From rguenth at tat.physik.uni-tuebingen.de  Tue Mar  2 09:20:06 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 2 Mar 2004 10:20:06 +0100 (CET)
Subject: [pooma-dev] AltView* classes
In-Reply-To: <403F5B29.6040005@tat.physik.uni-tuebingen.de>
References: <403F5B29.6040005@tat.physik.uni-tuebingen.de>
Message-ID: <Pine.LNX.4.53.0403021019230.31637@bellatrix.tat.physik.uni-tuebingen.de>

On Fri, 27 Feb 2004, Richard Guenther wrote:

> Hi!
>
> Does anyone remember the exact reason for the existance of the AltView*
> classes in Array.h and Field.h?  Removing them and fixing their usage to
> use View* seems to work (full test with gcc 3.3 and 3.4 in progress).

Testing completed with no new failures.  Would it be ok to remove those
AltView* classes?

Thanks,

Richard.

--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/


From rguenth at tat.physik.uni-tuebingen.de  Tue Mar  2 10:28:34 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 2 Mar 2004 11:28:34 +0100 (CET)
Subject: [pooma-dev] AltView* classes
In-Reply-To: <Pine.LNX.4.53.0403021019230.31637@bellatrix.tat.physik.uni-tuebingen.de>
References: <403F5B29.6040005@tat.physik.uni-tuebingen.de>
 <Pine.LNX.4.53.0403021019230.31637@bellatrix.tat.physik.uni-tuebingen.de>
Message-ID: <Pine.LNX.4.53.0403021126400.31637@bellatrix.tat.physik.uni-tuebingen.de>

On Tue, 2 Mar 2004, Richard Guenther wrote:

> On Fri, 27 Feb 2004, Richard Guenther wrote:
>
> > Hi!
> >
> > Does anyone remember the exact reason for the existance of the AltView*
> > classes in Array.h and Field.h?  Removing them and fixing their usage to
> > use View* seems to work (full test with gcc 3.3 and 3.4 in progress).
>
> Testing completed with no new failures.  Would it be ok to remove those
> AltView* classes?

Which would be...

Ok?

Richard.


2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Array/Array.h: remove all traces of AltView0 class.
	src/Field/Field.h: remove all traces of AltView1 and
	AltView1Implementation classes.

===== Array/Array.h 1.14 vs edited =====
--- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
+++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
@@ -649,8 +649,6 @@
 // an existing engine cannot be any kind of slice domain.
 // Also, bounds checking would make no sense because it would
 // reduce to contains(a.domain(), a.domain());
-//
-// Any changes to this class should also be made to AltView0.

 template<int Dim, class T, class EngineTag>
 struct View0<Array<Dim, T, EngineTag> >
@@ -695,41 +693,6 @@
     }
 };

-// AltView0 avoids an instantiation problem that arises when two
-// classes use each other.  This class's definition should be exactly
-// the same as View0 except omitting member functions.
-//
-// Do NOT explicitly instantiate this class.
-
-template<class ArrayTag>
-struct AltView0;
-
-template<int Dim, class T, class EngineTag>
-struct AltView0<Array<Dim, T, EngineTag> >
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Array<Dim, T, EngineTag> Subject_t;
-
-  // Deduce domains for the output type.
-  // At some point, we need to fix NewDomain1; until then, use
-  // the temporary version from Array.h.
-
-  typedef typename Subject_t::Engine_t Engine_t;
-  typedef typename Subject_t::Domain_t Domain_t;
-
-  // Deduce the template parameters for the output type.
-
-  typedef typename NewEngine<Engine_t, Domain_t>::Type_t NewEngine_t;
-  enum { newDim = NewEngine_t::dimensions };
-  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
-
-  // The output types.
-
-  typedef Array<newDim, T, NewEngineTag_t> Type_t;
-  typedef Type_t ReadType_t;
-};
-
 template<int Dim, class T, class EngineTag>
 struct View1<Array<Dim, T, EngineTag>, int>
 {
@@ -1864,7 +1827,7 @@
   /// A zero-argument version of operator(), which takes a view of
   /// array's domain, is also supplied.
   //@{
-  typename AltView0<This_t>::ReadType_t
+  typename View0<This_t>::ReadType_t
   read() const
     {
       typedef View0<This_t> Ret_t;
@@ -1934,7 +1897,7 @@
       return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
     }

-  typename AltView0<This_t>::Type_t
+  typename View0<This_t>::Type_t
   operator()() const
     {
       typedef View0<This_t> Ret_t;
===== Field/Field.h 1.14 vs edited =====
--- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
+++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
@@ -269,9 +269,6 @@
  * View1Implementation<Field, D, SV> specialization for indexing a field
  * with a single domain. There is a single-valued version (SV == true)
  * and a multi-valued version (SV == false).
- *
- * Any changes to View1Implementation should also be made to
- * AltView1Implementation.
  */

 // Single-valued version. Handles scalars and Locs.
@@ -508,62 +505,7 @@


 /**
- * AltView1Implementation avoids an instantiation problem that arises when two
- * classes use each other.  This class's definition should be exactly
- * the same as View1Implementation except omitting member functions.
- *
- * Do NOT explicitly instantiate this class.
- */
-
-// Single-valued version. Handles scalars and Locs.
-
-template<class Subject, class Domain, bool SV>
-struct AltView1Implementation;
-
-template<class Mesh, class T, class EngineTag, class Domain>
-struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, true>
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Field<Mesh, T, EngineTag> Subject_t;
-
-  // The return types are pretty simple here.
-
-  typedef typename Subject_t::Element_t ReadType_t;
-  typedef typename Subject_t::ElementRef_t Type_t;
-};
-
-template<class Mesh, class T, class EngineTag, class Domain>
-struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, false>
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Field<Mesh, T, EngineTag> Subject_t;
-
-  // Deduce domains for the output type.
-
-  typedef typename Subject_t::Engine_t Engine_t;
-  typedef typename NewEngine<Engine_t, Domain>::Type_t NewEngine_t;
-  typedef typename NewEngine_t::Element_t NewT_t;
-  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
-
-  // Deduce the new Mesh.
-
-  typedef typename
-    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
-      NewMeshTag_t;
-
-  // The output types.
-
-  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
-  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
-};
-
-
-/**
  * View1<Field, S1> specialization for indexing a field with a single domain.
- *
- * Any changes to View1 should also be made to AltView1.
  */

 template<class Mesh, class T, class EngineTag, class Sub1>
@@ -613,8 +555,6 @@

 /**
  * View1<Field, int> specialization for indexing a field with an int.
- *
- * Any changes to View1 should also be made to AltView1.
  */

 template<class Mesh, class T, class EngineTag>
@@ -658,71 +598,6 @@


 /**
- * AltView1 avoids an instantiation problem that arises when two
- * classes use each other.  This class's definition should be exactly
- * the same as View1 except omitting member functions.
- *
- * Do NOT explicitly instantiate this class.
- */
-
-template<class FieldTag, class DomainTag>
-struct AltView1;
-
-template<class Mesh, class T, class EngineTag, class Sub1>
-struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Field<Mesh, T, EngineTag> Subject_t;
-
-  // Deduce domains for the output type.
-  // At some point, we need to fix NewDomain1; until then, use
-  // the temporary version from NewDomain.h.
-
-  typedef typename Subject_t::Domain_t Domain_t;
-  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
-  typedef typename NewDomain_t::SliceType_t SDomain_t;
-
-  // Deduce appropriate version of implementation to dispatch to.
-
-  enum { sv = DomainTraits<SDomain_t>::singleValued };
-  typedef AltView1Implementation<Subject_t, SDomain_t, sv> Dispatch_t;
-
-  // The optimized domain combiner.
-
-  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
-
-  // The return types.
-
-  typedef typename Dispatch_t::ReadType_t ReadType_t;
-  typedef typename Dispatch_t::Type_t Type_t;
-};
-
-
-/**
- * AltView1 avoids an instantiation problem that arises when two
- * classes use each other.  This class's definition should be exactly
- * the same as View1 except omitting member functions.
- *
- * Do NOT explicitly instantiate this class.
- */
-
-template<class Mesh, class T, class EngineTag>
-struct AltView1<Field<Mesh, T, EngineTag>, int>
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Field<Mesh, T, EngineTag> Subject_t;
-
-  // The return types.
-
-  typedef typename Subject_t::Element_t ReadType_t;
-  typedef typename Subject_t::ElementRef_t Type_t;
-
-};
-
-
-/**
  * View2<Field, S1, S2> specialization for indexing a field with two
  * domains.
  */
@@ -1455,14 +1330,14 @@
   /// point fields the viewing domain is an actual centering domain.
   //@{

-  inline typename AltView1<This_t, Domain_t>::ReadType_t
+  inline typename View1<This_t, Domain_t>::ReadType_t
   read() const
     {
       typedef View1<This_t, Domain_t> Ret_t;
       return Ret_t::makeRead(*this, physicalDomain());
     }

-  inline typename AltView1<This_t, Domain_t>::ReadType_t
+  inline typename View1<This_t, Domain_t>::ReadType_t
   readAll() const
     {
       typedef View1<This_t, Domain_t> Ret_t;
@@ -1470,7 +1345,7 @@
     }

   template<class Sub1>
-  inline typename AltView1<This_t, Sub1>::ReadType_t
+  inline typename View1<This_t, Sub1>::ReadType_t
   read(const Sub1 &s1) const
     {
       typedef View1<This_t, Sub1> Ret_t;
@@ -1493,14 +1368,14 @@
       return Ret_t::makeRead(*this, s1, s2, s3);
     }

-  inline typename AltView1<This_t, Domain_t>::Type_t
+  inline typename View1<This_t, Domain_t>::Type_t
   operator()() const
     {
       typedef View1<This_t, Domain_t> Ret_t;
       return Ret_t::make(*this, physicalDomain());
     }

-  inline typename AltView1<This_t, Domain_t>::Type_t
+  inline typename View1<This_t, Domain_t>::Type_t
   all() const
     {
       typedef View1<This_t, Domain_t> Ret_t;
@@ -1508,7 +1383,7 @@
     }

   template<class Sub1>
-  inline typename AltView1<This_t, Sub1>::Type_t
+  inline typename View1<This_t, Sub1>::Type_t
   operator()(const Sub1 &s1) const
     {
       typedef View1<This_t, Sub1> Ret_t;


From jcrotinger at proximation.com  Tue Mar  2 16:10:37 2004
From: jcrotinger at proximation.com (James Crotinger)
Date: Tue, 2 Mar 2004 09:10:37 -0700 
Subject: [pooma-dev] AltView* classes
Message-ID: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com>

Hi Richard,

This tickled a neuron the other day, but I couldn't recall the details.

The AltView classes were put in to reduce link times and sizes for large
codes. The classes that have enums end up having a link-time cost, both in
space and time. I believe this refactoring was done to reduce the
cardinality of classes having the "sv" enum. My recollection is that this,
and other similar "optimizations", had a pretty substantial impact on
link-time for Blanca. Unless these are hurting something else, I would tend
to leave them in. 

Does the CodeSourcery CVS repository have complete CVS history? (i.e. did we
copy the repository, or just the head version?) This should have been easy
to determine via CVS. 

	Jim

------------------------------------------------------------------------
James A. Crotinger                           email:     jimc at numerix.com
NumeriX, LLC                                 phone:  (505) 424-4477 x104
2960 Rodeo Park Dr. W.
Santa Fe, NM 87505
 

> -----Original Message-----
> From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
> Sent: Tuesday, March 02, 2004 3:29 AM
> To: pooma-dev at pooma.codesourcery.com
> Cc: Jeffrey D. Oldham
> Subject: Re: [pooma-dev] AltView* classes
> 
> On Tue, 2 Mar 2004, Richard Guenther wrote:
> 
> > On Fri, 27 Feb 2004, Richard Guenther wrote:
> >
> > > Hi!
> > >
> > > Does anyone remember the exact reason for the existance of the
> AltView*
> > > classes in Array.h and Field.h?  Removing them and fixing their usage
> to
> > > use View* seems to work (full test with gcc 3.3 and 3.4 in progress).
> >
> > Testing completed with no new failures.  Would it be ok to remove those
> > AltView* classes?
> 
> Which would be...
> 
> Ok?
> 
> Richard.
> 
> 
> 2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>
> 
> 	* src/Array/Array.h: remove all traces of AltView0 class.
> 	src/Field/Field.h: remove all traces of AltView1 and
> 	AltView1Implementation classes.
> 
> ===== Array/Array.h 1.14 vs edited =====
> --- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
> +++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
> @@ -649,8 +649,6 @@
>  // an existing engine cannot be any kind of slice domain.
>  // Also, bounds checking would make no sense because it would
>  // reduce to contains(a.domain(), a.domain());
> -//
> -// Any changes to this class should also be made to AltView0.
> 
>  template<int Dim, class T, class EngineTag>
>  struct View0<Array<Dim, T, EngineTag> >
> @@ -695,41 +693,6 @@
>      }
>  };
> 
> -// AltView0 avoids an instantiation problem that arises when two
> -// classes use each other.  This class's definition should be exactly
> -// the same as View0 except omitting member functions.
> -//
> -// Do NOT explicitly instantiate this class.
> -
> -template<class ArrayTag>
> -struct AltView0;
> -
> -template<int Dim, class T, class EngineTag>
> -struct AltView0<Array<Dim, T, EngineTag> >
> -{
> -  // Convenience typedef for the thing we're taking a view of.
> -
> -  typedef Array<Dim, T, EngineTag> Subject_t;
> -
> -  // Deduce domains for the output type.
> -  // At some point, we need to fix NewDomain1; until then, use
> -  // the temporary version from Array.h.
> -
> -  typedef typename Subject_t::Engine_t Engine_t;
> -  typedef typename Subject_t::Domain_t Domain_t;
> -
> -  // Deduce the template parameters for the output type.
> -
> -  typedef typename NewEngine<Engine_t, Domain_t>::Type_t NewEngine_t;
> -  enum { newDim = NewEngine_t::dimensions };
> -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
> -
> -  // The output types.
> -
> -  typedef Array<newDim, T, NewEngineTag_t> Type_t;
> -  typedef Type_t ReadType_t;
> -};
> -
>  template<int Dim, class T, class EngineTag>
>  struct View1<Array<Dim, T, EngineTag>, int>
>  {
> @@ -1864,7 +1827,7 @@
>    /// A zero-argument version of operator(), which takes a view of
>    /// array's domain, is also supplied.
>    //@{
> -  typename AltView0<This_t>::ReadType_t
> +  typename View0<This_t>::ReadType_t
>    read() const
>      {
>        typedef View0<This_t> Ret_t;
> @@ -1934,7 +1897,7 @@
>        return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
>      }
> 
> -  typename AltView0<This_t>::Type_t
> +  typename View0<This_t>::Type_t
>    operator()() const
>      {
>        typedef View0<This_t> Ret_t;
> ===== Field/Field.h 1.14 vs edited =====
> --- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
> +++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
> @@ -269,9 +269,6 @@
>   * View1Implementation<Field, D, SV> specialization for indexing a field
>   * with a single domain. There is a single-valued version (SV == true)
>   * and a multi-valued version (SV == false).
> - *
> - * Any changes to View1Implementation should also be made to
> - * AltView1Implementation.
>   */
> 
>  // Single-valued version. Handles scalars and Locs.
> @@ -508,62 +505,7 @@
> 
> 
>  /**
> - * AltView1Implementation avoids an instantiation problem that arises
> when two
> - * classes use each other.  This class's definition should be exactly
> - * the same as View1Implementation except omitting member functions.
> - *
> - * Do NOT explicitly instantiate this class.
> - */
> -
> -// Single-valued version. Handles scalars and Locs.
> -
> -template<class Subject, class Domain, bool SV>
> -struct AltView1Implementation;
> -
> -template<class Mesh, class T, class EngineTag, class Domain>
> -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, true>
> -{
> -  // Convenience typedef for the thing we're taking a view of.
> -
> -  typedef Field<Mesh, T, EngineTag> Subject_t;
> -
> -  // The return types are pretty simple here.
> -
> -  typedef typename Subject_t::Element_t ReadType_t;
> -  typedef typename Subject_t::ElementRef_t Type_t;
> -};
> -
> -template<class Mesh, class T, class EngineTag, class Domain>
> -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, false>
> -{
> -  // Convenience typedef for the thing we're taking a view of.
> -
> -  typedef Field<Mesh, T, EngineTag> Subject_t;
> -
> -  // Deduce domains for the output type.
> -
> -  typedef typename Subject_t::Engine_t Engine_t;
> -  typedef typename NewEngine<Engine_t, Domain>::Type_t NewEngine_t;
> -  typedef typename NewEngine_t::Element_t NewT_t;
> -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
> -
> -  // Deduce the new Mesh.
> -
> -  typedef typename
> -    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
> -      NewMeshTag_t;
> -
> -  // The output types.
> -
> -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
> -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
> -};
> -
> -
> -/**
>   * View1<Field, S1> specialization for indexing a field with a single
> domain.
> - *
> - * Any changes to View1 should also be made to AltView1.
>   */
> 
>  template<class Mesh, class T, class EngineTag, class Sub1>
> @@ -613,8 +555,6 @@
> 
>  /**
>   * View1<Field, int> specialization for indexing a field with an int.
> - *
> - * Any changes to View1 should also be made to AltView1.
>   */
> 
>  template<class Mesh, class T, class EngineTag>
> @@ -658,71 +598,6 @@
> 
> 
>  /**
> - * AltView1 avoids an instantiation problem that arises when two
> - * classes use each other.  This class's definition should be exactly
> - * the same as View1 except omitting member functions.
> - *
> - * Do NOT explicitly instantiate this class.
> - */
> -
> -template<class FieldTag, class DomainTag>
> -struct AltView1;
> -
> -template<class Mesh, class T, class EngineTag, class Sub1>
> -struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
> -{
> -  // Convenience typedef for the thing we're taking a view of.
> -
> -  typedef Field<Mesh, T, EngineTag> Subject_t;
> -
> -  // Deduce domains for the output type.
> -  // At some point, we need to fix NewDomain1; until then, use
> -  // the temporary version from NewDomain.h.
> -
> -  typedef typename Subject_t::Domain_t Domain_t;
> -  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
> -  typedef typename NewDomain_t::SliceType_t SDomain_t;
> -
> -  // Deduce appropriate version of implementation to dispatch to.
> -
> -  enum { sv = DomainTraits<SDomain_t>::singleValued };
> -  typedef AltView1Implementation<Subject_t, SDomain_t, sv> Dispatch_t;
> -
> -  // The optimized domain combiner.
> -
> -  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
> -
> -  // The return types.
> -
> -  typedef typename Dispatch_t::ReadType_t ReadType_t;
> -  typedef typename Dispatch_t::Type_t Type_t;
> -};
> -
> -
> -/**
> - * AltView1 avoids an instantiation problem that arises when two
> - * classes use each other.  This class's definition should be exactly
> - * the same as View1 except omitting member functions.
> - *
> - * Do NOT explicitly instantiate this class.
> - */
> -
> -template<class Mesh, class T, class EngineTag>
> -struct AltView1<Field<Mesh, T, EngineTag>, int>
> -{
> -  // Convenience typedef for the thing we're taking a view of.
> -
> -  typedef Field<Mesh, T, EngineTag> Subject_t;
> -
> -  // The return types.
> -
> -  typedef typename Subject_t::Element_t ReadType_t;
> -  typedef typename Subject_t::ElementRef_t Type_t;
> -
> -};
> -
> -
> -/**
>   * View2<Field, S1, S2> specialization for indexing a field with two
>   * domains.
>   */
> @@ -1455,14 +1330,14 @@
>    /// point fields the viewing domain is an actual centering domain.
>    //@{
> 
> -  inline typename AltView1<This_t, Domain_t>::ReadType_t
> +  inline typename View1<This_t, Domain_t>::ReadType_t
>    read() const
>      {
>        typedef View1<This_t, Domain_t> Ret_t;
>        return Ret_t::makeRead(*this, physicalDomain());
>      }
> 
> -  inline typename AltView1<This_t, Domain_t>::ReadType_t
> +  inline typename View1<This_t, Domain_t>::ReadType_t
>    readAll() const
>      {
>        typedef View1<This_t, Domain_t> Ret_t;
> @@ -1470,7 +1345,7 @@
>      }
> 
>    template<class Sub1>
> -  inline typename AltView1<This_t, Sub1>::ReadType_t
> +  inline typename View1<This_t, Sub1>::ReadType_t
>    read(const Sub1 &s1) const
>      {
>        typedef View1<This_t, Sub1> Ret_t;
> @@ -1493,14 +1368,14 @@
>        return Ret_t::makeRead(*this, s1, s2, s3);
>      }
> 
> -  inline typename AltView1<This_t, Domain_t>::Type_t
> +  inline typename View1<This_t, Domain_t>::Type_t
>    operator()() const
>      {
>        typedef View1<This_t, Domain_t> Ret_t;
>        return Ret_t::make(*this, physicalDomain());
>      }
> 
> -  inline typename AltView1<This_t, Domain_t>::Type_t
> +  inline typename View1<This_t, Domain_t>::Type_t
>    all() const
>      {
>        typedef View1<This_t, Domain_t> Ret_t;
> @@ -1508,7 +1383,7 @@
>      }
> 
>    template<class Sub1>
> -  inline typename AltView1<This_t, Sub1>::Type_t
> +  inline typename View1<This_t, Sub1>::Type_t
>    operator()(const Sub1 &s1) const
>      {
>        typedef View1<This_t, Sub1> Ret_t;
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From oldham at codesourcery.com  Tue Mar  2 16:19:09 2004
From: oldham at codesourcery.com (Jeffrey D. Oldham)
Date: Tue, 02 Mar 2004 08:19:09 -0800
Subject: [pooma-dev] AltView* classes
In-Reply-To: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com>
References: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com>
Message-ID: <4044B3FD.8090509@codesourcery.com>


James Crotinger wrote:
> Hi Richard,
> 
> This tickled a neuron the other day, but I couldn't recall the details.
> 
> The AltView classes were put in to reduce link times and sizes for large 
> codes. The classes that have enums end up having a link-time cost, both 
> in space and time. I believe this refactoring was done to reduce the 
> cardinality of classes having the "sv" enum. My recollection is that 
> this, and other similar "optimizations", had a pretty substantial impact 
> on link-time for Blanca. Unless these are hurting something else, I 
> would tend to leave them in.
> 
> Does the CodeSourcery CVS repository have complete CVS history? (i.e. 
> did we copy the repository, or just the head version?) This should have 
> been easy to determine via CVS.

The POOMA CVS repository history goes back to at least 1998 March.  For 
example, see the log for src/Array/Array.h.  This log gives an entry for 
AltView0 and AltView1Implementation:

revision 1.141
date: 2001/05/25 17:42:48;  author: oldham;  state: Exp;  lines: +47 -6
branches:  1.141.4;
2001-05-25  Jeffrey D. Oldham <oldham at codesourcery.com>
	* Array/Array.h (View0): Modify initial comment to indicate
	changes should also be made to AltView0.
	(AltView0): New class to avoid explicit instantiation problems.
	(ComponentView): Modify initial comment to indicate class should
	not be explicitly instantiated.
	(Array::read()): Change return type to AltView0.
	(Array::operator()()): Likewise.

	* NewField/Field.h (View1Implementation): Modify initial comment
	to indicate changes should also be made to AltView1Implementation.
	(AltView1Implementation): New class to avoid explicit
	instantiation problems.
	(View1): Modify initial comment to indicate changes should also be
	made to AltView1.
	(AltView1): New class to avoid explicit instantiation problems.
	(Field::read()): Change return type to AltView1.
	(Field::readAll()): Likewise.
	(Field::read(s1)): Likewise.
	(Field::operator()()): Likewise.
	(Field::all()): Likewise.
	(Field::operator()(s1)): Likewise.

Perhaps this will jog Jim's memory more.  I do not remember much about this.
-- 
Jeffrey D. Oldham
oldham at codesourcery.com


From rguenth at tat.physik.uni-tuebingen.de  Tue Mar  2 16:53:53 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 02 Mar 2004 17:53:53 +0100
Subject: [pooma-dev] AltView* classes
In-Reply-To: <4044B3FD.8090509@codesourcery.com>
References: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com> <4044B3FD.8090509@codesourcery.com>
Message-ID: <4044BC21.5010001@tat.physik.uni-tuebingen.de>

Jeffrey D. Oldham wrote:
> 
> James Crotinger wrote:
> 
>> Hi Richard,
>>
>> This tickled a neuron the other day, but I couldn't recall the details.
>>
>> The AltView classes were put in to reduce link times and sizes for 
>> large codes. The classes that have enums end up having a link-time 
>> cost, both in space and time. I believe this refactoring was done to 
>> reduce the cardinality of classes having the "sv" enum. My 
>> recollection is that this, and other similar "optimizations", had a 
>> pretty substantial impact on link-time for Blanca. Unless these are 
>> hurting something else, I would tend to leave them in.

It seems they are only used for return type creation which hinted me 
that it may have beed a compiler bug workaround (so does the CVS 
histroy).  As an optimization this looks worthless at it just adds 
classes to parse. No?


> The POOMA CVS repository history goes back to at least 1998 March.  For 
> example, see the log for src/Array/Array.h.  This log gives an entry for 
> AltView0 and AltView1Implementation:
> 
> revision 1.141
> date: 2001/05/25 17:42:48;  author: oldham;  state: Exp;  lines: +47 -6
> branches:  1.141.4;
> 2001-05-25  Jeffrey D. Oldham <oldham at codesourcery.com>
>     * Array/Array.h (View0): Modify initial comment to indicate
>     changes should also be made to AltView0.
>     (AltView0): New class to avoid explicit instantiation problems.

The same comment is above the classes in the source, but it's not very 
helpful in trying to figure out what these problems are/were.

It's in my tree now, so I won't forget about it at least until the next 
treediff to CVS.

Richard.


From wdn at lanl.gov  Tue Mar  2 17:00:27 2004
From: wdn at lanl.gov (Dave Nystrom)
Date: Tue, 2 Mar 2004 10:00:27 -0700
Subject: [pooma-dev] AltView* classes
In-Reply-To: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com>
References: <F871BB04B0EA224A821A5274C31DF315150962@proxim-sf001.santafe.proximation.com>
Message-ID: <16452.48555.115583.812762@bedell.lanl.gov>

These AltView classes were put in by Jeffrey Oldham to fix a problem that I
was having trying to explicitly instantiate all the Pooma classes and
functions that Blanca code was using.  Basically, the way the Pooma 2 Field
class was originally written, we were getting one of these "sv" enums
instantiated for every unique expression which we had in our source code
base.  I was unable to explicitly instantiate these "sv" enums the way the
code was originally written because of some issue which Arch Robison of Kuck
and Associates (now Intel) identified - basically the code in it's original
form violated some corner case of the C++ standard according to Arch.
Jeffrey fixed this problem by adding the AltView class and then I was able to
perform the explicit instantiations that I needed.

However, I believe Jeffrey or someone else has gone through the code and
replaced the "sv" enums with some other construct which does not have the
explicit instantiation difficulties that the "sv" enums had.  So, I think
that it is probably okay to remove the AltView classes and that this would
clean up the code considerably.  I may revisit all this explicit
instantiation stuff sometime in the not to distant future on a hobby basis
(weird hobby, huh) and if I encounter difficulties being able to explicitly
instantiate anything, I could then raise it as an issue at that time.

In summary, the AltView classes were added by Jeffrey to fix an explicit
instantiation problem that I think no longer exists and I am in favor of now
removing them in the interest of cleaning up the code as much as possible.

-- 
Dave Nystrom			email: wdn at lanl.gov
LANL X-2			phone: 505-667-7913	fax: 505-665-2227

James Crotinger writes:
 > Hi Richard,
 > 
 > This tickled a neuron the other day, but I couldn't recall the details.
 > 
 > The AltView classes were put in to reduce link times and sizes for large
 > codes. The classes that have enums end up having a link-time cost, both in
 > space and time. I believe this refactoring was done to reduce the
 > cardinality of classes having the "sv" enum. My recollection is that this,
 > and other similar "optimizations", had a pretty substantial impact on
 > link-time for Blanca. Unless these are hurting something else, I would tend
 > to leave them in. 
 > 
 > Does the CodeSourcery CVS repository have complete CVS history? (i.e. did we
 > copy the repository, or just the head version?) This should have been easy
 > to determine via CVS. 
 > 
 > 	Jim
 > 
 > ------------------------------------------------------------------------
 > James A. Crotinger                           email:     jimc at numerix.com
 > NumeriX, LLC                                 phone:  (505) 424-4477 x104
 > 2960 Rodeo Park Dr. W.
 > Santa Fe, NM 87505
 >  
 > 
 > > -----Original Message-----
 > > From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
 > > Sent: Tuesday, March 02, 2004 3:29 AM
 > > To: pooma-dev at pooma.codesourcery.com
 > > Cc: Jeffrey D. Oldham
 > > Subject: Re: [pooma-dev] AltView* classes
 > > 
 > > On Tue, 2 Mar 2004, Richard Guenther wrote:
 > > 
 > > > On Fri, 27 Feb 2004, Richard Guenther wrote:
 > > >
 > > > > Hi!
 > > > >
 > > > > Does anyone remember the exact reason for the existance of the
 > > AltView*
 > > > > classes in Array.h and Field.h?  Removing them and fixing their usage
 > > to
 > > > > use View* seems to work (full test with gcc 3.3 and 3.4 in progress).
 > > >
 > > > Testing completed with no new failures.  Would it be ok to remove those
 > > > AltView* classes?
 > > 
 > > Which would be...
 > > 
 > > Ok?
 > > 
 > > Richard.
 > > 
 > > 
 > > 2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>
 > > 
 > > 	* src/Array/Array.h: remove all traces of AltView0 class.
 > > 	src/Field/Field.h: remove all traces of AltView1 and
 > > 	AltView1Implementation classes.
 > > 
 > > ===== Array/Array.h 1.14 vs edited =====
 > > --- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
 > > +++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
 > > @@ -649,8 +649,6 @@
 > >  // an existing engine cannot be any kind of slice domain.
 > >  // Also, bounds checking would make no sense because it would
 > >  // reduce to contains(a.domain(), a.domain());
 > > -//
 > > -// Any changes to this class should also be made to AltView0.
 > > 
 > >  template<int Dim, class T, class EngineTag>
 > >  struct View0<Array<Dim, T, EngineTag> >
 > > @@ -695,41 +693,6 @@
 > >      }
 > >  };
 > > 
 > > -// AltView0 avoids an instantiation problem that arises when two
 > > -// classes use each other.  This class's definition should be exactly
 > > -// the same as View0 except omitting member functions.
 > > -//
 > > -// Do NOT explicitly instantiate this class.
 > > -
 > > -template<class ArrayTag>
 > > -struct AltView0;
 > > -
 > > -template<int Dim, class T, class EngineTag>
 > > -struct AltView0<Array<Dim, T, EngineTag> >
 > > -{
 > > -  // Convenience typedef for the thing we're taking a view of.
 > > -
 > > -  typedef Array<Dim, T, EngineTag> Subject_t;
 > > -
 > > -  // Deduce domains for the output type.
 > > -  // At some point, we need to fix NewDomain1; until then, use
 > > -  // the temporary version from Array.h.
 > > -
 > > -  typedef typename Subject_t::Engine_t Engine_t;
 > > -  typedef typename Subject_t::Domain_t Domain_t;
 > > -
 > > -  // Deduce the template parameters for the output type.
 > > -
 > > -  typedef typename NewEngine<Engine_t, Domain_t>::Type_t NewEngine_t;
 > > -  enum { newDim = NewEngine_t::dimensions };
 > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
 > > -
 > > -  // The output types.
 > > -
 > > -  typedef Array<newDim, T, NewEngineTag_t> Type_t;
 > > -  typedef Type_t ReadType_t;
 > > -};
 > > -
 > >  template<int Dim, class T, class EngineTag>
 > >  struct View1<Array<Dim, T, EngineTag>, int>
 > >  {
 > > @@ -1864,7 +1827,7 @@
 > >    /// A zero-argument version of operator(), which takes a view of
 > >    /// array's domain, is also supplied.
 > >    //@{
 > > -  typename AltView0<This_t>::ReadType_t
 > > +  typename View0<This_t>::ReadType_t
 > >    read() const
 > >      {
 > >        typedef View0<This_t> Ret_t;
 > > @@ -1934,7 +1897,7 @@
 > >        return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
 > >      }
 > > 
 > > -  typename AltView0<This_t>::Type_t
 > > +  typename View0<This_t>::Type_t
 > >    operator()() const
 > >      {
 > >        typedef View0<This_t> Ret_t;
 > > ===== Field/Field.h 1.14 vs edited =====
 > > --- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
 > > +++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
 > > @@ -269,9 +269,6 @@
 > >   * View1Implementation<Field, D, SV> specialization for indexing a field
 > >   * with a single domain. There is a single-valued version (SV == true)
 > >   * and a multi-valued version (SV == false).
 > > - *
 > > - * Any changes to View1Implementation should also be made to
 > > - * AltView1Implementation.
 > >   */
 > > 
 > >  // Single-valued version. Handles scalars and Locs.
 > > @@ -508,62 +505,7 @@
 > > 
 > > 
 > >  /**
 > > - * AltView1Implementation avoids an instantiation problem that arises
 > > when two
 > > - * classes use each other.  This class's definition should be exactly
 > > - * the same as View1Implementation except omitting member functions.
 > > - *
 > > - * Do NOT explicitly instantiate this class.
 > > - */
 > > -
 > > -// Single-valued version. Handles scalars and Locs.
 > > -
 > > -template<class Subject, class Domain, bool SV>
 > > -struct AltView1Implementation;
 > > -
 > > -template<class Mesh, class T, class EngineTag, class Domain>
 > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, true>
 > > -{
 > > -  // Convenience typedef for the thing we're taking a view of.
 > > -
 > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > > -
 > > -  // The return types are pretty simple here.
 > > -
 > > -  typedef typename Subject_t::Element_t ReadType_t;
 > > -  typedef typename Subject_t::ElementRef_t Type_t;
 > > -};
 > > -
 > > -template<class Mesh, class T, class EngineTag, class Domain>
 > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain, false>
 > > -{
 > > -  // Convenience typedef for the thing we're taking a view of.
 > > -
 > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > > -
 > > -  // Deduce domains for the output type.
 > > -
 > > -  typedef typename Subject_t::Engine_t Engine_t;
 > > -  typedef typename NewEngine<Engine_t, Domain>::Type_t NewEngine_t;
 > > -  typedef typename NewEngine_t::Element_t NewT_t;
 > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
 > > -
 > > -  // Deduce the new Mesh.
 > > -
 > > -  typedef typename
 > > -    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
 > > -      NewMeshTag_t;
 > > -
 > > -  // The output types.
 > > -
 > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
 > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
 > > -};
 > > -
 > > -
 > > -/**
 > >   * View1<Field, S1> specialization for indexing a field with a single
 > > domain.
 > > - *
 > > - * Any changes to View1 should also be made to AltView1.
 > >   */
 > > 
 > >  template<class Mesh, class T, class EngineTag, class Sub1>
 > > @@ -613,8 +555,6 @@
 > > 
 > >  /**
 > >   * View1<Field, int> specialization for indexing a field with an int.
 > > - *
 > > - * Any changes to View1 should also be made to AltView1.
 > >   */
 > > 
 > >  template<class Mesh, class T, class EngineTag>
 > > @@ -658,71 +598,6 @@
 > > 
 > > 
 > >  /**
 > > - * AltView1 avoids an instantiation problem that arises when two
 > > - * classes use each other.  This class's definition should be exactly
 > > - * the same as View1 except omitting member functions.
 > > - *
 > > - * Do NOT explicitly instantiate this class.
 > > - */
 > > -
 > > -template<class FieldTag, class DomainTag>
 > > -struct AltView1;
 > > -
 > > -template<class Mesh, class T, class EngineTag, class Sub1>
 > > -struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
 > > -{
 > > -  // Convenience typedef for the thing we're taking a view of.
 > > -
 > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > > -
 > > -  // Deduce domains for the output type.
 > > -  // At some point, we need to fix NewDomain1; until then, use
 > > -  // the temporary version from NewDomain.h.
 > > -
 > > -  typedef typename Subject_t::Domain_t Domain_t;
 > > -  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
 > > -  typedef typename NewDomain_t::SliceType_t SDomain_t;
 > > -
 > > -  // Deduce appropriate version of implementation to dispatch to.
 > > -
 > > -  enum { sv = DomainTraits<SDomain_t>::singleValued };
 > > -  typedef AltView1Implementation<Subject_t, SDomain_t, sv> Dispatch_t;
 > > -
 > > -  // The optimized domain combiner.
 > > -
 > > -  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
 > > -
 > > -  // The return types.
 > > -
 > > -  typedef typename Dispatch_t::ReadType_t ReadType_t;
 > > -  typedef typename Dispatch_t::Type_t Type_t;
 > > -};
 > > -
 > > -
 > > -/**
 > > - * AltView1 avoids an instantiation problem that arises when two
 > > - * classes use each other.  This class's definition should be exactly
 > > - * the same as View1 except omitting member functions.
 > > - *
 > > - * Do NOT explicitly instantiate this class.
 > > - */
 > > -
 > > -template<class Mesh, class T, class EngineTag>
 > > -struct AltView1<Field<Mesh, T, EngineTag>, int>
 > > -{
 > > -  // Convenience typedef for the thing we're taking a view of.
 > > -
 > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > > -
 > > -  // The return types.
 > > -
 > > -  typedef typename Subject_t::Element_t ReadType_t;
 > > -  typedef typename Subject_t::ElementRef_t Type_t;
 > > -
 > > -};
 > > -
 > > -
 > > -/**
 > >   * View2<Field, S1, S2> specialization for indexing a field with two
 > >   * domains.
 > >   */
 > > @@ -1455,14 +1330,14 @@
 > >    /// point fields the viewing domain is an actual centering domain.
 > >    //@{
 > > 
 > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
 > > +  inline typename View1<This_t, Domain_t>::ReadType_t
 > >    read() const
 > >      {
 > >        typedef View1<This_t, Domain_t> Ret_t;
 > >        return Ret_t::makeRead(*this, physicalDomain());
 > >      }
 > > 
 > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
 > > +  inline typename View1<This_t, Domain_t>::ReadType_t
 > >    readAll() const
 > >      {
 > >        typedef View1<This_t, Domain_t> Ret_t;
 > > @@ -1470,7 +1345,7 @@
 > >      }
 > > 
 > >    template<class Sub1>
 > > -  inline typename AltView1<This_t, Sub1>::ReadType_t
 > > +  inline typename View1<This_t, Sub1>::ReadType_t
 > >    read(const Sub1 &s1) const
 > >      {
 > >        typedef View1<This_t, Sub1> Ret_t;
 > > @@ -1493,14 +1368,14 @@
 > >        return Ret_t::makeRead(*this, s1, s2, s3);
 > >      }
 > > 
 > > -  inline typename AltView1<This_t, Domain_t>::Type_t
 > > +  inline typename View1<This_t, Domain_t>::Type_t
 > >    operator()() const
 > >      {
 > >        typedef View1<This_t, Domain_t> Ret_t;
 > >        return Ret_t::make(*this, physicalDomain());
 > >      }
 > > 
 > > -  inline typename AltView1<This_t, Domain_t>::Type_t
 > > +  inline typename View1<This_t, Domain_t>::Type_t
 > >    all() const
 > >      {
 > >        typedef View1<This_t, Domain_t> Ret_t;
 > > @@ -1508,7 +1383,7 @@
 > >      }
 > > 
 > >    template<class Sub1>
 > > -  inline typename AltView1<This_t, Sub1>::Type_t
 > > +  inline typename View1<This_t, Sub1>::Type_t
 > >    operator()(const Sub1 &s1) const
 > >      {
 > >        typedef View1<This_t, Sub1> Ret_t;
 > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
 > <HTML>
 > <HEAD>
 > <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
 > <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
 > <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
 > </HEAD>
 > <BODY>
 > 
 > <P><FONT SIZE=2>Hi Richard,</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>This tickled a neuron the other day, but I couldn't recall the details.</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>The AltView classes were put in to reduce link times and sizes for large codes. The classes that have enums end up having a link-time cost, both in space and time. I believe this refactoring was done to reduce the cardinality of classes having the &quot;sv&quot; enum. My recollection is that this, and other similar &quot;optimizations&quot;, had a pretty substantial impact on link-time for Blanca. Unless these are hurting something else, I would tend to leave them in. </FONT></P>
 > 
 > <P><FONT SIZE=2>Does the CodeSourcery CVS repository have complete CVS history? (i.e. did we copy the repository, or just the head version?) This should have been easy to determine via CVS. </FONT></P>
 > 
 > <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>Jim</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>------------------------------------------------------------------------</FONT>
 > <BR><FONT SIZE=2>James A. Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp; jimc at numerix.com</FONT>
 > <BR><FONT SIZE=2>NumeriX, LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505) 424-4477 x104</FONT>
 > <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
 > <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
 > <BR><FONT SIZE=2>&nbsp;</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
 > <BR><FONT SIZE=2>&gt; From: Richard Guenther [<A HREF="mailto:rguenth at tat.physik.uni-tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
 > <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 3:29 AM</FONT>
 > <BR><FONT SIZE=2>&gt; To: pooma-dev at pooma.codesourcery.com</FONT>
 > <BR><FONT SIZE=2>&gt; Cc: Jeffrey D. Oldham</FONT>
 > <BR><FONT SIZE=2>&gt; Subject: Re: [pooma-dev] AltView* classes</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; On Tue, 2 Mar 2004, Richard Guenther wrote:</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; &gt; On Fri, 27 Feb 2004, Richard Guenther wrote:</FONT>
 > <BR><FONT SIZE=2>&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; &gt; Hi!</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; &gt; Does anyone remember the exact reason for the existance of the</FONT>
 > <BR><FONT SIZE=2>&gt; AltView*</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; &gt; classes in Array.h and Field.h?&nbsp; Removing them and fixing their usage</FONT>
 > <BR><FONT SIZE=2>&gt; to</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; &gt; use View* seems to work (full test with gcc 3.3 and 3.4 in progress).</FONT>
 > <BR><FONT SIZE=2>&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; Testing completed with no new failures.&nbsp; Would it be ok to remove those</FONT>
 > <BR><FONT SIZE=2>&gt; &gt; AltView* classes?</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; Which would be...</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; Ok?</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; Richard.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; 2004Mar02&nbsp; Richard Guenther &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; * src/Array/Array.h: remove all traces of AltView0 class.</FONT>
 > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src/Field/Field.h: remove all traces of AltView1 and</FONT>
 > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AltView1Implementation classes.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; ===== Array/Array.h 1.14 vs edited =====</FONT>
 > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16 15:19:57 2003</FONT>
 > <BR><FONT SIZE=2>&gt; +++ edited/Array/Array.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2 11:24:14 2004</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -649,8 +649,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; // an existing engine cannot be any kind of slice domain.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; // Also, bounds checking would make no sense because it would</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; // reduce to contains(a.domain(), a.domain());</FONT>
 > <BR><FONT SIZE=2>&gt; -//</FONT>
 > <BR><FONT SIZE=2>&gt; -// Any changes to this class should also be made to AltView0.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; struct View0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -695,41 +693,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; };</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -// AltView0 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt; -// classes use each other.&nbsp; This class's definition should be exactly</FONT>
 > <BR><FONT SIZE=2>&gt; -// the same as View0 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt; -//</FONT>
 > <BR><FONT SIZE=2>&gt; -// Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class ArrayTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView0;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;Dim, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix NewDomain1; until then, use</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from Array.h.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t Engine_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t Domain_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the template parameters for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t, Domain_t&gt;::Type_t NewEngine_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; enum { newDim = NewEngine_t::dimensions };</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t NewEngineTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;newDim, T, NewEngineTag_t&gt; Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Type_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; struct View1&lt;Array&lt;Dim, T, EngineTag&gt;, int&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1864,7 +1827,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// A zero-argument version of operator(), which takes a view of</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// array's domain, is also supplied.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typename AltView0&lt;This_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; typename View0&lt;This_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View0&lt;This_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1934,7 +1897,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typename AltView0&lt;This_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; typename View0&lt;This_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View0&lt;This_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt; ===== Field/Field.h 1.14 vs edited =====</FONT>
 > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16 15:20:00 2003</FONT>
 > <BR><FONT SIZE=2>&gt; +++ edited/Field/Field.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2 11:25:22 2004</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -269,9 +269,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1Implementation&lt;Field, D, SV&gt; specialization for indexing a field</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * with a single domain. There is a single-valued version (SV == true)</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * and a multi-valued version (SV == false).</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Any changes to View1Implementation should also be made to</FONT>
 > <BR><FONT SIZE=2>&gt; - * AltView1Implementation.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; // Single-valued version. Handles scalars and Locs.</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -508,62 +505,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt; - * AltView1Implementation avoids an instantiation problem that arises</FONT>
 > <BR><FONT SIZE=2>&gt; when two</FONT>
 > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's definition should be exactly</FONT>
 > <BR><FONT SIZE=2>&gt; - * the same as View1Implementation except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -// Single-valued version. Handles scalars and Locs.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class Subject, class Domain, bool SV&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class EngineTag, class Domain&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;, Domain, true&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types are pretty simple here.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class EngineTag, class Domain&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;, Domain, false&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t Engine_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t, Domain&gt;::Type_t NewEngine_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Element_t NewT_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t NewEngineTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the new Mesh.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp; NewMeshTag&lt;NewEngine_t::dimensions, Mesh, Domain&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NewMeshTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, S1&gt; specialization for indexing a field with a single</FONT>
 > <BR><FONT SIZE=2>&gt; domain.</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to AltView1.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class EngineTag, class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -613,8 +555,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, int&gt; specialization for indexing a field with an int.</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to AltView1.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -658,71 +598,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's definition should be exactly</FONT>
 > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class FieldTag, class DomainTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class EngineTag, class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix NewDomain1; until then, use</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from NewDomain.h.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t Domain_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef TemporaryNewDomain1&lt;Domain_t, Sub1&gt; NewDomain_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewDomain_t::SliceType_t SDomain_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce appropriate version of implementation to dispatch to.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; enum { sv = DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt; Dispatch_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The optimized domain combiner.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef CombineDomainOpt&lt;NewDomain_t, sv&gt; Combine_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::ReadType_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::Type_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's definition should be exactly</FONT>
 > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, int&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View2&lt;Field, S1, S2&gt; specialization for indexing a field with two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * domains.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1455,14 +1330,14 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// point fields the viewing domain is an actual centering domain.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, physicalDomain());</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; readAll() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1470,7 +1345,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read(const Sub1 &amp;s1) const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1493,14 +1368,14 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, s1, s2, s3);</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::make(*this, physicalDomain());</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; all() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt; @@ -1508,7 +1383,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t, Sub1&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t, Sub1&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()(const Sub1 &amp;s1) const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > </P>
 > 
 > </BODY>
 > </HTML>


From jcrotinger at proximation.com  Tue Mar  2 17:03:20 2004
From: jcrotinger at proximation.com (James Crotinger)
Date: Tue, 2 Mar 2004 10:03:20 -0700 
Subject: [pooma-dev] AltView* classes
Message-ID: <F871BB04B0EA224A821A5274C31DF315150967@proxim-sf001.santafe.proximation.com>

Hi all,

Jeffrey's email shook a few more things loose. :)

Yes, more classes means more parse time, but the issue was link time. The
Blanca folk did explicit instantiation of as much stuff as they could. My
recollection was that without explicit instantiation, there was a link-time
compile for every view in every file that took a view, or something like
that. There was a problem doing implicit instantiation of the views
themselves, though I don't remember what the issue was. The solution was to
move the enum into the AltView class and explicitly instantiate all of
these. With this addition, the linker always found the sv variable and no
additional link-time compile was needed.

This is obviously coming from some pretty rusty neurons, but I believe this
is the crux of the issue. For large codes, POOMA is a pig at link/compile
time (depending on the instantiation model) and there were various possibly
non-obvious factorings made along the way in order to try to keep this under
control.

	Jim

------------------------------------------------------------------------
James A. Crotinger                           email:     jimc at numerix.com
NumeriX, LLC                                 phone:  (505) 424-4477 x104
2960 Rodeo Park Dr. W.
Santa Fe, NM 87505
 

> -----Original Message-----
> From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
> Sent: Tuesday, March 02, 2004 9:54 AM
> To: Jeffrey D. Oldham
> Cc: James Crotinger; 'pooma-dev at pooma.codesourcery.com'
> Subject: Re: [pooma-dev] AltView* classes
> 
> Jeffrey D. Oldham wrote:
> >
> > James Crotinger wrote:
> >
> >> Hi Richard,
> >>
> >> This tickled a neuron the other day, but I couldn't recall the details.
> >>
> >> The AltView classes were put in to reduce link times and sizes for
> >> large codes. The classes that have enums end up having a link-time
> >> cost, both in space and time. I believe this refactoring was done to
> >> reduce the cardinality of classes having the "sv" enum. My
> >> recollection is that this, and other similar "optimizations", had a
> >> pretty substantial impact on link-time for Blanca. Unless these are
> >> hurting something else, I would tend to leave them in.
> 
> It seems they are only used for return type creation which hinted me
> that it may have beed a compiler bug workaround (so does the CVS
> histroy).  As an optimization this looks worthless at it just adds
> classes to parse. No?
> 
> 
> > The POOMA CVS repository history goes back to at least 1998 March.  For
> > example, see the log for src/Array/Array.h.  This log gives an entry for
> > AltView0 and AltView1Implementation:
> >
> > revision 1.141
> > date: 2001/05/25 17:42:48;  author: oldham;  state: Exp;  lines: +47 -6
> > branches:  1.141.4;
> > 2001-05-25  Jeffrey D. Oldham <oldham at codesourcery.com>
> >     * Array/Array.h (View0): Modify initial comment to indicate
> >     changes should also be made to AltView0.
> >     (AltView0): New class to avoid explicit instantiation problems.
> 
> The same comment is above the classes in the source, but it's not very
> helpful in trying to figure out what these problems are/were.
> 
> It's in my tree now, so I won't forget about it at least until the next
> treediff to CVS.
> 
> Richard.
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From jcrotinger at proximation.com  Tue Mar  2 17:05:55 2004
From: jcrotinger at proximation.com (James Crotinger)
Date: Tue, 2 Mar 2004 10:05:55 -0700 
Subject: [pooma-dev] AltView* classes
Message-ID: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com>

OK - cool. Thanks for chipping in Dave. You're neurons are obviously less
rusty than mine. :)

	Jim

------------------------------------------------------------------------
James A. Crotinger                           email:     jimc at numerix.com
NumeriX, LLC                                 phone:  (505) 424-4477 x104
2960 Rodeo Park Dr. W.
Santa Fe, NM 87505
 

> -----Original Message-----
> From: Dave Nystrom [mailto:wdn at lanl.gov]
> Sent: Tuesday, March 02, 2004 10:00 AM
> To: James Crotinger
> Cc: 'Richard Guenther'; 'pooma-dev at pooma.codesourcery.com'; 'Jeffrey D.
> Oldham'; John Hall; Dave Nystrom; Dave Nystrom
> Subject: RE: [pooma-dev] AltView* classes
> 
> These AltView classes were put in by Jeffrey Oldham to fix a problem that
> I
> was having trying to explicitly instantiate all the Pooma classes and
> functions that Blanca code was using.  Basically, the way the Pooma 2
> Field
> class was originally written, we were getting one of these "sv" enums
> instantiated for every unique expression which we had in our source code
> base.  I was unable to explicitly instantiate these "sv" enums the way the
> code was originally written because of some issue which Arch Robison of
> Kuck
> and Associates (now Intel) identified - basically the code in it's
> original
> form violated some corner case of the C++ standard according to Arch.
> Jeffrey fixed this problem by adding the AltView class and then I was able
> to
> perform the explicit instantiations that I needed.
> 
> However, I believe Jeffrey or someone else has gone through the code and
> replaced the "sv" enums with some other construct which does not have the
> explicit instantiation difficulties that the "sv" enums had.  So, I think
> that it is probably okay to remove the AltView classes and that this would
> clean up the code considerably.  I may revisit all this explicit
> instantiation stuff sometime in the not to distant future on a hobby basis
> (weird hobby, huh) and if I encounter difficulties being able to
> explicitly
> instantiate anything, I could then raise it as an issue at that time.
> 
> In summary, the AltView classes were added by Jeffrey to fix an explicit
> instantiation problem that I think no longer exists and I am in favor of
> now
> removing them in the interest of cleaning up the code as much as possible.
> 
> --
> Dave Nystrom			email: wdn at lanl.gov
> LANL X-2			phone: 505-667-7913	fax: 505-665-2227
> 
> James Crotinger writes:
>  > Hi Richard,
>  >
>  > This tickled a neuron the other day, but I couldn't recall the details.
>  >
>  > The AltView classes were put in to reduce link times and sizes for
> large
>  > codes. The classes that have enums end up having a link-time cost, both
> in
>  > space and time. I believe this refactoring was done to reduce the
>  > cardinality of classes having the "sv" enum. My recollection is that
> this,
>  > and other similar "optimizations", had a pretty substantial impact on
>  > link-time for Blanca. Unless these are hurting something else, I would
> tend
>  > to leave them in.
>  >
>  > Does the CodeSourcery CVS repository have complete CVS history? (i.e.
> did we
>  > copy the repository, or just the head version?) This should have been
> easy
>  > to determine via CVS.
>  >
>  > 	Jim
>  >
>  > -----------------------------------------------------------------------
> -
>  > James A. Crotinger                           email:
> jimc at numerix.com
>  > NumeriX, LLC                                 phone:  (505) 424-4477
> x104
>  > 2960 Rodeo Park Dr. W.
>  > Santa Fe, NM 87505
>  >
>  >
>  > > -----Original Message-----
>  > > From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
>  > > Sent: Tuesday, March 02, 2004 3:29 AM
>  > > To: pooma-dev at pooma.codesourcery.com
>  > > Cc: Jeffrey D. Oldham
>  > > Subject: Re: [pooma-dev] AltView* classes
>  > >
>  > > On Tue, 2 Mar 2004, Richard Guenther wrote:
>  > >
>  > > > On Fri, 27 Feb 2004, Richard Guenther wrote:
>  > > >
>  > > > > Hi!
>  > > > >
>  > > > > Does anyone remember the exact reason for the existance of the
>  > > AltView*
>  > > > > classes in Array.h and Field.h?  Removing them and fixing their
> usage
>  > > to
>  > > > > use View* seems to work (full test with gcc 3.3 and 3.4 in
> progress).
>  > > >
>  > > > Testing completed with no new failures.  Would it be ok to remove
> those
>  > > > AltView* classes?
>  > >
>  > > Which would be...
>  > >
>  > > Ok?
>  > >
>  > > Richard.
>  > >
>  > >
>  > > 2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>
>  > >
>  > > 	* src/Array/Array.h: remove all traces of AltView0 class.
>  > > 	src/Field/Field.h: remove all traces of AltView1 and
>  > > 	AltView1Implementation classes.
>  > >
>  > > ===== Array/Array.h 1.14 vs edited =====
>  > > --- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
>  > > +++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
>  > > @@ -649,8 +649,6 @@
>  > >  // an existing engine cannot be any kind of slice domain.
>  > >  // Also, bounds checking would make no sense because it would
>  > >  // reduce to contains(a.domain(), a.domain());
>  > > -//
>  > > -// Any changes to this class should also be made to AltView0.
>  > >
>  > >  template<int Dim, class T, class EngineTag>
>  > >  struct View0<Array<Dim, T, EngineTag> >
>  > > @@ -695,41 +693,6 @@
>  > >      }
>  > >  };
>  > >
>  > > -// AltView0 avoids an instantiation problem that arises when two
>  > > -// classes use each other.  This class's definition should be
> exactly
>  > > -// the same as View0 except omitting member functions.
>  > > -//
>  > > -// Do NOT explicitly instantiate this class.
>  > > -
>  > > -template<class ArrayTag>
>  > > -struct AltView0;
>  > > -
>  > > -template<int Dim, class T, class EngineTag>
>  > > -struct AltView0<Array<Dim, T, EngineTag> >
>  > > -{
>  > > -  // Convenience typedef for the thing we're taking a view of.
>  > > -
>  > > -  typedef Array<Dim, T, EngineTag> Subject_t;
>  > > -
>  > > -  // Deduce domains for the output type.
>  > > -  // At some point, we need to fix NewDomain1; until then, use
>  > > -  // the temporary version from Array.h.
>  > > -
>  > > -  typedef typename Subject_t::Engine_t Engine_t;
>  > > -  typedef typename Subject_t::Domain_t Domain_t;
>  > > -
>  > > -  // Deduce the template parameters for the output type.
>  > > -
>  > > -  typedef typename NewEngine<Engine_t, Domain_t>::Type_t
> NewEngine_t;
>  > > -  enum { newDim = NewEngine_t::dimensions };
>  > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
>  > > -
>  > > -  // The output types.
>  > > -
>  > > -  typedef Array<newDim, T, NewEngineTag_t> Type_t;
>  > > -  typedef Type_t ReadType_t;
>  > > -};
>  > > -
>  > >  template<int Dim, class T, class EngineTag>
>  > >  struct View1<Array<Dim, T, EngineTag>, int>
>  > >  {
>  > > @@ -1864,7 +1827,7 @@
>  > >    /// A zero-argument version of operator(), which takes a view of
>  > >    /// array's domain, is also supplied.
>  > >    //@{
>  > > -  typename AltView0<This_t>::ReadType_t
>  > > +  typename View0<This_t>::ReadType_t
>  > >    read() const
>  > >      {
>  > >        typedef View0<This_t> Ret_t;
>  > > @@ -1934,7 +1897,7 @@
>  > >        return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
>  > >      }
>  > >
>  > > -  typename AltView0<This_t>::Type_t
>  > > +  typename View0<This_t>::Type_t
>  > >    operator()() const
>  > >      {
>  > >        typedef View0<This_t> Ret_t;
>  > > ===== Field/Field.h 1.14 vs edited =====
>  > > --- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
>  > > +++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
>  > > @@ -269,9 +269,6 @@
>  > >   * View1Implementation<Field, D, SV> specialization for indexing a
> field
>  > >   * with a single domain. There is a single-valued version (SV ==
> true)
>  > >   * and a multi-valued version (SV == false).
>  > > - *
>  > > - * Any changes to View1Implementation should also be made to
>  > > - * AltView1Implementation.
>  > >   */
>  > >
>  > >  // Single-valued version. Handles scalars and Locs.
>  > > @@ -508,62 +505,7 @@
>  > >
>  > >
>  > >  /**
>  > > - * AltView1Implementation avoids an instantiation problem that
> arises
>  > > when two
>  > > - * classes use each other.  This class's definition should be
> exactly
>  > > - * the same as View1Implementation except omitting member functions.
>  > > - *
>  > > - * Do NOT explicitly instantiate this class.
>  > > - */
>  > > -
>  > > -// Single-valued version. Handles scalars and Locs.
>  > > -
>  > > -template<class Subject, class Domain, bool SV>
>  > > -struct AltView1Implementation;
>  > > -
>  > > -template<class Mesh, class T, class EngineTag, class Domain>
>  > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
> true>
>  > > -{
>  > > -  // Convenience typedef for the thing we're taking a view of.
>  > > -
>  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
>  > > -
>  > > -  // The return types are pretty simple here.
>  > > -
>  > > -  typedef typename Subject_t::Element_t ReadType_t;
>  > > -  typedef typename Subject_t::ElementRef_t Type_t;
>  > > -};
>  > > -
>  > > -template<class Mesh, class T, class EngineTag, class Domain>
>  > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
> false>
>  > > -{
>  > > -  // Convenience typedef for the thing we're taking a view of.
>  > > -
>  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
>  > > -
>  > > -  // Deduce domains for the output type.
>  > > -
>  > > -  typedef typename Subject_t::Engine_t Engine_t;
>  > > -  typedef typename NewEngine<Engine_t, Domain>::Type_t NewEngine_t;
>  > > -  typedef typename NewEngine_t::Element_t NewT_t;
>  > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
>  > > -
>  > > -  // Deduce the new Mesh.
>  > > -
>  > > -  typedef typename
>  > > -    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
>  > > -      NewMeshTag_t;
>  > > -
>  > > -  // The output types.
>  > > -
>  > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
>  > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
>  > > -};
>  > > -
>  > > -
>  > > -/**
>  > >   * View1<Field, S1> specialization for indexing a field with a
> single
>  > > domain.
>  > > - *
>  > > - * Any changes to View1 should also be made to AltView1.
>  > >   */
>  > >
>  > >  template<class Mesh, class T, class EngineTag, class Sub1>
>  > > @@ -613,8 +555,6 @@
>  > >
>  > >  /**
>  > >   * View1<Field, int> specialization for indexing a field with an
> int.
>  > > - *
>  > > - * Any changes to View1 should also be made to AltView1.
>  > >   */
>  > >
>  > >  template<class Mesh, class T, class EngineTag>
>  > > @@ -658,71 +598,6 @@
>  > >
>  > >
>  > >  /**
>  > > - * AltView1 avoids an instantiation problem that arises when two
>  > > - * classes use each other.  This class's definition should be
> exactly
>  > > - * the same as View1 except omitting member functions.
>  > > - *
>  > > - * Do NOT explicitly instantiate this class.
>  > > - */
>  > > -
>  > > -template<class FieldTag, class DomainTag>
>  > > -struct AltView1;
>  > > -
>  > > -template<class Mesh, class T, class EngineTag, class Sub1>
>  > > -struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
>  > > -{
>  > > -  // Convenience typedef for the thing we're taking a view of.
>  > > -
>  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
>  > > -
>  > > -  // Deduce domains for the output type.
>  > > -  // At some point, we need to fix NewDomain1; until then, use
>  > > -  // the temporary version from NewDomain.h.
>  > > -
>  > > -  typedef typename Subject_t::Domain_t Domain_t;
>  > > -  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
>  > > -  typedef typename NewDomain_t::SliceType_t SDomain_t;
>  > > -
>  > > -  // Deduce appropriate version of implementation to dispatch to.
>  > > -
>  > > -  enum { sv = DomainTraits<SDomain_t>::singleValued };
>  > > -  typedef AltView1Implementation<Subject_t, SDomain_t, sv>
> Dispatch_t;
>  > > -
>  > > -  // The optimized domain combiner.
>  > > -
>  > > -  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
>  > > -
>  > > -  // The return types.
>  > > -
>  > > -  typedef typename Dispatch_t::ReadType_t ReadType_t;
>  > > -  typedef typename Dispatch_t::Type_t Type_t;
>  > > -};
>  > > -
>  > > -
>  > > -/**
>  > > - * AltView1 avoids an instantiation problem that arises when two
>  > > - * classes use each other.  This class's definition should be
> exactly
>  > > - * the same as View1 except omitting member functions.
>  > > - *
>  > > - * Do NOT explicitly instantiate this class.
>  > > - */
>  > > -
>  > > -template<class Mesh, class T, class EngineTag>
>  > > -struct AltView1<Field<Mesh, T, EngineTag>, int>
>  > > -{
>  > > -  // Convenience typedef for the thing we're taking a view of.
>  > > -
>  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
>  > > -
>  > > -  // The return types.
>  > > -
>  > > -  typedef typename Subject_t::Element_t ReadType_t;
>  > > -  typedef typename Subject_t::ElementRef_t Type_t;
>  > > -
>  > > -};
>  > > -
>  > > -
>  > > -/**
>  > >   * View2<Field, S1, S2> specialization for indexing a field with two
>  > >   * domains.
>  > >   */
>  > > @@ -1455,14 +1330,14 @@
>  > >    /// point fields the viewing domain is an actual centering domain.
>  > >    //@{
>  > >
>  > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
>  > > +  inline typename View1<This_t, Domain_t>::ReadType_t
>  > >    read() const
>  > >      {
>  > >        typedef View1<This_t, Domain_t> Ret_t;
>  > >        return Ret_t::makeRead(*this, physicalDomain());
>  > >      }
>  > >
>  > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
>  > > +  inline typename View1<This_t, Domain_t>::ReadType_t
>  > >    readAll() const
>  > >      {
>  > >        typedef View1<This_t, Domain_t> Ret_t;
>  > > @@ -1470,7 +1345,7 @@
>  > >      }
>  > >
>  > >    template<class Sub1>
>  > > -  inline typename AltView1<This_t, Sub1>::ReadType_t
>  > > +  inline typename View1<This_t, Sub1>::ReadType_t
>  > >    read(const Sub1 &s1) const
>  > >      {
>  > >        typedef View1<This_t, Sub1> Ret_t;
>  > > @@ -1493,14 +1368,14 @@
>  > >        return Ret_t::makeRead(*this, s1, s2, s3);
>  > >      }
>  > >
>  > > -  inline typename AltView1<This_t, Domain_t>::Type_t
>  > > +  inline typename View1<This_t, Domain_t>::Type_t
>  > >    operator()() const
>  > >      {
>  > >        typedef View1<This_t, Domain_t> Ret_t;
>  > >        return Ret_t::make(*this, physicalDomain());
>  > >      }
>  > >
>  > > -  inline typename AltView1<This_t, Domain_t>::Type_t
>  > > +  inline typename View1<This_t, Domain_t>::Type_t
>  > >    all() const
>  > >      {
>  > >        typedef View1<This_t, Domain_t> Ret_t;
>  > > @@ -1508,7 +1383,7 @@
>  > >      }
>  > >
>  > >    template<class Sub1>
>  > > -  inline typename AltView1<This_t, Sub1>::Type_t
>  > > +  inline typename View1<This_t, Sub1>::Type_t
>  > >    operator()(const Sub1 &s1) const
>  > >      {
>  > >        typedef View1<This_t, Sub1> Ret_t;
>  > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
>  > <HTML>
>  > <HEAD>
>  > <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
>  > <META NAME="Generator" CONTENT="MS Exchange Server version
> 5.5.2653.12">
>  > <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
>  > </HEAD>
>  > <BODY>
>  >
>  > <P><FONT SIZE=2>Hi Richard,</FONT>
>  > </P>
>  >
>  > <P><FONT SIZE=2>This tickled a neuron the other day, but I couldn't
> recall the details.</FONT>
>  > </P>
>  >
>  > <P><FONT SIZE=2>The AltView classes were put in to reduce link times
> and sizes for large codes. The classes that have enums end up having a
> link-time cost, both in space and time. I believe this refactoring was
> done to reduce the cardinality of classes having the &quot;sv&quot; enum.
> My recollection is that this, and other similar &quot;optimizations&quot;,
> had a pretty substantial impact on link-time for Blanca. Unless these are
> hurting something else, I would tend to leave them in. </FONT></P>
>  >
>  > <P><FONT SIZE=2>Does the CodeSourcery CVS repository have complete CVS
> history? (i.e. did we copy the repository, or just the head version?) This
> should have been easy to determine via CVS. </FONT></P>
>  >
>  > <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>Jim</FONT>
>  > </P>
>  >
>  > <P><FONT SIZE=2>-------------------------------------------------------
> -----------------</FONT>
>  > <BR><FONT SIZE=2>James A.
> Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
> ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&
> nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp; jimc at numerix.com</FONT>
>  > <BR><FONT SIZE=2>NumeriX,
> LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
> ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&
> nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505) 424-
> 4477 x104</FONT>
>  > <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
>  > <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
>  > <BR><FONT SIZE=2>&nbsp;</FONT>
>  > </P>
>  >
>  > <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
>  > <BR><FONT SIZE=2>&gt; From: Richard Guenther [<A
> HREF="mailto:rguenth at tat.physik.uni-
> tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
>  > <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 3:29 AM</FONT>
>  > <BR><FONT SIZE=2>&gt; To: pooma-dev at pooma.codesourcery.com</FONT>
>  > <BR><FONT SIZE=2>&gt; Cc: Jeffrey D. Oldham</FONT>
>  > <BR><FONT SIZE=2>&gt; Subject: Re: [pooma-dev] AltView* classes</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; On Tue, 2 Mar 2004, Richard Guenther
> wrote:</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; On Fri, 27 Feb 2004, Richard Guenther
> wrote:</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; &gt; Hi!</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; &gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; &gt; Does anyone remember the exact reason
> for the existance of the</FONT>
>  > <BR><FONT SIZE=2>&gt; AltView*</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; &gt; classes in Array.h and Field.h?&nbsp;
> Removing them and fixing their usage</FONT>
>  > <BR><FONT SIZE=2>&gt; to</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; &gt; use View* seems to work (full test with
> gcc 3.3 and 3.4 in progress).</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; Testing completed with no new
> failures.&nbsp; Would it be ok to remove those</FONT>
>  > <BR><FONT SIZE=2>&gt; &gt; AltView* classes?</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; Which would be...</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; Ok?</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; Richard.</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; 2004Mar02&nbsp; Richard Guenther
> &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *
> src/Array/Array.h: remove all traces of AltView0 class.</FONT>
>  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src/Field/Field.h:
> remove all traces of AltView1 and</FONT>
>  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> AltView1Implementation classes.</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; ===== Array/Array.h 1.14 vs edited =====</FONT>
>  > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16 15:19:57
> 2003</FONT>
>  > <BR><FONT SIZE=2>&gt; +++
> edited/Array/Array.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
> 11:24:14 2004</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -649,8 +649,6 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; // an existing engine cannot be any kind of
> slice domain.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; // Also, bounds checking would make no
> sense because it would</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; // reduce to contains(a.domain(),
> a.domain());</FONT>
>  > <BR><FONT SIZE=2>&gt; -//</FONT>
>  > <BR><FONT SIZE=2>&gt; -// Any changes to this class should also be made
> to AltView0.</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
> EngineTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; struct View0&lt;Array&lt;Dim, T,
> EngineTag&gt; &gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -695,41 +693,6 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; };</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -// AltView0 avoids an instantiation problem that
> arises when two</FONT>
>  > <BR><FONT SIZE=2>&gt; -// classes use each other.&nbsp; This class's
> definition should be exactly</FONT>
>  > <BR><FONT SIZE=2>&gt; -// the same as View0 except omitting member
> functions.</FONT>
>  > <BR><FONT SIZE=2>&gt; -//</FONT>
>  > <BR><FONT SIZE=2>&gt; -// Do NOT explicitly instantiate this
> class.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class ArrayTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView0;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;int Dim, class T, class
> EngineTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView0&lt;Array&lt;Dim, T,
> EngineTag&gt; &gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
> we're taking a view of.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;Dim, T, EngineTag&gt;
> Subject_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
> type.</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
> NewDomain1; until then, use</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
> Array.h.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
> Engine_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
> Domain_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the template parameters for the
> output type.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t,
> Domain_t&gt;::Type_t NewEngine_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; enum { newDim = NewEngine_t::dimensions
> };</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
> NewEngineTag_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;newDim, T,
> NewEngineTag_t&gt; Type_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Type_t ReadType_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -};</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
> EngineTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; struct View1&lt;Array&lt;Dim, T,
> EngineTag&gt;, int&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1864,7 +1827,7 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// A zero-argument version of
> operator(), which takes a view of</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// array's domain, is also
> supplied.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typename
> AltView0&lt;This_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; typename
> View0&lt;This_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View0&lt;This_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1934,7 +1897,7 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
> Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typename
> AltView0&lt;This_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; typename
> View0&lt;This_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View0&lt;This_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; ===== Field/Field.h 1.14 vs edited =====</FONT>
>  > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16 15:20:00
> 2003</FONT>
>  > <BR><FONT SIZE=2>&gt; +++
> edited/Field/Field.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
> 11:25:22 2004</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -269,9 +269,6 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1Implementation&lt;Field, D,
> SV&gt; specialization for indexing a field</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * with a single domain. There is a
> single-valued version (SV == true)</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * and a multi-valued version (SV ==
> false).</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Any changes to View1Implementation should
> also be made to</FONT>
>  > <BR><FONT SIZE=2>&gt; - * AltView1Implementation.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; // Single-valued version. Handles scalars
> and Locs.</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -508,62 +505,7 @@</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>  > <BR><FONT SIZE=2>&gt; - * AltView1Implementation avoids an
> instantiation problem that arises</FONT>
>  > <BR><FONT SIZE=2>&gt; when two</FONT>
>  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
> definition should be exactly</FONT>
>  > <BR><FONT SIZE=2>&gt; - * the same as View1Implementation except
> omitting member functions.</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
> class.</FONT>
>  > <BR><FONT SIZE=2>&gt; - */</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -// Single-valued version. Handles scalars and
> Locs.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class Subject, class Domain, bool
> SV&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
> EngineTag, class Domain&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh,
> T, EngineTag&gt;, Domain, true&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
> we're taking a view of.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
> Subject_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types are pretty simple
> here.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
> ReadType_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t
> Type_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -};</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
> EngineTag, class Domain&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh,
> T, EngineTag&gt;, Domain, false&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
> we're taking a view of.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
> Subject_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
> type.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
> Engine_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t,
> Domain&gt;::Type_t NewEngine_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Element_t
> NewT_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
> NewEngineTag_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the new Mesh.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;
> NewMeshTag&lt;NewEngine_t::dimensions, Mesh, Domain&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> NewMeshTag_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
> NewEngineTag_t&gt; ReadType_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
> NewEngineTag_t&gt; Type_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -};</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -/**</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, S1&gt;
> specialization for indexing a field with a single</FONT>
>  > <BR><FONT SIZE=2>&gt; domain.</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to
> AltView1.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
> EngineTag, class Sub1&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -613,8 +555,6 @@</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, int&gt;
> specialization for indexing a field with an int.</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to
> AltView1.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
> EngineTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -658,71 +598,6 @@</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>  > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that
> arises when two</FONT>
>  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
> definition should be exactly</FONT>
>  > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
> functions.</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
> class.</FONT>
>  > <BR><FONT SIZE=2>&gt; - */</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class FieldTag, class
> DomainTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
> EngineTag, class Sub1&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
> EngineTag&gt;, Sub1&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
> we're taking a view of.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
> Subject_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
> type.</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
> NewDomain1; until then, use</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
> NewDomain.h.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
> Domain_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef TemporaryNewDomain1&lt;Domain_t,
> Sub1&gt; NewDomain_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewDomain_t::SliceType_t
> SDomain_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce appropriate version of
> implementation to dispatch to.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; enum { sv =
> DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef
> AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt; Dispatch_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The optimized domain combiner.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef CombineDomainOpt&lt;NewDomain_t,
> sv&gt; Combine_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::ReadType_t
> ReadType_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::Type_t
> Type_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -};</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -/**</FONT>
>  > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that
> arises when two</FONT>
>  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
> definition should be exactly</FONT>
>  > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
> functions.</FONT>
>  > <BR><FONT SIZE=2>&gt; - *</FONT>
>  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
> class.</FONT>
>  > <BR><FONT SIZE=2>&gt; - */</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
> EngineTag&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
> EngineTag&gt;, int&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -{</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
> we're taking a view of.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
> Subject_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
> ReadType_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t
> Type_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -};</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -</FONT>
>  > <BR><FONT SIZE=2>&gt; -/**</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View2&lt;Field, S1, S2&gt;
> specialization for indexing a field with two</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * domains.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1455,14 +1330,14 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// point fields the viewing
> domain is an actual centering domain.</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Domain_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Domain_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
> Ret_t::makeRead(*this, physicalDomain());</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Domain_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Domain_t&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; readAll() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1470,7 +1345,7 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
> Sub1&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Sub1&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Sub1&gt;::ReadType_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read(const Sub1 &amp;s1)
> const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1493,14 +1368,14 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
> Ret_t::makeRead(*this, s1, s2, s3);</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Domain_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Domain_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
> Ret_t::make(*this, physicalDomain());</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Domain_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Domain_t&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; all() const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>  > <BR><FONT SIZE=2>&gt; @@ -1508,7 +1383,7 @@</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>  > <BR><FONT SIZE=2>&gt; </FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
> Sub1&gt;</FONT>
>  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
> Sub1&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
> Sub1&gt;::Type_t</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()(const Sub1 &amp;s1)
> const</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>  > </P>
>  >
>  > </BODY>
>  > </HTML>
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From wdn at lanl.gov  Tue Mar  2 17:16:54 2004
From: wdn at lanl.gov (Dave Nystrom)
Date: Tue, 2 Mar 2004 10:16:54 -0700
Subject: [pooma-dev] AltView* classes
In-Reply-To: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com>
Message-ID: <16452.49542.996541.986692@bedell.lanl.gov>

No problem.  I think my neurons are less rusty because of my perverse
hobby:-).  I've actually compiled the Blanca Demo stuff in the last year and
I try to keep up with evolution of Pooma 2 with the thought that I will
sometime get back to using it.  John, Don and Jean have actually been doing
some work on the source code base in the last year.

Also, the Blanca Demo project and it's progeny is the only Blanca related
source code base that to my knowledge ever used Pooma 2.  And supposedly, the
Blanca project is dead and unlikely to use anything that we ever did.

-- 
Dave Nystrom			email: wdn at lanl.gov
LANL X-2			phone: 505-667-7913	fax: 505-665-2227

James Crotinger writes:
 > OK - cool. Thanks for chipping in Dave. You're neurons are obviously less
 > rusty than mine. :)
 > 
 > 	Jim
 > 
 > ------------------------------------------------------------------------
 > James A. Crotinger                           email:     jimc at numerix.com
 > NumeriX, LLC                                 phone:  (505) 424-4477 x104
 > 2960 Rodeo Park Dr. W.
 > Santa Fe, NM 87505
 >  
 > 
 > > -----Original Message-----
 > > From: Dave Nystrom [mailto:wdn at lanl.gov]
 > > Sent: Tuesday, March 02, 2004 10:00 AM
 > > To: James Crotinger
 > > Cc: 'Richard Guenther'; 'pooma-dev at pooma.codesourcery.com'; 'Jeffrey D.
 > > Oldham'; John Hall; Dave Nystrom; Dave Nystrom
 > > Subject: RE: [pooma-dev] AltView* classes
 > > 
 > > These AltView classes were put in by Jeffrey Oldham to fix a problem that
 > > I
 > > was having trying to explicitly instantiate all the Pooma classes and
 > > functions that Blanca code was using.  Basically, the way the Pooma 2
 > > Field
 > > class was originally written, we were getting one of these "sv" enums
 > > instantiated for every unique expression which we had in our source code
 > > base.  I was unable to explicitly instantiate these "sv" enums the way the
 > > code was originally written because of some issue which Arch Robison of
 > > Kuck
 > > and Associates (now Intel) identified - basically the code in it's
 > > original
 > > form violated some corner case of the C++ standard according to Arch.
 > > Jeffrey fixed this problem by adding the AltView class and then I was able
 > > to
 > > perform the explicit instantiations that I needed.
 > > 
 > > However, I believe Jeffrey or someone else has gone through the code and
 > > replaced the "sv" enums with some other construct which does not have the
 > > explicit instantiation difficulties that the "sv" enums had.  So, I think
 > > that it is probably okay to remove the AltView classes and that this would
 > > clean up the code considerably.  I may revisit all this explicit
 > > instantiation stuff sometime in the not to distant future on a hobby basis
 > > (weird hobby, huh) and if I encounter difficulties being able to
 > > explicitly
 > > instantiate anything, I could then raise it as an issue at that time.
 > > 
 > > In summary, the AltView classes were added by Jeffrey to fix an explicit
 > > instantiation problem that I think no longer exists and I am in favor of
 > > now
 > > removing them in the interest of cleaning up the code as much as possible.
 > > 
 > > --
 > > Dave Nystrom			email: wdn at lanl.gov
 > > LANL X-2			phone: 505-667-7913	fax: 505-665-2227
 > > 
 > > James Crotinger writes:
 > >  > Hi Richard,
 > >  >
 > >  > This tickled a neuron the other day, but I couldn't recall the details.
 > >  >
 > >  > The AltView classes were put in to reduce link times and sizes for
 > > large
 > >  > codes. The classes that have enums end up having a link-time cost, both
 > > in
 > >  > space and time. I believe this refactoring was done to reduce the
 > >  > cardinality of classes having the "sv" enum. My recollection is that
 > > this,
 > >  > and other similar "optimizations", had a pretty substantial impact on
 > >  > link-time for Blanca. Unless these are hurting something else, I would
 > > tend
 > >  > to leave them in.
 > >  >
 > >  > Does the CodeSourcery CVS repository have complete CVS history? (i.e.
 > > did we
 > >  > copy the repository, or just the head version?) This should have been
 > > easy
 > >  > to determine via CVS.
 > >  >
 > >  > 	Jim
 > >  >
 > >  > -----------------------------------------------------------------------
 > > -
 > >  > James A. Crotinger                           email:
 > > jimc at numerix.com
 > >  > NumeriX, LLC                                 phone:  (505) 424-4477
 > > x104
 > >  > 2960 Rodeo Park Dr. W.
 > >  > Santa Fe, NM 87505
 > >  >
 > >  >
 > >  > > -----Original Message-----
 > >  > > From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
 > >  > > Sent: Tuesday, March 02, 2004 3:29 AM
 > >  > > To: pooma-dev at pooma.codesourcery.com
 > >  > > Cc: Jeffrey D. Oldham
 > >  > > Subject: Re: [pooma-dev] AltView* classes
 > >  > >
 > >  > > On Tue, 2 Mar 2004, Richard Guenther wrote:
 > >  > >
 > >  > > > On Fri, 27 Feb 2004, Richard Guenther wrote:
 > >  > > >
 > >  > > > > Hi!
 > >  > > > >
 > >  > > > > Does anyone remember the exact reason for the existance of the
 > >  > > AltView*
 > >  > > > > classes in Array.h and Field.h?  Removing them and fixing their
 > > usage
 > >  > > to
 > >  > > > > use View* seems to work (full test with gcc 3.3 and 3.4 in
 > > progress).
 > >  > > >
 > >  > > > Testing completed with no new failures.  Would it be ok to remove
 > > those
 > >  > > > AltView* classes?
 > >  > >
 > >  > > Which would be...
 > >  > >
 > >  > > Ok?
 > >  > >
 > >  > > Richard.
 > >  > >
 > >  > >
 > >  > > 2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>
 > >  > >
 > >  > > 	* src/Array/Array.h: remove all traces of AltView0 class.
 > >  > > 	src/Field/Field.h: remove all traces of AltView1 and
 > >  > > 	AltView1Implementation classes.
 > >  > >
 > >  > > ===== Array/Array.h 1.14 vs edited =====
 > >  > > --- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
 > >  > > +++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
 > >  > > @@ -649,8 +649,6 @@
 > >  > >  // an existing engine cannot be any kind of slice domain.
 > >  > >  // Also, bounds checking would make no sense because it would
 > >  > >  // reduce to contains(a.domain(), a.domain());
 > >  > > -//
 > >  > > -// Any changes to this class should also be made to AltView0.
 > >  > >
 > >  > >  template<int Dim, class T, class EngineTag>
 > >  > >  struct View0<Array<Dim, T, EngineTag> >
 > >  > > @@ -695,41 +693,6 @@
 > >  > >      }
 > >  > >  };
 > >  > >
 > >  > > -// AltView0 avoids an instantiation problem that arises when two
 > >  > > -// classes use each other.  This class's definition should be
 > > exactly
 > >  > > -// the same as View0 except omitting member functions.
 > >  > > -//
 > >  > > -// Do NOT explicitly instantiate this class.
 > >  > > -
 > >  > > -template<class ArrayTag>
 > >  > > -struct AltView0;
 > >  > > -
 > >  > > -template<int Dim, class T, class EngineTag>
 > >  > > -struct AltView0<Array<Dim, T, EngineTag> >
 > >  > > -{
 > >  > > -  // Convenience typedef for the thing we're taking a view of.
 > >  > > -
 > >  > > -  typedef Array<Dim, T, EngineTag> Subject_t;
 > >  > > -
 > >  > > -  // Deduce domains for the output type.
 > >  > > -  // At some point, we need to fix NewDomain1; until then, use
 > >  > > -  // the temporary version from Array.h.
 > >  > > -
 > >  > > -  typedef typename Subject_t::Engine_t Engine_t;
 > >  > > -  typedef typename Subject_t::Domain_t Domain_t;
 > >  > > -
 > >  > > -  // Deduce the template parameters for the output type.
 > >  > > -
 > >  > > -  typedef typename NewEngine<Engine_t, Domain_t>::Type_t
 > > NewEngine_t;
 > >  > > -  enum { newDim = NewEngine_t::dimensions };
 > >  > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
 > >  > > -
 > >  > > -  // The output types.
 > >  > > -
 > >  > > -  typedef Array<newDim, T, NewEngineTag_t> Type_t;
 > >  > > -  typedef Type_t ReadType_t;
 > >  > > -};
 > >  > > -
 > >  > >  template<int Dim, class T, class EngineTag>
 > >  > >  struct View1<Array<Dim, T, EngineTag>, int>
 > >  > >  {
 > >  > > @@ -1864,7 +1827,7 @@
 > >  > >    /// A zero-argument version of operator(), which takes a view of
 > >  > >    /// array's domain, is also supplied.
 > >  > >    //@{
 > >  > > -  typename AltView0<This_t>::ReadType_t
 > >  > > +  typename View0<This_t>::ReadType_t
 > >  > >    read() const
 > >  > >      {
 > >  > >        typedef View0<This_t> Ret_t;
 > >  > > @@ -1934,7 +1897,7 @@
 > >  > >        return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
 > >  > >      }
 > >  > >
 > >  > > -  typename AltView0<This_t>::Type_t
 > >  > > +  typename View0<This_t>::Type_t
 > >  > >    operator()() const
 > >  > >      {
 > >  > >        typedef View0<This_t> Ret_t;
 > >  > > ===== Field/Field.h 1.14 vs edited =====
 > >  > > --- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
 > >  > > +++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
 > >  > > @@ -269,9 +269,6 @@
 > >  > >   * View1Implementation<Field, D, SV> specialization for indexing a
 > > field
 > >  > >   * with a single domain. There is a single-valued version (SV ==
 > > true)
 > >  > >   * and a multi-valued version (SV == false).
 > >  > > - *
 > >  > > - * Any changes to View1Implementation should also be made to
 > >  > > - * AltView1Implementation.
 > >  > >   */
 > >  > >
 > >  > >  // Single-valued version. Handles scalars and Locs.
 > >  > > @@ -508,62 +505,7 @@
 > >  > >
 > >  > >
 > >  > >  /**
 > >  > > - * AltView1Implementation avoids an instantiation problem that
 > > arises
 > >  > > when two
 > >  > > - * classes use each other.  This class's definition should be
 > > exactly
 > >  > > - * the same as View1Implementation except omitting member functions.
 > >  > > - *
 > >  > > - * Do NOT explicitly instantiate this class.
 > >  > > - */
 > >  > > -
 > >  > > -// Single-valued version. Handles scalars and Locs.
 > >  > > -
 > >  > > -template<class Subject, class Domain, bool SV>
 > >  > > -struct AltView1Implementation;
 > >  > > -
 > >  > > -template<class Mesh, class T, class EngineTag, class Domain>
 > >  > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
 > > true>
 > >  > > -{
 > >  > > -  // Convenience typedef for the thing we're taking a view of.
 > >  > > -
 > >  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > >  > > -
 > >  > > -  // The return types are pretty simple here.
 > >  > > -
 > >  > > -  typedef typename Subject_t::Element_t ReadType_t;
 > >  > > -  typedef typename Subject_t::ElementRef_t Type_t;
 > >  > > -};
 > >  > > -
 > >  > > -template<class Mesh, class T, class EngineTag, class Domain>
 > >  > > -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
 > > false>
 > >  > > -{
 > >  > > -  // Convenience typedef for the thing we're taking a view of.
 > >  > > -
 > >  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > >  > > -
 > >  > > -  // Deduce domains for the output type.
 > >  > > -
 > >  > > -  typedef typename Subject_t::Engine_t Engine_t;
 > >  > > -  typedef typename NewEngine<Engine_t, Domain>::Type_t NewEngine_t;
 > >  > > -  typedef typename NewEngine_t::Element_t NewT_t;
 > >  > > -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
 > >  > > -
 > >  > > -  // Deduce the new Mesh.
 > >  > > -
 > >  > > -  typedef typename
 > >  > > -    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
 > >  > > -      NewMeshTag_t;
 > >  > > -
 > >  > > -  // The output types.
 > >  > > -
 > >  > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
 > >  > > -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
 > >  > > -};
 > >  > > -
 > >  > > -
 > >  > > -/**
 > >  > >   * View1<Field, S1> specialization for indexing a field with a
 > > single
 > >  > > domain.
 > >  > > - *
 > >  > > - * Any changes to View1 should also be made to AltView1.
 > >  > >   */
 > >  > >
 > >  > >  template<class Mesh, class T, class EngineTag, class Sub1>
 > >  > > @@ -613,8 +555,6 @@
 > >  > >
 > >  > >  /**
 > >  > >   * View1<Field, int> specialization for indexing a field with an
 > > int.
 > >  > > - *
 > >  > > - * Any changes to View1 should also be made to AltView1.
 > >  > >   */
 > >  > >
 > >  > >  template<class Mesh, class T, class EngineTag>
 > >  > > @@ -658,71 +598,6 @@
 > >  > >
 > >  > >
 > >  > >  /**
 > >  > > - * AltView1 avoids an instantiation problem that arises when two
 > >  > > - * classes use each other.  This class's definition should be
 > > exactly
 > >  > > - * the same as View1 except omitting member functions.
 > >  > > - *
 > >  > > - * Do NOT explicitly instantiate this class.
 > >  > > - */
 > >  > > -
 > >  > > -template<class FieldTag, class DomainTag>
 > >  > > -struct AltView1;
 > >  > > -
 > >  > > -template<class Mesh, class T, class EngineTag, class Sub1>
 > >  > > -struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
 > >  > > -{
 > >  > > -  // Convenience typedef for the thing we're taking a view of.
 > >  > > -
 > >  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > >  > > -
 > >  > > -  // Deduce domains for the output type.
 > >  > > -  // At some point, we need to fix NewDomain1; until then, use
 > >  > > -  // the temporary version from NewDomain.h.
 > >  > > -
 > >  > > -  typedef typename Subject_t::Domain_t Domain_t;
 > >  > > -  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
 > >  > > -  typedef typename NewDomain_t::SliceType_t SDomain_t;
 > >  > > -
 > >  > > -  // Deduce appropriate version of implementation to dispatch to.
 > >  > > -
 > >  > > -  enum { sv = DomainTraits<SDomain_t>::singleValued };
 > >  > > -  typedef AltView1Implementation<Subject_t, SDomain_t, sv>
 > > Dispatch_t;
 > >  > > -
 > >  > > -  // The optimized domain combiner.
 > >  > > -
 > >  > > -  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
 > >  > > -
 > >  > > -  // The return types.
 > >  > > -
 > >  > > -  typedef typename Dispatch_t::ReadType_t ReadType_t;
 > >  > > -  typedef typename Dispatch_t::Type_t Type_t;
 > >  > > -};
 > >  > > -
 > >  > > -
 > >  > > -/**
 > >  > > - * AltView1 avoids an instantiation problem that arises when two
 > >  > > - * classes use each other.  This class's definition should be
 > > exactly
 > >  > > - * the same as View1 except omitting member functions.
 > >  > > - *
 > >  > > - * Do NOT explicitly instantiate this class.
 > >  > > - */
 > >  > > -
 > >  > > -template<class Mesh, class T, class EngineTag>
 > >  > > -struct AltView1<Field<Mesh, T, EngineTag>, int>
 > >  > > -{
 > >  > > -  // Convenience typedef for the thing we're taking a view of.
 > >  > > -
 > >  > > -  typedef Field<Mesh, T, EngineTag> Subject_t;
 > >  > > -
 > >  > > -  // The return types.
 > >  > > -
 > >  > > -  typedef typename Subject_t::Element_t ReadType_t;
 > >  > > -  typedef typename Subject_t::ElementRef_t Type_t;
 > >  > > -
 > >  > > -};
 > >  > > -
 > >  > > -
 > >  > > -/**
 > >  > >   * View2<Field, S1, S2> specialization for indexing a field with two
 > >  > >   * domains.
 > >  > >   */
 > >  > > @@ -1455,14 +1330,14 @@
 > >  > >    /// point fields the viewing domain is an actual centering domain.
 > >  > >    //@{
 > >  > >
 > >  > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
 > >  > > +  inline typename View1<This_t, Domain_t>::ReadType_t
 > >  > >    read() const
 > >  > >      {
 > >  > >        typedef View1<This_t, Domain_t> Ret_t;
 > >  > >        return Ret_t::makeRead(*this, physicalDomain());
 > >  > >      }
 > >  > >
 > >  > > -  inline typename AltView1<This_t, Domain_t>::ReadType_t
 > >  > > +  inline typename View1<This_t, Domain_t>::ReadType_t
 > >  > >    readAll() const
 > >  > >      {
 > >  > >        typedef View1<This_t, Domain_t> Ret_t;
 > >  > > @@ -1470,7 +1345,7 @@
 > >  > >      }
 > >  > >
 > >  > >    template<class Sub1>
 > >  > > -  inline typename AltView1<This_t, Sub1>::ReadType_t
 > >  > > +  inline typename View1<This_t, Sub1>::ReadType_t
 > >  > >    read(const Sub1 &s1) const
 > >  > >      {
 > >  > >        typedef View1<This_t, Sub1> Ret_t;
 > >  > > @@ -1493,14 +1368,14 @@
 > >  > >        return Ret_t::makeRead(*this, s1, s2, s3);
 > >  > >      }
 > >  > >
 > >  > > -  inline typename AltView1<This_t, Domain_t>::Type_t
 > >  > > +  inline typename View1<This_t, Domain_t>::Type_t
 > >  > >    operator()() const
 > >  > >      {
 > >  > >        typedef View1<This_t, Domain_t> Ret_t;
 > >  > >        return Ret_t::make(*this, physicalDomain());
 > >  > >      }
 > >  > >
 > >  > > -  inline typename AltView1<This_t, Domain_t>::Type_t
 > >  > > +  inline typename View1<This_t, Domain_t>::Type_t
 > >  > >    all() const
 > >  > >      {
 > >  > >        typedef View1<This_t, Domain_t> Ret_t;
 > >  > > @@ -1508,7 +1383,7 @@
 > >  > >      }
 > >  > >
 > >  > >    template<class Sub1>
 > >  > > -  inline typename AltView1<This_t, Sub1>::Type_t
 > >  > > +  inline typename View1<This_t, Sub1>::Type_t
 > >  > >    operator()(const Sub1 &s1) const
 > >  > >      {
 > >  > >        typedef View1<This_t, Sub1> Ret_t;
 > >  > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
 > >  > <HTML>
 > >  > <HEAD>
 > >  > <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
 > >  > <META NAME="Generator" CONTENT="MS Exchange Server version
 > > 5.5.2653.12">
 > >  > <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
 > >  > </HEAD>
 > >  > <BODY>
 > >  >
 > >  > <P><FONT SIZE=2>Hi Richard,</FONT>
 > >  > </P>
 > >  >
 > >  > <P><FONT SIZE=2>This tickled a neuron the other day, but I couldn't
 > > recall the details.</FONT>
 > >  > </P>
 > >  >
 > >  > <P><FONT SIZE=2>The AltView classes were put in to reduce link times
 > > and sizes for large codes. The classes that have enums end up having a
 > > link-time cost, both in space and time. I believe this refactoring was
 > > done to reduce the cardinality of classes having the &quot;sv&quot; enum.
 > > My recollection is that this, and other similar &quot;optimizations&quot;,
 > > had a pretty substantial impact on link-time for Blanca. Unless these are
 > > hurting something else, I would tend to leave them in. </FONT></P>
 > >  >
 > >  > <P><FONT SIZE=2>Does the CodeSourcery CVS repository have complete CVS
 > > history? (i.e. did we copy the repository, or just the head version?) This
 > > should have been easy to determine via CVS. </FONT></P>
 > >  >
 > >  > <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>Jim</FONT>
 > >  > </P>
 > >  >
 > >  > <P><FONT SIZE=2>-------------------------------------------------------
 > > -----------------</FONT>
 > >  > <BR><FONT SIZE=2>James A.
 > > Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
 > > ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&
 > > nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp; jimc at numerix.com</FONT>
 > >  > <BR><FONT SIZE=2>NumeriX,
 > > LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
 > > ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&
 > > nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505) 424-
 > > 4477 x104</FONT>
 > >  > <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
 > >  > <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
 > >  > <BR><FONT SIZE=2>&nbsp;</FONT>
 > >  > </P>
 > >  >
 > >  > <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
 > >  > <BR><FONT SIZE=2>&gt; From: Richard Guenther [<A
 > > HREF="mailto:rguenth at tat.physik.uni-
 > > tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
 > >  > <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 3:29 AM</FONT>
 > >  > <BR><FONT SIZE=2>&gt; To: pooma-dev at pooma.codesourcery.com</FONT>
 > >  > <BR><FONT SIZE=2>&gt; Cc: Jeffrey D. Oldham</FONT>
 > >  > <BR><FONT SIZE=2>&gt; Subject: Re: [pooma-dev] AltView* classes</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; On Tue, 2 Mar 2004, Richard Guenther
 > > wrote:</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; On Fri, 27 Feb 2004, Richard Guenther
 > > wrote:</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; &gt; Hi!</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; &gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; &gt; Does anyone remember the exact reason
 > > for the existance of the</FONT>
 > >  > <BR><FONT SIZE=2>&gt; AltView*</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; &gt; classes in Array.h and Field.h?&nbsp;
 > > Removing them and fixing their usage</FONT>
 > >  > <BR><FONT SIZE=2>&gt; to</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; &gt; use View* seems to work (full test with
 > > gcc 3.3 and 3.4 in progress).</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; Testing completed with no new
 > > failures.&nbsp; Would it be ok to remove those</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &gt; AltView* classes?</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; Which would be...</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; Ok?</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; Richard.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; 2004Mar02&nbsp; Richard Guenther
 > > &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *
 > > src/Array/Array.h: remove all traces of AltView0 class.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src/Field/Field.h:
 > > remove all traces of AltView1 and</FONT>
 > >  > <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 > > AltView1Implementation classes.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; ===== Array/Array.h 1.14 vs edited =====</FONT>
 > >  > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16 15:19:57
 > > 2003</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +++
 > > edited/Array/Array.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
 > > 11:24:14 2004</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -649,8 +649,6 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; // an existing engine cannot be any kind of
 > > slice domain.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; // Also, bounds checking would make no
 > > sense because it would</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; // reduce to contains(a.domain(),
 > > a.domain());</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -//</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// Any changes to this class should also be made
 > > to AltView0.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
 > > EngineTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; struct View0&lt;Array&lt;Dim, T,
 > > EngineTag&gt; &gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -695,41 +693,6 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; };</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// AltView0 avoids an instantiation problem that
 > > arises when two</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// classes use each other.&nbsp; This class's
 > > definition should be exactly</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// the same as View0 except omitting member
 > > functions.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -//</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// Do NOT explicitly instantiate this
 > > class.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class ArrayTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView0;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;int Dim, class T, class
 > > EngineTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView0&lt;Array&lt;Dim, T,
 > > EngineTag&gt; &gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
 > > we're taking a view of.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;Dim, T, EngineTag&gt;
 > > Subject_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
 > > type.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
 > > NewDomain1; until then, use</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
 > > Array.h.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
 > > Engine_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
 > > Domain_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the template parameters for the
 > > output type.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t,
 > > Domain_t&gt;::Type_t NewEngine_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; enum { newDim = NewEngine_t::dimensions
 > > };</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
 > > NewEngineTag_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;newDim, T,
 > > NewEngineTag_t&gt; Type_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Type_t ReadType_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -};</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
 > > EngineTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; struct View1&lt;Array&lt;Dim, T,
 > > EngineTag&gt;, int&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1864,7 +1827,7 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// A zero-argument version of
 > > operator(), which takes a view of</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// array's domain, is also
 > > supplied.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typename
 > > AltView0&lt;This_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; typename
 > > View0&lt;This_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View0&lt;This_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1934,7 +1897,7 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
 > > Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typename
 > > AltView0&lt;This_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; typename
 > > View0&lt;This_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View0&lt;This_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; ===== Field/Field.h 1.14 vs edited =====</FONT>
 > >  > <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16 15:20:00
 > > 2003</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +++
 > > edited/Field/Field.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
 > > 11:25:22 2004</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -269,9 +269,6 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1Implementation&lt;Field, D,
 > > SV&gt; specialization for indexing a field</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * with a single domain. There is a
 > > single-valued version (SV == true)</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * and a multi-valued version (SV ==
 > > false).</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Any changes to View1Implementation should
 > > also be made to</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * AltView1Implementation.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; // Single-valued version. Handles scalars
 > > and Locs.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -508,62 +505,7 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * AltView1Implementation avoids an
 > > instantiation problem that arises</FONT>
 > >  > <BR><FONT SIZE=2>&gt; when two</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
 > > definition should be exactly</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * the same as View1Implementation except
 > > omitting member functions.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
 > > class.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -// Single-valued version. Handles scalars and
 > > Locs.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class Subject, class Domain, bool
 > > SV&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
 > > EngineTag, class Domain&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh,
 > > T, EngineTag&gt;, Domain, true&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
 > > we're taking a view of.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
 > > Subject_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types are pretty simple
 > > here.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
 > > ReadType_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t
 > > Type_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -};</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
 > > EngineTag, class Domain&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1Implementation&lt;Field&lt;Mesh,
 > > T, EngineTag&gt;, Domain, false&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
 > > we're taking a view of.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
 > > Subject_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
 > > type.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
 > > Engine_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine&lt;Engine_t,
 > > Domain&gt;::Type_t NewEngine_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Element_t
 > > NewT_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
 > > NewEngineTag_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the new Mesh.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;
 > > NewMeshTag&lt;NewEngine_t::dimensions, Mesh, Domain&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 > > NewMeshTag_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
 > > NewEngineTag_t&gt; ReadType_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
 > > NewEngineTag_t&gt; Type_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -};</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, S1&gt;
 > > specialization for indexing a field with a single</FONT>
 > >  > <BR><FONT SIZE=2>&gt; domain.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to
 > > AltView1.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
 > > EngineTag, class Sub1&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -613,8 +555,6 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, int&gt;
 > > specialization for indexing a field with an int.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made to
 > > AltView1.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
 > > EngineTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -658,71 +598,6 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that
 > > arises when two</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
 > > definition should be exactly</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
 > > functions.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
 > > class.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class FieldTag, class
 > > DomainTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
 > > EngineTag, class Sub1&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
 > > EngineTag&gt;, Sub1&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
 > > we're taking a view of.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
 > > Subject_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
 > > type.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
 > > NewDomain1; until then, use</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
 > > NewDomain.h.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
 > > Domain_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef TemporaryNewDomain1&lt;Domain_t,
 > > Sub1&gt; NewDomain_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewDomain_t::SliceType_t
 > > SDomain_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce appropriate version of
 > > implementation to dispatch to.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; enum { sv =
 > > DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef
 > > AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt; Dispatch_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The optimized domain combiner.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef CombineDomainOpt&lt;NewDomain_t,
 > > sv&gt; Combine_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::ReadType_t
 > > ReadType_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::Type_t
 > > Type_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -};</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem that
 > > arises when two</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
 > > definition should be exactly</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
 > > functions.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - *</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
 > > class.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; - */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
 > > EngineTag&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
 > > EngineTag&gt;, int&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
 > > we're taking a view of.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt;
 > > Subject_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
 > > ReadType_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::ElementRef_t
 > > Type_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -};</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -/**</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View2&lt;Field, S1, S2&gt;
 > > specialization for indexing a field with two</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * domains.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1455,14 +1330,14 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// point fields the viewing
 > > domain is an actual centering domain.</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Domain_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Domain_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
 > > Ret_t::makeRead(*this, physicalDomain());</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Domain_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Domain_t&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; readAll() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1470,7 +1345,7 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
 > > Sub1&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Sub1&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Sub1&gt;::ReadType_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read(const Sub1 &amp;s1)
 > > const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1493,14 +1368,14 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
 > > Ret_t::makeRead(*this, s1, s2, s3);</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Domain_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Domain_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return
 > > Ret_t::make(*this, physicalDomain());</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Domain_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Domain_t&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; all() const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; @@ -1508,7 +1383,7 @@</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > >  > <BR><FONT SIZE=2>&gt; </FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
 > > Sub1&gt;</FONT>
 > >  > <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
 > > Sub1&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
 > > Sub1&gt;::Type_t</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()(const Sub1 &amp;s1)
 > > const</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > >  > <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef
 > > View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > >  > </P>
 > >  >
 > >  > </BODY>
 > >  > </HTML>
 > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
 > <HTML>
 > <HEAD>
 > <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
 > <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
 > <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
 > </HEAD>
 > <BODY>
 > 
 > <P><FONT SIZE=2>OK - cool. Thanks for chipping in Dave. You're neurons are obviously less rusty than mine. :)</FONT>
 > </P>
 > 
 > <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>Jim</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>------------------------------------------------------------------------</FONT>
 > <BR><FONT SIZE=2>James A. Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp; jimc at numerix.com</FONT>
 > <BR><FONT SIZE=2>NumeriX, LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505) 424-4477 x104</FONT>
 > <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
 > <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
 > <BR><FONT SIZE=2>&nbsp;</FONT>
 > </P>
 > 
 > <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
 > <BR><FONT SIZE=2>&gt; From: Dave Nystrom [<A HREF="mailto:wdn at lanl.gov">mailto:wdn at lanl.gov</A>]</FONT>
 > <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 10:00 AM</FONT>
 > <BR><FONT SIZE=2>&gt; To: James Crotinger</FONT>
 > <BR><FONT SIZE=2>&gt; Cc: 'Richard Guenther'; 'pooma-dev at pooma.codesourcery.com'; 'Jeffrey D.</FONT>
 > <BR><FONT SIZE=2>&gt; Oldham'; John Hall; Dave Nystrom; Dave Nystrom</FONT>
 > <BR><FONT SIZE=2>&gt; Subject: RE: [pooma-dev] AltView* classes</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; These AltView classes were put in by Jeffrey Oldham to fix a problem that</FONT>
 > <BR><FONT SIZE=2>&gt; I</FONT>
 > <BR><FONT SIZE=2>&gt; was having trying to explicitly instantiate all the Pooma classes and</FONT>
 > <BR><FONT SIZE=2>&gt; functions that Blanca code was using.&nbsp; Basically, the way the Pooma 2</FONT>
 > <BR><FONT SIZE=2>&gt; Field</FONT>
 > <BR><FONT SIZE=2>&gt; class was originally written, we were getting one of these &quot;sv&quot; enums</FONT>
 > <BR><FONT SIZE=2>&gt; instantiated for every unique expression which we had in our source code</FONT>
 > <BR><FONT SIZE=2>&gt; base.&nbsp; I was unable to explicitly instantiate these &quot;sv&quot; enums the way the</FONT>
 > <BR><FONT SIZE=2>&gt; code was originally written because of some issue which Arch Robison of</FONT>
 > <BR><FONT SIZE=2>&gt; Kuck</FONT>
 > <BR><FONT SIZE=2>&gt; and Associates (now Intel) identified - basically the code in it's</FONT>
 > <BR><FONT SIZE=2>&gt; original</FONT>
 > <BR><FONT SIZE=2>&gt; form violated some corner case of the C++ standard according to Arch.</FONT>
 > <BR><FONT SIZE=2>&gt; Jeffrey fixed this problem by adding the AltView class and then I was able</FONT>
 > <BR><FONT SIZE=2>&gt; to</FONT>
 > <BR><FONT SIZE=2>&gt; perform the explicit instantiations that I needed.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; However, I believe Jeffrey or someone else has gone through the code and</FONT>
 > <BR><FONT SIZE=2>&gt; replaced the &quot;sv&quot; enums with some other construct which does not have the</FONT>
 > <BR><FONT SIZE=2>&gt; explicit instantiation difficulties that the &quot;sv&quot; enums had.&nbsp; So, I think</FONT>
 > <BR><FONT SIZE=2>&gt; that it is probably okay to remove the AltView classes and that this would</FONT>
 > <BR><FONT SIZE=2>&gt; clean up the code considerably.&nbsp; I may revisit all this explicit</FONT>
 > <BR><FONT SIZE=2>&gt; instantiation stuff sometime in the not to distant future on a hobby basis</FONT>
 > <BR><FONT SIZE=2>&gt; (weird hobby, huh) and if I encounter difficulties being able to</FONT>
 > <BR><FONT SIZE=2>&gt; explicitly</FONT>
 > <BR><FONT SIZE=2>&gt; instantiate anything, I could then raise it as an issue at that time.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; In summary, the AltView classes were added by Jeffrey to fix an explicit</FONT>
 > <BR><FONT SIZE=2>&gt; instantiation problem that I think no longer exists and I am in favor of</FONT>
 > <BR><FONT SIZE=2>&gt; now</FONT>
 > <BR><FONT SIZE=2>&gt; removing them in the interest of cleaning up the code as much as possible.</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; --</FONT>
 > <BR><FONT SIZE=2>&gt; Dave Nystrom&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email: wdn at lanl.gov</FONT>
 > <BR><FONT SIZE=2>&gt; LANL X-2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone: 505-667-7913&nbsp;&nbsp;&nbsp;&nbsp; fax: 505-665-2227</FONT>
 > <BR><FONT SIZE=2>&gt; </FONT>
 > <BR><FONT SIZE=2>&gt; James Crotinger writes:</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; Hi Richard,</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; This tickled a neuron the other day, but I couldn't recall the details.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; The AltView classes were put in to reduce link times and sizes for</FONT>
 > <BR><FONT SIZE=2>&gt; large</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; codes. The classes that have enums end up having a link-time cost, both</FONT>
 > <BR><FONT SIZE=2>&gt; in</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; space and time. I believe this refactoring was done to reduce the</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; cardinality of classes having the &quot;sv&quot; enum. My recollection is that</FONT>
 > <BR><FONT SIZE=2>&gt; this,</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; and other similar &quot;optimizations&quot;, had a pretty substantial impact on</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; link-time for Blanca. Unless these are hurting something else, I would</FONT>
 > <BR><FONT SIZE=2>&gt; tend</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; to leave them in.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; Does the CodeSourcery CVS repository have complete CVS history? (i.e.</FONT>
 > <BR><FONT SIZE=2>&gt; did we</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; copy the repository, or just the head version?) This should have been</FONT>
 > <BR><FONT SIZE=2>&gt; easy</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; to determine via CVS.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &nbsp;&nbsp; Jim</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; -----------------------------------------------------------------------</FONT>
 > <BR><FONT SIZE=2>&gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; James A. Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email:</FONT>
 > <BR><FONT SIZE=2>&gt; jimc at numerix.com</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; NumeriX, LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505) 424-4477</FONT>
 > <BR><FONT SIZE=2>&gt; x104</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; 2960 Rodeo Park Dr. W.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; Santa Fe, NM 87505</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -----Original Message-----</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; From: Richard Guenther [<A HREF="mailto:rguenth at tat.physik.uni-tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Sent: Tuesday, March 02, 2004 3:29 AM</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; To: pooma-dev at pooma.codesourcery.com</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Cc: Jeffrey D. Oldham</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Subject: Re: [pooma-dev] AltView* classes</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; On Tue, 2 Mar 2004, Richard Guenther wrote:</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; On Fri, 27 Feb 2004, Richard Guenther wrote:</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; Hi!</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; Does anyone remember the exact reason for the existance of the</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; AltView*</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; classes in Array.h and Field.h?&nbsp; Removing them and fixing their</FONT>
 > <BR><FONT SIZE=2>&gt; usage</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; to</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; use View* seems to work (full test with gcc 3.3 and 3.4 in</FONT>
 > <BR><FONT SIZE=2>&gt; progress).</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; Testing completed with no new failures.&nbsp; Would it be ok to remove</FONT>
 > <BR><FONT SIZE=2>&gt; those</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; AltView* classes?</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Which would be...</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Ok?</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Richard.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; 2004Mar02&nbsp; Richard Guenther &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; * src/Array/Array.h: remove all traces of AltView0 class.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; src/Field/Field.h: remove all traces of AltView1 and</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; AltView1Implementation classes.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ===== Array/Array.h 1.14 vs edited =====</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; --- 1.14/r2/src/Array/Array.h&nbsp;&nbsp;&nbsp; Tue Dec 16 15:19:57 2003</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +++ edited/Array/Array.h Tue Mar&nbsp; 2 11:24:14 2004</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -649,8 +649,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // an existing engine cannot be any kind of slice domain.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // Also, bounds checking would make no sense because it would</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // reduce to contains(a.domain(), a.domain());</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -//</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Any changes to this class should also be made to AltView0.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; struct View0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -695,41 +693,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; };</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// AltView0 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// classes use each other.&nbsp; This class's definition should be</FONT>
 > <BR><FONT SIZE=2>&gt; exactly</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// the same as View0 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -//</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class ArrayTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView0;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Array&lt;Dim, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // At some point, we need to fix NewDomain1; until then, use</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // the temporary version from Array.h.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Engine_t Engine_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Domain_t Domain_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce the template parameters for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewEngine&lt;Engine_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngine_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; enum { newDim = NewEngine_t::dimensions };</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewEngine_t::Tag_t NewEngineTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The output types.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Array&lt;newDim, T, NewEngineTag_t&gt; Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Type_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;int Dim, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; struct View1&lt;Array&lt;Dim, T, EngineTag&gt;, int&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1864,7 +1827,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// A zero-argument version of operator(), which takes a view of</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// array's domain, is also supplied.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typename AltView0&lt;This_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; typename View0&lt;This_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View0&lt;This_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1934,7 +1897,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typename AltView0&lt;This_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; typename View0&lt;This_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View0&lt;This_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ===== Field/Field.h 1.14 vs edited =====</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; --- 1.14/r2/src/Field/Field.h&nbsp;&nbsp;&nbsp; Tue Dec 16 15:20:00 2003</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +++ edited/Field/Field.h Tue Mar&nbsp; 2 11:25:22 2004</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -269,9 +269,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View1Implementation&lt;Field, D, SV&gt; specialization for indexing a</FONT>
 > <BR><FONT SIZE=2>&gt; field</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * with a single domain. There is a single-valued version (SV ==</FONT>
 > <BR><FONT SIZE=2>&gt; true)</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * and a multi-valued version (SV == false).</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to View1Implementation should also be made to</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1Implementation.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // Single-valued version. Handles scalars and Locs.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -508,62 +505,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1Implementation avoids an instantiation problem that</FONT>
 > <BR><FONT SIZE=2>&gt; arises</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; when two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each other.&nbsp; This class's definition should be</FONT>
 > <BR><FONT SIZE=2>&gt; exactly</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as View1Implementation except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Single-valued version. Handles scalars and Locs.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Subject, class Domain, bool SV&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1Implementation;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class T, class EngineTag, class Domain&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;, Domain,</FONT>
 > <BR><FONT SIZE=2>&gt; true&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return types are pretty simple here.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Element_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::ElementRef_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class T, class EngineTag, class Domain&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;, Domain,</FONT>
 > <BR><FONT SIZE=2>&gt; false&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Engine_t Engine_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewEngine&lt;Engine_t, Domain&gt;::Type_t NewEngine_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewEngine_t::Element_t NewT_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewEngine_t::Tag_t NewEngineTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce the new Mesh.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp;&nbsp;&nbsp; NewMeshTag&lt;NewEngine_t::dimensions, Mesh, Domain&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NewMeshTag_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The output types.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View1&lt;Field, S1&gt; specialization for indexing a field with a</FONT>
 > <BR><FONT SIZE=2>&gt; single</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; domain.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to View1 should also be made to AltView1.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;class Mesh, class T, class EngineTag, class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -613,8 +555,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View1&lt;Field, int&gt; specialization for indexing a field with an</FONT>
 > <BR><FONT SIZE=2>&gt; int.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to View1 should also be made to AltView1.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;class Mesh, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -658,71 +598,6 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each other.&nbsp; This class's definition should be</FONT>
 > <BR><FONT SIZE=2>&gt; exactly</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as View1 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class FieldTag, class DomainTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class T, class EngineTag, class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for the output type.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // At some point, we need to fix NewDomain1; until then, use</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // the temporary version from NewDomain.h.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Domain_t Domain_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef TemporaryNewDomain1&lt;Domain_t, Sub1&gt; NewDomain_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename NewDomain_t::SliceType_t SDomain_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce appropriate version of implementation to dispatch to.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; enum { sv = DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Dispatch_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The optimized domain combiner.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef CombineDomainOpt&lt;NewDomain_t, sv&gt; Combine_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return types.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Dispatch_t::ReadType_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Dispatch_t::Type_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1 avoids an instantiation problem that arises when two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each other.&nbsp; This class's definition should be</FONT>
 > <BR><FONT SIZE=2>&gt; exactly</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as View1 except omitting member functions.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly instantiate this class.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class T, class EngineTag&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, int&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef for the thing we're taking a view of.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh, T, EngineTag&gt; Subject_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return types.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::Element_t ReadType_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename Subject_t::ElementRef_t Type_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View2&lt;Field, S1, S2&gt; specialization for indexing a field with two</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * domains.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1455,14 +1330,14 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// point fields the viewing domain is an actual centering domain.</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, physicalDomain());</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; readAll() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1470,7 +1345,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; template&lt;class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read(const Sub1 &amp;s1) const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1493,14 +1368,14 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::makeRead(*this, s1, s2, s3);</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return Ret_t::make(*this, physicalDomain());</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; all() const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1508,7 +1383,7 @@</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; template&lt;class Sub1&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename AltView1&lt;This_t, Sub1&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename View1&lt;This_t, Sub1&gt;::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; operator()(const Sub1 &amp;s1) const</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 3.2//EN&quot;&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;HTML&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;HEAD&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;META HTTP-EQUIV=&quot;Content-Type&quot; CONTENT=&quot;text/html; charset=us-ascii&quot;&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;META NAME=&quot;Generator&quot; CONTENT=&quot;MS Exchange Server version</FONT>
 > <BR><FONT SIZE=2>&gt; 5.5.2653.12&quot;&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;TITLE&gt;RE: [pooma-dev] AltView* classes&lt;/TITLE&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/HEAD&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BODY&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;Hi Richard,&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;This tickled a neuron the other day, but I couldn't</FONT>
 > <BR><FONT SIZE=2>&gt; recall the details.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;The AltView classes were put in to reduce link times</FONT>
 > <BR><FONT SIZE=2>&gt; and sizes for large codes. The classes that have enums end up having a</FONT>
 > <BR><FONT SIZE=2>&gt; link-time cost, both in space and time. I believe this refactoring was</FONT>
 > <BR><FONT SIZE=2>&gt; done to reduce the cardinality of classes having the &amp;quot;sv&amp;quot; enum.</FONT>
 > <BR><FONT SIZE=2>&gt; My recollection is that this, and other similar &amp;quot;optimizations&amp;quot;,</FONT>
 > <BR><FONT SIZE=2>&gt; had a pretty substantial impact on link-time for Blanca. Unless these are</FONT>
 > <BR><FONT SIZE=2>&gt; hurting something else, I would tend to leave them in. &lt;/FONT&gt;&lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;Does the CodeSourcery CVS repository have complete CVS</FONT>
 > <BR><FONT SIZE=2>&gt; history? (i.e. did we copy the repository, or just the head version?) This</FONT>
 > <BR><FONT SIZE=2>&gt; should have been easy to determine via CVS. &lt;/FONT&gt;&lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &lt;FONT SIZE=2&gt;Jim&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;-------------------------------------------------------</FONT>
 > <BR><FONT SIZE=2>&gt; -----------------&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;James A.</FONT>
 > <BR><FONT SIZE=2>&gt; Crotinger&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp</FONT>
 > <BR><FONT SIZE=2>&gt; ;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;</FONT>
 > <BR><FONT SIZE=2>&gt; nbsp;&amp;nbsp;&amp;nbsp; email:&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; jimc at numerix.com&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;NumeriX,</FONT>
 > <BR><FONT SIZE=2>&gt; LLC&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp</FONT>
 > <BR><FONT SIZE=2>&gt; ;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;</FONT>
 > <BR><FONT SIZE=2>&gt; nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; phone:&amp;nbsp; (505) 424-</FONT>
 > <BR><FONT SIZE=2>&gt; 4477 x104&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;2960 Rodeo Park Dr. W.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;Santa Fe, NM 87505&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;nbsp;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;&amp;gt; -----Original Message-----&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; From: Richard Guenther [&lt;A</FONT>
 > <BR><FONT SIZE=2>&gt; HREF=&quot;<A HREF="mailto:rguenth at tat.physik.uni-">mailto:rguenth at tat.physik.uni-</A></FONT>
 > <BR><FONT SIZE=2>&gt; tuebingen.de&quot;&gt;<A HREF="mailto:rguenth at tat.physik.uni-tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>&lt;/A&gt;]&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Sent: Tuesday, March 02, 2004 3:29 AM&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; To: pooma-dev at pooma.codesourcery.com&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Cc: Jeffrey D. Oldham&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Subject: Re: [pooma-dev] AltView* classes&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; On Tue, 2 Mar 2004, Richard Guenther</FONT>
 > <BR><FONT SIZE=2>&gt; wrote:&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; On Fri, 27 Feb 2004, Richard Guenther</FONT>
 > <BR><FONT SIZE=2>&gt; wrote:&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; Hi!&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; Does anyone remember the exact reason</FONT>
 > <BR><FONT SIZE=2>&gt; for the existance of the&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; AltView*&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; classes in Array.h and Field.h?&amp;nbsp;</FONT>
 > <BR><FONT SIZE=2>&gt; Removing them and fixing their usage&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; to&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; use View* seems to work (full test with</FONT>
 > <BR><FONT SIZE=2>&gt; gcc 3.3 and 3.4 in progress).&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; Testing completed with no new</FONT>
 > <BR><FONT SIZE=2>&gt; failures.&amp;nbsp; Would it be ok to remove those&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;gt; AltView* classes?&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Which would be...&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Ok?&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; Richard.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; 2004Mar02&amp;nbsp; Richard Guenther</FONT>
 > <BR><FONT SIZE=2>&gt; &amp;lt;richard.guenther at uni-tuebingen.de&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; *</FONT>
 > <BR><FONT SIZE=2>&gt; src/Array/Array.h: remove all traces of AltView0 class.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; src/Field/Field.h:</FONT>
 > <BR><FONT SIZE=2>&gt; remove all traces of AltView1 and&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
 > <BR><FONT SIZE=2>&gt; AltView1Implementation classes.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; ===== Array/Array.h 1.14 vs edited =====&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16 15:19:57</FONT>
 > <BR><FONT SIZE=2>&gt; 2003&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +++</FONT>
 > <BR><FONT SIZE=2>&gt; edited/Array/Array.h&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Tue Mar&amp;nbsp; 2</FONT>
 > <BR><FONT SIZE=2>&gt; 11:24:14 2004&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -649,8 +649,6 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; // an existing engine cannot be any kind of</FONT>
 > <BR><FONT SIZE=2>&gt; slice domain.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; // Also, bounds checking would make no</FONT>
 > <BR><FONT SIZE=2>&gt; sense because it would&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; // reduce to contains(a.domain(),</FONT>
 > <BR><FONT SIZE=2>&gt; a.domain());&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -//&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// Any changes to this class should also be made</FONT>
 > <BR><FONT SIZE=2>&gt; to AltView0.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;int Dim, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; struct View0&amp;lt;Array&amp;lt;Dim, T,</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -695,41 +693,6 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; };&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// AltView0 avoids an instantiation problem that</FONT>
 > <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// classes use each other.&amp;nbsp; This class's</FONT>
 > <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// the same as View0 except omitting member</FONT>
 > <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -//&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// Do NOT explicitly instantiate this</FONT>
 > <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class ArrayTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView0;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;int Dim, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView0&amp;lt;Array&amp;lt;Dim, T,</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the thing</FONT>
 > <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Array&amp;lt;Dim, T, EngineTag&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the output</FONT>
 > <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // At some point, we need to fix</FONT>
 > <BR><FONT SIZE=2>&gt; NewDomain1; until then, use&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // the temporary version from</FONT>
 > <BR><FONT SIZE=2>&gt; Array.h.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Engine_t</FONT>
 > <BR><FONT SIZE=2>&gt; Engine_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Domain_t</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce the template parameters for the</FONT>
 > <BR><FONT SIZE=2>&gt; output type.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewEngine&amp;lt;Engine_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t NewEngine_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; enum { newDim = NewEngine_t::dimensions</FONT>
 > <BR><FONT SIZE=2>&gt; };&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewEngine_t::Tag_t</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngineTag_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The output types.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Array&amp;lt;newDim, T,</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt; Type_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Type_t ReadType_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;int Dim, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; struct View1&amp;lt;Array&amp;lt;Dim, T,</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;, int&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1864,7 +1827,7 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// A zero-argument version of</FONT>
 > <BR><FONT SIZE=2>&gt; operator(), which takes a view of&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// array's domain, is also</FONT>
 > <BR><FONT SIZE=2>&gt; supplied.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; //@{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typename</FONT>
 > <BR><FONT SIZE=2>&gt; AltView0&amp;lt;This_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; typename</FONT>
 > <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1934,7 +1897,7 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; return</FONT>
 > <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typename</FONT>
 > <BR><FONT SIZE=2>&gt; AltView0&amp;lt;This_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; typename</FONT>
 > <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; ===== Field/Field.h 1.14 vs edited =====&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16 15:20:00</FONT>
 > <BR><FONT SIZE=2>&gt; 2003&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +++</FONT>
 > <BR><FONT SIZE=2>&gt; edited/Field/Field.h&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Tue Mar&amp;nbsp; 2</FONT>
 > <BR><FONT SIZE=2>&gt; 11:25:22 2004&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -269,9 +269,6 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View1Implementation&amp;lt;Field, D,</FONT>
 > <BR><FONT SIZE=2>&gt; SV&amp;gt; specialization for indexing a field&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * with a single domain. There is a</FONT>
 > <BR><FONT SIZE=2>&gt; single-valued version (SV == true)&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * and a multi-valued version (SV ==</FONT>
 > <BR><FONT SIZE=2>&gt; false).&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Any changes to View1Implementation should</FONT>
 > <BR><FONT SIZE=2>&gt; also be made to&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * AltView1Implementation.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; // Single-valued version. Handles scalars</FONT>
 > <BR><FONT SIZE=2>&gt; and Locs.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -508,62 +505,7 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * AltView1Implementation avoids an</FONT>
 > <BR><FONT SIZE=2>&gt; instantiation problem that arises&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; when two&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This class's</FONT>
 > <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * the same as View1Implementation except</FONT>
 > <BR><FONT SIZE=2>&gt; omitting member functions.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
 > <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -// Single-valued version. Handles scalars and</FONT>
 > <BR><FONT SIZE=2>&gt; Locs.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class Subject, class Domain, bool</FONT>
 > <BR><FONT SIZE=2>&gt; SV&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1Implementation;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag, class Domain&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1Implementation&amp;lt;Field&amp;lt;Mesh,</FONT>
 > <BR><FONT SIZE=2>&gt; T, EngineTag&amp;gt;, Domain, true&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the thing</FONT>
 > <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T, EngineTag&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return types are pretty simple</FONT>
 > <BR><FONT SIZE=2>&gt; here.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Element_t</FONT>
 > <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::ElementRef_t</FONT>
 > <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag, class Domain&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1Implementation&amp;lt;Field&amp;lt;Mesh,</FONT>
 > <BR><FONT SIZE=2>&gt; T, EngineTag&amp;gt;, Domain, false&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the thing</FONT>
 > <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T, EngineTag&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the output</FONT>
 > <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Engine_t</FONT>
 > <BR><FONT SIZE=2>&gt; Engine_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewEngine&amp;lt;Engine_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain&amp;gt;::Type_t NewEngine_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewEngine_t::Element_t</FONT>
 > <BR><FONT SIZE=2>&gt; NewT_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewEngine_t::Tag_t</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngineTag_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce the new Mesh.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
 > <BR><FONT SIZE=2>&gt; NewMeshTag&amp;lt;NewEngine_t::dimensions, Mesh, Domain&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
 > <BR><FONT SIZE=2>&gt; NewMeshTag_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The output types.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;NewMeshTag_t, NewT_t,</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt; ReadType_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;NewMeshTag_t, NewT_t,</FONT>
 > <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt; Type_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View1&amp;lt;Field, S1&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; specialization for indexing a field with a single&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; domain.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Any changes to View1 should also be made to</FONT>
 > <BR><FONT SIZE=2>&gt; AltView1.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag, class Sub1&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -613,8 +555,6 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View1&amp;lt;Field, int&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; specialization for indexing a field with an int.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Any changes to View1 should also be made to</FONT>
 > <BR><FONT SIZE=2>&gt; AltView1.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -658,71 +598,6 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * AltView1 avoids an instantiation problem that</FONT>
 > <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This class's</FONT>
 > <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * the same as View1 except omitting member</FONT>
 > <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
 > <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class FieldTag, class</FONT>
 > <BR><FONT SIZE=2>&gt; DomainTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag, class Sub1&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1&amp;lt;Field&amp;lt;Mesh, T,</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;, Sub1&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the thing</FONT>
 > <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T, EngineTag&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the output</FONT>
 > <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // At some point, we need to fix</FONT>
 > <BR><FONT SIZE=2>&gt; NewDomain1; until then, use&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // the temporary version from</FONT>
 > <BR><FONT SIZE=2>&gt; NewDomain.h.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Domain_t</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef TemporaryNewDomain1&amp;lt;Domain_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt; NewDomain_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename NewDomain_t::SliceType_t</FONT>
 > <BR><FONT SIZE=2>&gt; SDomain_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce appropriate version of</FONT>
 > <BR><FONT SIZE=2>&gt; implementation to dispatch to.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; enum { sv =</FONT>
 > <BR><FONT SIZE=2>&gt; DomainTraits&amp;lt;SDomain_t&amp;gt;::singleValued };&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; AltView1Implementation&amp;lt;Subject_t, SDomain_t, sv&amp;gt; Dispatch_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The optimized domain combiner.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef CombineDomainOpt&amp;lt;NewDomain_t,</FONT>
 > <BR><FONT SIZE=2>&gt; sv&amp;gt; Combine_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return types.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Dispatch_t::ReadType_t</FONT>
 > <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Dispatch_t::Type_t</FONT>
 > <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * AltView1 avoids an instantiation problem that</FONT>
 > <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This class's</FONT>
 > <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * the same as View1 except omitting member</FONT>
 > <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
 > <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -struct AltView1&amp;lt;Field&amp;lt;Mesh, T,</FONT>
 > <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;, int&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the thing</FONT>
 > <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T, EngineTag&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return types.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::Element_t</FONT>
 > <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename Subject_t::ElementRef_t</FONT>
 > <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View2&amp;lt;Field, S1, S2&amp;gt;</FONT>
 > <BR><FONT SIZE=2>&gt; specialization for indexing a field with two&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * domains.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1455,14 +1330,14 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// point fields the viewing</FONT>
 > <BR><FONT SIZE=2>&gt; domain is an actual centering domain.&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; //@{&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; return</FONT>
 > <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this, physicalDomain());&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; readAll() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1470,7 +1345,7 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; template&amp;lt;class</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read(const Sub1 &amp;amp;s1)</FONT>
 > <BR><FONT SIZE=2>&gt; const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Sub1&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1493,14 +1368,14 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; return</FONT>
 > <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this, s1, s2, s3);&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; return</FONT>
 > <BR><FONT SIZE=2>&gt; Ret_t::make(*this, physicalDomain());&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; all() const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; @@ -1508,7 +1383,7 @@&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; }&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; template&amp;lt;class</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename AltView1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename View1&amp;lt;This_t,</FONT>
 > <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()(const Sub1 &amp;amp;s1)</FONT>
 > <BR><FONT SIZE=2>&gt; const&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; {&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; typedef</FONT>
 > <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Sub1&amp;gt; Ret_t;&lt;/FONT&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/BODY&gt;</FONT>
 > <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/HTML&gt;</FONT>
 > </P>
 > 
 > </BODY>
 > </HTML>


From rguenth at tat.physik.uni-tuebingen.de  Tue Mar  2 17:20:27 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 02 Mar 2004 18:20:27 +0100
Subject: [pooma-dev] AltView* classes
In-Reply-To: <16452.49542.996541.986692@bedell.lanl.gov>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com> <16452.49542.996541.986692@bedell.lanl.gov>
Message-ID: <4044C25B.6030001@tat.physik.uni-tuebingen.de>

Dave Nystrom wrote:
> No problem.  I think my neurons are less rusty because of my perverse
> hobby:-).  I've actually compiled the Blanca Demo stuff in the last year and
> I try to keep up with evolution of Pooma 2 with the thought that I will
> sometime get back to using it.  John, Don and Jean have actually been doing
> some work on the source code base in the last year.
> 
> Also, the Blanca Demo project and it's progeny is the only Blanca related
> source code base that to my knowledge ever used Pooma 2.  And supposedly, the
> Blanca project is dead and unlikely to use anything that we ever did.

I suppose it is not possible to "release" some of this demo code, if not 
for "educating of Pooma2" purpose?

Thanks,
Richard.


From jxyh at lanl.gov  Tue Mar  2 17:34:09 2004
From: jxyh at lanl.gov (John H. Hall)
Date: Tue, 2 Mar 2004 10:34:09 -0700
Subject: [pooma-dev] AltView* classes
In-Reply-To: <16452.49542.996541.986692@bedell.lanl.gov>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com> <16452.49542.996541.986692@bedell.lanl.gov>
Message-ID: <D02E186C-6C6F-11D8-95A7-000A958E5012@lanl.gov>

Dave, et al:
I have just had extensive discussion regarding the "Blanca is dead"  
issue. That is not quite the whole story. Management has decided to  
force Blanca and Shavano to merge, but, it is up to Blanca and Shavano  
to define what exactly that means. The head of ASCI at LANL is James  
Peery and he believes (to the best of my knowledge) that some  
amalgamation will win out.

Meanwhile, Don and Jean Marshall and I are still developing what we  
affectionately refer to as "the Blanca Demo Project". This is funded  
(at a low level) through at least the end of this year, and around that  
time, I believe the code will start really impressing some people. We  
are having to develop a series of new POOMA engines for this project,  
some of which I hinted at a while back. The changes to field  
comtemplated here won't really affect engines for the most part, so if  
Dave's happy then I am happy.

A special thanks to Richard for putting so much time into advancing the  
status of POOMA.
John Hall


On Mar 2, 2004, at 10:16 AM, Dave Nystrom wrote:

> No problem.  I think my neurons are less rusty because of my perverse
> hobby:-).  I've actually compiled the Blanca Demo stuff in the last  
> year and
> I try to keep up with evolution of Pooma 2 with the thought that I will
> sometime get back to using it.  John, Don and Jean have actually been  
> doing
> some work on the source code base in the last year.
>
> Also, the Blanca Demo project and it's progeny is the only Blanca  
> related
> source code base that to my knowledge ever used Pooma 2.  And  
> supposedly, the
> Blanca project is dead and unlikely to use anything that we ever did.
>
> --  
> Dave Nystrom			email: wdn at lanl.gov
> LANL X-2			phone: 505-667-7913	fax: 505-665-2227
>
> James Crotinger writes:
>> OK - cool. Thanks for chipping in Dave. You're neurons are obviously  
>> less
>> rusty than mine. :)
>>
>> 	Jim
>>
>> ---------------------------------------------------------------------- 
>> --
>> James A. Crotinger                           email:      
>> jimc at numerix.com
>> NumeriX, LLC                                 phone:  (505) 424-4477  
>> x104
>> 2960 Rodeo Park Dr. W.
>> Santa Fe, NM 87505
>>
>>
>>> -----Original Message-----
>>> From: Dave Nystrom [mailto:wdn at lanl.gov]
>>> Sent: Tuesday, March 02, 2004 10:00 AM
>>> To: James Crotinger
>>> Cc: 'Richard Guenther'; 'pooma-dev at pooma.codesourcery.com'; 'Jeffrey  
>>> D.
>>> Oldham'; John Hall; Dave Nystrom; Dave Nystrom
>>> Subject: RE: [pooma-dev] AltView* classes
>>>
>>> These AltView classes were put in by Jeffrey Oldham to fix a problem  
>>> that
>>> I
>>> was having trying to explicitly instantiate all the Pooma classes and
>>> functions that Blanca code was using.  Basically, the way the Pooma 2
>>> Field
>>> class was originally written, we were getting one of these "sv" enums
>>> instantiated for every unique expression which we had in our source  
>>> code
>>> base.  I was unable to explicitly instantiate these "sv" enums the  
>>> way the
>>> code was originally written because of some issue which Arch Robison  
>>> of
>>> Kuck
>>> and Associates (now Intel) identified - basically the code in it's
>>> original
>>> form violated some corner case of the C++ standard according to Arch.
>>> Jeffrey fixed this problem by adding the AltView class and then I  
>>> was able
>>> to
>>> perform the explicit instantiations that I needed.
>>>
>>> However, I believe Jeffrey or someone else has gone through the code  
>>> and
>>> replaced the "sv" enums with some other construct which does not  
>>> have the
>>> explicit instantiation difficulties that the "sv" enums had.  So, I  
>>> think
>>> that it is probably okay to remove the AltView classes and that this  
>>> would
>>> clean up the code considerably.  I may revisit all this explicit
>>> instantiation stuff sometime in the not to distant future on a hobby  
>>> basis
>>> (weird hobby, huh) and if I encounter difficulties being able to
>>> explicitly
>>> instantiate anything, I could then raise it as an issue at that time.
>>>
>>> In summary, the AltView classes were added by Jeffrey to fix an  
>>> explicit
>>> instantiation problem that I think no longer exists and I am in  
>>> favor of
>>> now
>>> removing them in the interest of cleaning up the code as much as  
>>> possible.
>>>
>>> --
>>> Dave Nystrom			email: wdn at lanl.gov
>>> LANL X-2			phone: 505-667-7913	fax: 505-665-2227
>>>
>>> James Crotinger writes:
>>>> Hi Richard,
>>>>
>>>> This tickled a neuron the other day, but I couldn't recall the  
>>>> details.
>>>>
>>>> The AltView classes were put in to reduce link times and sizes for
>>> large
>>>> codes. The classes that have enums end up having a link-time cost,  
>>>> both
>>> in
>>>> space and time. I believe this refactoring was done to reduce the
>>>> cardinality of classes having the "sv" enum. My recollection is that
>>> this,
>>>> and other similar "optimizations", had a pretty substantial impact  
>>>> on
>>>> link-time for Blanca. Unless these are hurting something else, I  
>>>> would
>>> tend
>>>> to leave them in.
>>>>
>>>> Does the CodeSourcery CVS repository have complete CVS history?  
>>>> (i.e.
>>> did we
>>>> copy the repository, or just the head version?) This should have  
>>>> been
>>> easy
>>>> to determine via CVS.
>>>>
>>>> 	Jim
>>>>
>>>> -------------------------------------------------------------------- 
>>>> ---
>>> -
>>>> James A. Crotinger                           email:
>>> jimc at numerix.com
>>>> NumeriX, LLC                                 phone:  (505) 424-4477
>>> x104
>>>> 2960 Rodeo Park Dr. W.
>>>> Santa Fe, NM 87505
>>>>
>>>>
>>>>> -----Original Message-----
>>>>> From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
>>>>> Sent: Tuesday, March 02, 2004 3:29 AM
>>>>> To: pooma-dev at pooma.codesourcery.com
>>>>> Cc: Jeffrey D. Oldham
>>>>> Subject: Re: [pooma-dev] AltView* classes
>>>>>
>>>>> On Tue, 2 Mar 2004, Richard Guenther wrote:
>>>>>
>>>>>> On Fri, 27 Feb 2004, Richard Guenther wrote:
>>>>>>
>>>>>>> Hi!
>>>>>>>
>>>>>>> Does anyone remember the exact reason for the existance of the
>>>>> AltView*
>>>>>>> classes in Array.h and Field.h?  Removing them and fixing their
>>> usage
>>>>> to
>>>>>>> use View* seems to work (full test with gcc 3.3 and 3.4 in
>>> progress).
>>>>>>
>>>>>> Testing completed with no new failures.  Would it be ok to remove
>>> those
>>>>>> AltView* classes?
>>>>>
>>>>> Which would be...
>>>>>
>>>>> Ok?
>>>>>
>>>>> Richard.
>>>>>
>>>>>
>>>>> 2004Mar02  Richard Guenther <richard.guenther at uni-tuebingen.de>
>>>>>
>>>>> 	* src/Array/Array.h: remove all traces of AltView0 class.
>>>>> 	src/Field/Field.h: remove all traces of AltView1 and
>>>>> 	AltView1Implementation classes.
>>>>>
>>>>> ===== Array/Array.h 1.14 vs edited =====
>>>>> --- 1.14/r2/src/Array/Array.h	Tue Dec 16 15:19:57 2003
>>>>> +++ edited/Array/Array.h	Tue Mar  2 11:24:14 2004
>>>>> @@ -649,8 +649,6 @@
>>>>>  // an existing engine cannot be any kind of slice domain.
>>>>>  // Also, bounds checking would make no sense because it would
>>>>>  // reduce to contains(a.domain(), a.domain());
>>>>> -//
>>>>> -// Any changes to this class should also be made to AltView0.
>>>>>
>>>>>  template<int Dim, class T, class EngineTag>
>>>>>  struct View0<Array<Dim, T, EngineTag> >
>>>>> @@ -695,41 +693,6 @@
>>>>>      }
>>>>>  };
>>>>>
>>>>> -// AltView0 avoids an instantiation problem that arises when two
>>>>> -// classes use each other.  This class's definition should be
>>> exactly
>>>>> -// the same as View0 except omitting member functions.
>>>>> -//
>>>>> -// Do NOT explicitly instantiate this class.
>>>>> -
>>>>> -template<class ArrayTag>
>>>>> -struct AltView0;
>>>>> -
>>>>> -template<int Dim, class T, class EngineTag>
>>>>> -struct AltView0<Array<Dim, T, EngineTag> >
>>>>> -{
>>>>> -  // Convenience typedef for the thing we're taking a view of.
>>>>> -
>>>>> -  typedef Array<Dim, T, EngineTag> Subject_t;
>>>>> -
>>>>> -  // Deduce domains for the output type.
>>>>> -  // At some point, we need to fix NewDomain1; until then, use
>>>>> -  // the temporary version from Array.h.
>>>>> -
>>>>> -  typedef typename Subject_t::Engine_t Engine_t;
>>>>> -  typedef typename Subject_t::Domain_t Domain_t;
>>>>> -
>>>>> -  // Deduce the template parameters for the output type.
>>>>> -
>>>>> -  typedef typename NewEngine<Engine_t, Domain_t>::Type_t
>>> NewEngine_t;
>>>>> -  enum { newDim = NewEngine_t::dimensions };
>>>>> -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
>>>>> -
>>>>> -  // The output types.
>>>>> -
>>>>> -  typedef Array<newDim, T, NewEngineTag_t> Type_t;
>>>>> -  typedef Type_t ReadType_t;
>>>>> -};
>>>>> -
>>>>>  template<int Dim, class T, class EngineTag>
>>>>>  struct View1<Array<Dim, T, EngineTag>, int>
>>>>>  {
>>>>> @@ -1864,7 +1827,7 @@
>>>>>    /// A zero-argument version of operator(), which takes a view of
>>>>>    /// array's domain, is also supplied.
>>>>>    //@{
>>>>> -  typename AltView0<This_t>::ReadType_t
>>>>> +  typename View0<This_t>::ReadType_t
>>>>>    read() const
>>>>>      {
>>>>>        typedef View0<This_t> Ret_t;
>>>>> @@ -1934,7 +1897,7 @@
>>>>>        return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
>>>>>      }
>>>>>
>>>>> -  typename AltView0<This_t>::Type_t
>>>>> +  typename View0<This_t>::Type_t
>>>>>    operator()() const
>>>>>      {
>>>>>        typedef View0<This_t> Ret_t;
>>>>> ===== Field/Field.h 1.14 vs edited =====
>>>>> --- 1.14/r2/src/Field/Field.h	Tue Dec 16 15:20:00 2003
>>>>> +++ edited/Field/Field.h	Tue Mar  2 11:25:22 2004
>>>>> @@ -269,9 +269,6 @@
>>>>>   * View1Implementation<Field, D, SV> specialization for indexing a
>>> field
>>>>>   * with a single domain. There is a single-valued version (SV ==
>>> true)
>>>>>   * and a multi-valued version (SV == false).
>>>>> - *
>>>>> - * Any changes to View1Implementation should also be made to
>>>>> - * AltView1Implementation.
>>>>>   */
>>>>>
>>>>>  // Single-valued version. Handles scalars and Locs.
>>>>> @@ -508,62 +505,7 @@
>>>>>
>>>>>
>>>>>  /**
>>>>> - * AltView1Implementation avoids an instantiation problem that
>>> arises
>>>>> when two
>>>>> - * classes use each other.  This class's definition should be
>>> exactly
>>>>> - * the same as View1Implementation except omitting member  
>>>>> functions.
>>>>> - *
>>>>> - * Do NOT explicitly instantiate this class.
>>>>> - */
>>>>> -
>>>>> -// Single-valued version. Handles scalars and Locs.
>>>>> -
>>>>> -template<class Subject, class Domain, bool SV>
>>>>> -struct AltView1Implementation;
>>>>> -
>>>>> -template<class Mesh, class T, class EngineTag, class Domain>
>>>>> -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
>>> true>
>>>>> -{
>>>>> -  // Convenience typedef for the thing we're taking a view of.
>>>>> -
>>>>> -  typedef Field<Mesh, T, EngineTag> Subject_t;
>>>>> -
>>>>> -  // The return types are pretty simple here.
>>>>> -
>>>>> -  typedef typename Subject_t::Element_t ReadType_t;
>>>>> -  typedef typename Subject_t::ElementRef_t Type_t;
>>>>> -};
>>>>> -
>>>>> -template<class Mesh, class T, class EngineTag, class Domain>
>>>>> -struct AltView1Implementation<Field<Mesh, T, EngineTag>, Domain,
>>> false>
>>>>> -{
>>>>> -  // Convenience typedef for the thing we're taking a view of.
>>>>> -
>>>>> -  typedef Field<Mesh, T, EngineTag> Subject_t;
>>>>> -
>>>>> -  // Deduce domains for the output type.
>>>>> -
>>>>> -  typedef typename Subject_t::Engine_t Engine_t;
>>>>> -  typedef typename NewEngine<Engine_t, Domain>::Type_t  
>>>>> NewEngine_t;
>>>>> -  typedef typename NewEngine_t::Element_t NewT_t;
>>>>> -  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
>>>>> -
>>>>> -  // Deduce the new Mesh.
>>>>> -
>>>>> -  typedef typename
>>>>> -    NewMeshTag<NewEngine_t::dimensions, Mesh, Domain>::Type_t
>>>>> -      NewMeshTag_t;
>>>>> -
>>>>> -  // The output types.
>>>>> -
>>>>> -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> ReadType_t;
>>>>> -  typedef Field<NewMeshTag_t, NewT_t, NewEngineTag_t> Type_t;
>>>>> -};
>>>>> -
>>>>> -
>>>>> -/**
>>>>>   * View1<Field, S1> specialization for indexing a field with a
>>> single
>>>>> domain.
>>>>> - *
>>>>> - * Any changes to View1 should also be made to AltView1.
>>>>>   */
>>>>>
>>>>>  template<class Mesh, class T, class EngineTag, class Sub1>
>>>>> @@ -613,8 +555,6 @@
>>>>>
>>>>>  /**
>>>>>   * View1<Field, int> specialization for indexing a field with an
>>> int.
>>>>> - *
>>>>> - * Any changes to View1 should also be made to AltView1.
>>>>>   */
>>>>>
>>>>>  template<class Mesh, class T, class EngineTag>
>>>>> @@ -658,71 +598,6 @@
>>>>>
>>>>>
>>>>>  /**
>>>>> - * AltView1 avoids an instantiation problem that arises when two
>>>>> - * classes use each other.  This class's definition should be
>>> exactly
>>>>> - * the same as View1 except omitting member functions.
>>>>> - *
>>>>> - * Do NOT explicitly instantiate this class.
>>>>> - */
>>>>> -
>>>>> -template<class FieldTag, class DomainTag>
>>>>> -struct AltView1;
>>>>> -
>>>>> -template<class Mesh, class T, class EngineTag, class Sub1>
>>>>> -struct AltView1<Field<Mesh, T, EngineTag>, Sub1>
>>>>> -{
>>>>> -  // Convenience typedef for the thing we're taking a view of.
>>>>> -
>>>>> -  typedef Field<Mesh, T, EngineTag> Subject_t;
>>>>> -
>>>>> -  // Deduce domains for the output type.
>>>>> -  // At some point, we need to fix NewDomain1; until then, use
>>>>> -  // the temporary version from NewDomain.h.
>>>>> -
>>>>> -  typedef typename Subject_t::Domain_t Domain_t;
>>>>> -  typedef TemporaryNewDomain1<Domain_t, Sub1> NewDomain_t;
>>>>> -  typedef typename NewDomain_t::SliceType_t SDomain_t;
>>>>> -
>>>>> -  // Deduce appropriate version of implementation to dispatch to.
>>>>> -
>>>>> -  enum { sv = DomainTraits<SDomain_t>::singleValued };
>>>>> -  typedef AltView1Implementation<Subject_t, SDomain_t, sv>
>>> Dispatch_t;
>>>>> -
>>>>> -  // The optimized domain combiner.
>>>>> -
>>>>> -  typedef CombineDomainOpt<NewDomain_t, sv> Combine_t;
>>>>> -
>>>>> -  // The return types.
>>>>> -
>>>>> -  typedef typename Dispatch_t::ReadType_t ReadType_t;
>>>>> -  typedef typename Dispatch_t::Type_t Type_t;
>>>>> -};
>>>>> -
>>>>> -
>>>>> -/**
>>>>> - * AltView1 avoids an instantiation problem that arises when two
>>>>> - * classes use each other.  This class's definition should be
>>> exactly
>>>>> - * the same as View1 except omitting member functions.
>>>>> - *
>>>>> - * Do NOT explicitly instantiate this class.
>>>>> - */
>>>>> -
>>>>> -template<class Mesh, class T, class EngineTag>
>>>>> -struct AltView1<Field<Mesh, T, EngineTag>, int>
>>>>> -{
>>>>> -  // Convenience typedef for the thing we're taking a view of.
>>>>> -
>>>>> -  typedef Field<Mesh, T, EngineTag> Subject_t;
>>>>> -
>>>>> -  // The return types.
>>>>> -
>>>>> -  typedef typename Subject_t::Element_t ReadType_t;
>>>>> -  typedef typename Subject_t::ElementRef_t Type_t;
>>>>> -
>>>>> -};
>>>>> -
>>>>> -
>>>>> -/**
>>>>>   * View2<Field, S1, S2> specialization for indexing a field with  
>>>>> two
>>>>>   * domains.
>>>>>   */
>>>>> @@ -1455,14 +1330,14 @@
>>>>>    /// point fields the viewing domain is an actual centering  
>>>>> domain.
>>>>>    //@{
>>>>>
>>>>> -  inline typename AltView1<This_t, Domain_t>::ReadType_t
>>>>> +  inline typename View1<This_t, Domain_t>::ReadType_t
>>>>>    read() const
>>>>>      {
>>>>>        typedef View1<This_t, Domain_t> Ret_t;
>>>>>        return Ret_t::makeRead(*this, physicalDomain());
>>>>>      }
>>>>>
>>>>> -  inline typename AltView1<This_t, Domain_t>::ReadType_t
>>>>> +  inline typename View1<This_t, Domain_t>::ReadType_t
>>>>>    readAll() const
>>>>>      {
>>>>>        typedef View1<This_t, Domain_t> Ret_t;
>>>>> @@ -1470,7 +1345,7 @@
>>>>>      }
>>>>>
>>>>>    template<class Sub1>
>>>>> -  inline typename AltView1<This_t, Sub1>::ReadType_t
>>>>> +  inline typename View1<This_t, Sub1>::ReadType_t
>>>>>    read(const Sub1 &s1) const
>>>>>      {
>>>>>        typedef View1<This_t, Sub1> Ret_t;
>>>>> @@ -1493,14 +1368,14 @@
>>>>>        return Ret_t::makeRead(*this, s1, s2, s3);
>>>>>      }
>>>>>
>>>>> -  inline typename AltView1<This_t, Domain_t>::Type_t
>>>>> +  inline typename View1<This_t, Domain_t>::Type_t
>>>>>    operator()() const
>>>>>      {
>>>>>        typedef View1<This_t, Domain_t> Ret_t;
>>>>>        return Ret_t::make(*this, physicalDomain());
>>>>>      }
>>>>>
>>>>> -  inline typename AltView1<This_t, Domain_t>::Type_t
>>>>> +  inline typename View1<This_t, Domain_t>::Type_t
>>>>>    all() const
>>>>>      {
>>>>>        typedef View1<This_t, Domain_t> Ret_t;
>>>>> @@ -1508,7 +1383,7 @@
>>>>>      }
>>>>>
>>>>>    template<class Sub1>
>>>>> -  inline typename AltView1<This_t, Sub1>::Type_t
>>>>> +  inline typename View1<This_t, Sub1>::Type_t
>>>>>    operator()(const Sub1 &s1) const
>>>>>      {
>>>>>        typedef View1<This_t, Sub1> Ret_t;
>>>> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
>>>> <HTML>
>>>> <HEAD>
>>>> <META HTTP-EQUIV="Content-Type" CONTENT="text/html;  
>>>> charset=us-ascii">
>>>> <META NAME="Generator" CONTENT="MS Exchange Server version
>>> 5.5.2653.12">
>>>> <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
>>>> </HEAD>
>>>> <BODY>
>>>>
>>>> <P><FONT SIZE=2>Hi Richard,</FONT>
>>>> </P>
>>>>
>>>> <P><FONT SIZE=2>This tickled a neuron the other day, but I couldn't
>>> recall the details.</FONT>
>>>> </P>
>>>>
>>>> <P><FONT SIZE=2>The AltView classes were put in to reduce link times
>>> and sizes for large codes. The classes that have enums end up having  
>>> a
>>> link-time cost, both in space and time. I believe this refactoring  
>>> was
>>> done to reduce the cardinality of classes having the &quot;sv&quot;  
>>> enum.
>>> My recollection is that this, and other similar  
>>> &quot;optimizations&quot;,
>>> had a pretty substantial impact on link-time for Blanca. Unless  
>>> these are
>>> hurting something else, I would tend to leave them in. </FONT></P>
>>>>
>>>> <P><FONT SIZE=2>Does the CodeSourcery CVS repository have complete  
>>>> CVS
>>> history? (i.e. did we copy the repository, or just the head  
>>> version?) This
>>> should have been easy to determine via CVS. </FONT></P>
>>>>
>>>> <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT  
>>>> SIZE=2>Jim</FONT>
>>>> </P>
>>>>
>>>> <P><FONT  
>>>> SIZE=2>-------------------------------------------------------
>>> -----------------</FONT>
>>>> <BR><FONT SIZE=2>James A.
>>> Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>>> &nbsp;&nbsp
>>> ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>>> &nbsp;&
>>> nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp;  
>>> jimc at numerix.com</FONT>
>>>> <BR><FONT SIZE=2>NumeriX,
>>> LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>>> &nbsp;&nbsp
>>> ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>>> &nbsp;&
>>> nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:&nbsp; (505)  
>>> 424-
>>> 4477 x104</FONT>
>>>> <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
>>>> <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
>>>> <BR><FONT SIZE=2>&nbsp;</FONT>
>>>> </P>
>>>>
>>>> <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
>>>> <BR><FONT SIZE=2>&gt; From: Richard Guenther [<A
>>> HREF="mailto:rguenth at tat.physik.uni-
>>> tuebingen.de">mailto:rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
>>>> <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 3:29 AM</FONT>
>>>> <BR><FONT SIZE=2>&gt; To: pooma-dev at pooma.codesourcery.com</FONT>
>>>> <BR><FONT SIZE=2>&gt; Cc: Jeffrey D. Oldham</FONT>
>>>> <BR><FONT SIZE=2>&gt; Subject: Re: [pooma-dev] AltView*  
>>>> classes</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; On Tue, 2 Mar 2004, Richard Guenther
>>> wrote:</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; On Fri, 27 Feb 2004, Richard Guenther
>>> wrote:</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; &gt; Hi!</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; &gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; &gt; Does anyone remember the exact  
>>>> reason
>>> for the existance of the</FONT>
>>>> <BR><FONT SIZE=2>&gt; AltView*</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; &gt; classes in Array.h and  
>>>> Field.h?&nbsp;
>>> Removing them and fixing their usage</FONT>
>>>> <BR><FONT SIZE=2>&gt; to</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; &gt; use View* seems to work (full test  
>>>> with
>>> gcc 3.3 and 3.4 in progress).</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; Testing completed with no new
>>> failures.&nbsp; Would it be ok to remove those</FONT>
>>>> <BR><FONT SIZE=2>&gt; &gt; AltView* classes?</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; Which would be...</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; Ok?</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; Richard.</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; 2004Mar02&nbsp; Richard Guenther
>>> &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *
>>> src/Array/Array.h: remove all traces of AltView0 class.</FONT>
>>>> <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> src/Field/Field.h:
>>> remove all traces of AltView1 and</FONT>
>>>> <BR><FONT SIZE=2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
>>> AltView1Implementation classes.</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; ===== Array/Array.h 1.14 vs edited  
>>>> =====</FONT>
>>>> <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16  
>>>> 15:19:57
>>> 2003</FONT>
>>>> <BR><FONT SIZE=2>&gt; +++
>>> edited/Array/Array.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
>>> 11:24:14 2004</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -649,8 +649,6 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; // an existing engine cannot be any  
>>>> kind of
>>> slice domain.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; // Also, bounds checking would make no
>>> sense because it would</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; // reduce to contains(a.domain(),
>>> a.domain());</FONT>
>>>> <BR><FONT SIZE=2>&gt; -//</FONT>
>>>> <BR><FONT SIZE=2>&gt; -// Any changes to this class should also be  
>>>> made
>>> to AltView0.</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
>>> EngineTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; struct View0&lt;Array&lt;Dim, T,
>>> EngineTag&gt; &gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -695,41 +693,6 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; };</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -// AltView0 avoids an instantiation problem  
>>>> that
>>> arises when two</FONT>
>>>> <BR><FONT SIZE=2>&gt; -// classes use each other.&nbsp; This class's
>>> definition should be exactly</FONT>
>>>> <BR><FONT SIZE=2>&gt; -// the same as View0 except omitting member
>>> functions.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -//</FONT>
>>>> <BR><FONT SIZE=2>&gt; -// Do NOT explicitly instantiate this
>>> class.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class ArrayTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView0;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;int Dim, class T, class
>>> EngineTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView0&lt;Array&lt;Dim, T,
>>> EngineTag&gt; &gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
>>> we're taking a view of.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;Dim, T, EngineTag&gt;
>>> Subject_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
>>> type.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
>>> NewDomain1; until then, use</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
>>> Array.h.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
>>> Engine_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
>>> Domain_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the template parameters for  
>>>> the
>>> output type.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> NewEngine&lt;Engine_t,
>>> Domain_t&gt;::Type_t NewEngine_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; enum { newDim =  
>>>> NewEngine_t::dimensions
>>> };</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
>>> NewEngineTag_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Array&lt;newDim, T,
>>> NewEngineTag_t&gt; Type_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Type_t ReadType_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -};</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; template&lt;int Dim, class T, class
>>> EngineTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; struct View1&lt;Array&lt;Dim, T,
>>> EngineTag&gt;, int&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1864,7 +1827,7 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// A zero-argument version  
>>>> of
>>> operator(), which takes a view of</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// array's domain, is also
>>> supplied.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typename
>>> AltView0&lt;This_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; typename
>>> View0&lt;This_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View0&lt;This_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1934,7 +1897,7 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> return
>>> Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typename
>>> AltView0&lt;This_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; typename
>>> View0&lt;This_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View0&lt;This_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; ===== Field/Field.h 1.14 vs edited  
>>>> =====</FONT>
>>>> <BR><FONT SIZE=2>&gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16  
>>>> 15:20:00
>>> 2003</FONT>
>>>> <BR><FONT SIZE=2>&gt; +++
>>> edited/Field/Field.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tue Mar&nbsp; 2
>>> 11:25:22 2004</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -269,9 +269,6 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1Implementation&lt;Field, D,
>>> SV&gt; specialization for indexing a field</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * with a single domain. There is a
>>> single-valued version (SV == true)</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * and a multi-valued version (SV  
>>>> ==
>>> false).</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Any changes to View1Implementation should
>>> also be made to</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * AltView1Implementation.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; // Single-valued version. Handles  
>>>> scalars
>>> and Locs.</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -508,62 +505,7 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * AltView1Implementation avoids an
>>> instantiation problem that arises</FONT>
>>>> <BR><FONT SIZE=2>&gt; when two</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
>>> definition should be exactly</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * the same as View1Implementation except
>>> omitting member functions.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
>>> class.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - */</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -// Single-valued version. Handles scalars and
>>> Locs.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class Subject, class Domain, bool
>>> SV&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView1Implementation;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
>>> EngineTag, class Domain&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct  
>>>> AltView1Implementation&lt;Field&lt;Mesh,
>>> T, EngineTag&gt;, Domain, true&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
>>> we're taking a view of.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T,  
>>>> EngineTag&gt;
>>> Subject_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The return types are pretty simple
>>> here.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
>>> ReadType_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> Subject_t::ElementRef_t
>>> Type_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -};</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
>>> EngineTag, class Domain&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct  
>>>> AltView1Implementation&lt;Field&lt;Mesh,
>>> T, EngineTag&gt;, Domain, false&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
>>> we're taking a view of.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T,  
>>>> EngineTag&gt;
>>> Subject_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
>>> type.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Engine_t
>>> Engine_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> NewEngine&lt;Engine_t,
>>> Domain&gt;::Type_t NewEngine_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> NewEngine_t::Element_t
>>> NewT_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename NewEngine_t::Tag_t
>>> NewEngineTag_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce the new Mesh.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;
>>> NewMeshTag&lt;NewEngine_t::dimensions, Mesh,  
>>> Domain&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
>>> NewMeshTag_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The output types.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
>>> NewEngineTag_t&gt; ReadType_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;NewMeshTag_t, NewT_t,
>>> NewEngineTag_t&gt; Type_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -};</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -/**</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, S1&gt;
>>> specialization for indexing a field with a single</FONT>
>>>> <BR><FONT SIZE=2>&gt; domain.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made  
>>>> to
>>> AltView1.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
>>> EngineTag, class Sub1&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -613,8 +555,6 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View1&lt;Field, int&gt;
>>> specialization for indexing a field with an int.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Any changes to View1 should also be made  
>>>> to
>>> AltView1.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; template&lt;class Mesh, class T, class
>>> EngineTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -658,71 +598,6 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp; /**</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem  
>>>> that
>>> arises when two</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
>>> definition should be exactly</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
>>> functions.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
>>> class.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - */</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class FieldTag, class
>>> DomainTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView1;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
>>> EngineTag, class Sub1&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
>>> EngineTag&gt;, Sub1&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
>>> we're taking a view of.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T,  
>>>> EngineTag&gt;
>>> Subject_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce domains for the output
>>> type.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // At some point, we need to fix
>>> NewDomain1; until then, use</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // the temporary version from
>>> NewDomain.h.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Domain_t
>>> Domain_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef  
>>>> TemporaryNewDomain1&lt;Domain_t,
>>> Sub1&gt; NewDomain_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> NewDomain_t::SliceType_t
>>> SDomain_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Deduce appropriate version of
>>> implementation to dispatch to.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; enum { sv =
>>> DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef
>>> AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt;  
>>> Dispatch_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The optimized domain  
>>>> combiner.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef  
>>>> CombineDomainOpt&lt;NewDomain_t,
>>> sv&gt; Combine_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> Dispatch_t::ReadType_t
>>> ReadType_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Dispatch_t::Type_t
>>> Type_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -};</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -/**</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * AltView1 avoids an instantiation problem  
>>>> that
>>> arises when two</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * classes use each other.&nbsp; This class's
>>> definition should be exactly</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * the same as View1 except omitting member
>>> functions.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - *</FONT>
>>>> <BR><FONT SIZE=2>&gt; - * Do NOT explicitly instantiate this
>>> class.</FONT>
>>>> <BR><FONT SIZE=2>&gt; - */</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -template&lt;class Mesh, class T, class
>>> EngineTag&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -struct AltView1&lt;Field&lt;Mesh, T,
>>> EngineTag&gt;, int&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -{</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // Convenience typedef for the thing
>>> we're taking a view of.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef Field&lt;Mesh, T,  
>>>> EngineTag&gt;
>>> Subject_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; // The return types.</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename Subject_t::Element_t
>>> ReadType_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; typedef typename  
>>>> Subject_t::ElementRef_t
>>> Type_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -};</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -</FONT>
>>>> <BR><FONT SIZE=2>&gt; -/**</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * View2&lt;Field, S1, S2&gt;
>>> specialization for indexing a field with two</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; * domains.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp; */</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1455,14 +1330,14 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; /// point fields the viewing
>>> domain is an actual centering domain.</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Domain_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Domain_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> return
>>> Ret_t::makeRead(*this, physicalDomain());</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Domain_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Domain_t&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; readAll() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1470,7 +1345,7 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
>>> Sub1&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Sub1&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Sub1&gt;::ReadType_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; read(const Sub1 &amp;s1)
>>> const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1493,14 +1368,14 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> return
>>> Ret_t::makeRead(*this, s1, s2, s3);</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Domain_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Domain_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> return
>>> Ret_t::make(*this, physicalDomain());</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Domain_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Domain_t&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; all() const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>>>> <BR><FONT SIZE=2>&gt; @@ -1508,7 +1383,7 @@</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</FONT>
>>>> <BR><FONT SIZE=2>&gt; </FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; template&lt;class
>>> Sub1&gt;</FONT>
>>>> <BR><FONT SIZE=2>&gt; -&nbsp; inline typename AltView1&lt;This_t,
>>> Sub1&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt; +&nbsp; inline typename View1&lt;This_t,
>>> Sub1&gt;::Type_t</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp; operator()(const Sub1  
>>>> &amp;s1)
>>> const</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</FONT>
>>>> <BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>>>> typedef
>>> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>>>> </P>
>>>>
>>>> </BODY>
>>>> </HTML>
>> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
>> <HTML>
>> <HEAD>
>> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
>> <META NAME="Generator" CONTENT="MS Exchange Server version  
>> 5.5.2653.12">
>> <TITLE>RE: [pooma-dev] AltView* classes</TITLE>
>> </HEAD>
>> <BODY>
>>
>> <P><FONT SIZE=2>OK - cool. Thanks for chipping in Dave. You're  
>> neurons are obviously less rusty than mine. :)</FONT>
>> </P>
>>
>> <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>Jim</FONT>
>> </P>
>>
>> <P><FONT  
>> SIZE=2>--------------------------------------------------------------- 
>> ---------</FONT>
>> <BR><FONT SIZE=2>James A.  
>> Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email:&nbsp;&nbsp;&nbsp;&nbsp;  
>> jimc at numerix.com</FONT>
>> <BR><FONT SIZE=2>NumeriX,  
>> LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> phone:&nbsp; (505) 424-4477 x104</FONT>
>> <BR><FONT SIZE=2>2960 Rodeo Park Dr. W.</FONT>
>> <BR><FONT SIZE=2>Santa Fe, NM 87505</FONT>
>> <BR><FONT SIZE=2>&nbsp;</FONT>
>> </P>
>>
>> <P><FONT SIZE=2>&gt; -----Original Message-----</FONT>
>> <BR><FONT SIZE=2>&gt; From: Dave Nystrom [<A  
>> HREF="mailto:wdn at lanl.gov">mailto:wdn at lanl.gov</A>]</FONT>
>> <BR><FONT SIZE=2>&gt; Sent: Tuesday, March 02, 2004 10:00 AM</FONT>
>> <BR><FONT SIZE=2>&gt; To: James Crotinger</FONT>
>> <BR><FONT SIZE=2>&gt; Cc: 'Richard Guenther';  
>> 'pooma-dev at pooma.codesourcery.com'; 'Jeffrey D.</FONT>
>> <BR><FONT SIZE=2>&gt; Oldham'; John Hall; Dave Nystrom; Dave  
>> Nystrom</FONT>
>> <BR><FONT SIZE=2>&gt; Subject: RE: [pooma-dev] AltView* classes</FONT>
>> <BR><FONT SIZE=2>&gt; </FONT>
>> <BR><FONT SIZE=2>&gt; These AltView classes were put in by Jeffrey  
>> Oldham to fix a problem that</FONT>
>> <BR><FONT SIZE=2>&gt; I</FONT>
>> <BR><FONT SIZE=2>&gt; was having trying to explicitly instantiate all  
>> the Pooma classes and</FONT>
>> <BR><FONT SIZE=2>&gt; functions that Blanca code was using.&nbsp;  
>> Basically, the way the Pooma 2</FONT>
>> <BR><FONT SIZE=2>&gt; Field</FONT>
>> <BR><FONT SIZE=2>&gt; class was originally written, we were getting  
>> one of these &quot;sv&quot; enums</FONT>
>> <BR><FONT SIZE=2>&gt; instantiated for every unique expression which  
>> we had in our source code</FONT>
>> <BR><FONT SIZE=2>&gt; base.&nbsp; I was unable to explicitly  
>> instantiate these &quot;sv&quot; enums the way the</FONT>
>> <BR><FONT SIZE=2>&gt; code was originally written because of some  
>> issue which Arch Robison of</FONT>
>> <BR><FONT SIZE=2>&gt; Kuck</FONT>
>> <BR><FONT SIZE=2>&gt; and Associates (now Intel) identified -  
>> basically the code in it's</FONT>
>> <BR><FONT SIZE=2>&gt; original</FONT>
>> <BR><FONT SIZE=2>&gt; form violated some corner case of the C++  
>> standard according to Arch.</FONT>
>> <BR><FONT SIZE=2>&gt; Jeffrey fixed this problem by adding the  
>> AltView class and then I was able</FONT>
>> <BR><FONT SIZE=2>&gt; to</FONT>
>> <BR><FONT SIZE=2>&gt; perform the explicit instantiations that I  
>> needed.</FONT>
>> <BR><FONT SIZE=2>&gt; </FONT>
>> <BR><FONT SIZE=2>&gt; However, I believe Jeffrey or someone else has  
>> gone through the code and</FONT>
>> <BR><FONT SIZE=2>&gt; replaced the &quot;sv&quot; enums with some  
>> other construct which does not have the</FONT>
>> <BR><FONT SIZE=2>&gt; explicit instantiation difficulties that the  
>> &quot;sv&quot; enums had.&nbsp; So, I think</FONT>
>> <BR><FONT SIZE=2>&gt; that it is probably okay to remove the AltView  
>> classes and that this would</FONT>
>> <BR><FONT SIZE=2>&gt; clean up the code considerably.&nbsp; I may  
>> revisit all this explicit</FONT>
>> <BR><FONT SIZE=2>&gt; instantiation stuff sometime in the not to  
>> distant future on a hobby basis</FONT>
>> <BR><FONT SIZE=2>&gt; (weird hobby, huh) and if I encounter  
>> difficulties being able to</FONT>
>> <BR><FONT SIZE=2>&gt; explicitly</FONT>
>> <BR><FONT SIZE=2>&gt; instantiate anything, I could then raise it as  
>> an issue at that time.</FONT>
>> <BR><FONT SIZE=2>&gt; </FONT>
>> <BR><FONT SIZE=2>&gt; In summary, the AltView classes were added by  
>> Jeffrey to fix an explicit</FONT>
>> <BR><FONT SIZE=2>&gt; instantiation problem that I think no longer  
>> exists and I am in favor of</FONT>
>> <BR><FONT SIZE=2>&gt; now</FONT>
>> <BR><FONT SIZE=2>&gt; removing them in the interest of cleaning up  
>> the code as much as possible.</FONT>
>> <BR><FONT SIZE=2>&gt; </FONT>
>> <BR><FONT SIZE=2>&gt; --</FONT>
>> <BR><FONT SIZE=2>&gt; Dave Nystrom&nbsp;  
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email: wdn at lanl.gov</FONT>
>> <BR><FONT SIZE=2>&gt; LANL X-2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; phone:  
>> 505-667-7913&nbsp;&nbsp;&nbsp;&nbsp; fax: 505-665-2227</FONT>
>> <BR><FONT SIZE=2>&gt; </FONT>
>> <BR><FONT SIZE=2>&gt; James Crotinger writes:</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; Hi Richard,</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; This tickled a neuron the other day,  
>> but I couldn't recall the details.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; The AltView classes were put in to  
>> reduce link times and sizes for</FONT>
>> <BR><FONT SIZE=2>&gt; large</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; codes. The classes that have enums  
>> end up having a link-time cost, both</FONT>
>> <BR><FONT SIZE=2>&gt; in</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; space and time. I believe this  
>> refactoring was done to reduce the</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; cardinality of classes having the  
>> &quot;sv&quot; enum. My recollection is that</FONT>
>> <BR><FONT SIZE=2>&gt; this,</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; and other similar  
>> &quot;optimizations&quot;, had a pretty substantial impact on</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; link-time for Blanca. Unless these  
>> are hurting something else, I would</FONT>
>> <BR><FONT SIZE=2>&gt; tend</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; to leave them in.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; Does the CodeSourcery CVS repository  
>> have complete CVS history? (i.e.</FONT>
>> <BR><FONT SIZE=2>&gt; did we</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; copy the repository, or just the  
>> head version?) This should have been</FONT>
>> <BR><FONT SIZE=2>&gt; easy</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; to determine via CVS.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &nbsp;&nbsp; Jim</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> ---------------------------------------------------------------------- 
>> -</FONT>
>> <BR><FONT SIZE=2>&gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; James A.  
>> Crotinger&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; email:</FONT>
>> <BR><FONT SIZE=2>&gt; jimc at numerix.com</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; NumeriX,  
>> LLC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
>> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> phone:&nbsp; (505) 424-4477</FONT>
>> <BR><FONT SIZE=2>&gt; x104</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; 2960 Rodeo Park Dr. W.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; Santa Fe, NM 87505</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -----Original  
>> Message-----</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; From: Richard Guenther [<A  
>> HREF="mailto:rguenth at tat.physik.uni-tuebingen.de">mailto: 
>> rguenth at tat.physik.uni-tuebingen.de</A>]</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Sent: Tuesday, March 02, 2004  
>> 3:29 AM</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; To:  
>> pooma-dev at pooma.codesourcery.com</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Cc: Jeffrey D. Oldham</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Subject: Re: [pooma-dev]  
>> AltView* classes</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; On Tue, 2 Mar 2004, Richard  
>> Guenther wrote:</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; On Fri, 27 Feb 2004,  
>> Richard Guenther wrote:</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; Hi!</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; Does anyone remember  
>> the exact reason for the existance of the</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; AltView*</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; classes in Array.h  
>> and Field.h?&nbsp; Removing them and fixing their</FONT>
>> <BR><FONT SIZE=2>&gt; usage</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; to</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; &gt; use View* seems to  
>> work (full test with gcc 3.3 and 3.4 in</FONT>
>> <BR><FONT SIZE=2>&gt; progress).</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; Testing completed with no  
>> new failures.&nbsp; Would it be ok to remove</FONT>
>> <BR><FONT SIZE=2>&gt; those</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; &gt; AltView* classes?</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Which would be...</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Ok?</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; Richard.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; 2004Mar02&nbsp; Richard  
>> Guenther &lt;richard.guenther at uni-tuebingen.de&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; * src/Array/Array.h:  
>> remove all traces of AltView0 class.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; src/Field/Field.h: remove  
>> all traces of AltView1 and</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; AltView1Implementation  
>> classes.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ===== Array/Array.h 1.14 vs  
>> edited =====</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ---  
>> 1.14/r2/src/Array/Array.h&nbsp;&nbsp;&nbsp; Tue Dec 16 15:19:57  
>> 2003</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +++ edited/Array/Array.h Tue  
>> Mar&nbsp; 2 11:24:14 2004</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -649,8 +649,6 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // an existing engine  
>> cannot be any kind of slice domain.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // Also, bounds checking  
>> would make no sense because it would</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // reduce to  
>> contains(a.domain(), a.domain());</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -//</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Any changes to this class  
>> should also be made to AltView0.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;int Dim,  
>> class T, class EngineTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; struct  
>> View0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -695,41 +693,6 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; };</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// AltView0 avoids an  
>> instantiation problem that arises when two</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// classes use each  
>> other.&nbsp; This class's definition should be</FONT>
>> <BR><FONT SIZE=2>&gt; exactly</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// the same as View0 except  
>> omitting member functions.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -//</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Do NOT explicitly  
>> instantiate this class.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class  
>> ArrayTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView0;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;int Dim, class T,  
>> class EngineTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView0&lt;Array&lt;Dim, T, EngineTag&gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef  
>> for the thing we're taking a view of.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Array&lt;Dim,  
>> T, EngineTag&gt; Subject_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for  
>> the output type.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // At some point, we  
>> need to fix NewDomain1; until then, use</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // the temporary  
>> version from Array.h.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Engine_t Engine_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Domain_t Domain_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce the template  
>> parameters for the output type.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewEngine&lt;Engine_t, Domain_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngine_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; enum { newDim =  
>> NewEngine_t::dimensions };</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewEngine_t::Tag_t NewEngineTag_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The output  
>> types.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> Array&lt;newDim, T, NewEngineTag_t&gt; Type_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Type_t  
>> ReadType_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;int Dim,  
>> class T, class EngineTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; struct  
>> View1&lt;Array&lt;Dim, T, EngineTag&gt;, int&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1864,7 +1827,7 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// A  
>> zero-argument version of operator(), which takes a view of</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// array's  
>> domain, is also supplied.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typename  
>> AltView0&lt;This_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; typename  
>> View0&lt;This_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View0&lt;This_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1934,7 +1897,7 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return  
>> Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typename  
>> AltView0&lt;This_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; typename  
>> View0&lt;This_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; operator()()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View0&lt;This_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ===== Field/Field.h 1.14 vs  
>> edited =====</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; ---  
>> 1.14/r2/src/Field/Field.h&nbsp;&nbsp;&nbsp; Tue Dec 16 15:20:00  
>> 2003</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +++ edited/Field/Field.h Tue  
>> Mar&nbsp; 2 11:25:22 2004</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -269,9 +269,6 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; *  
>> View1Implementation&lt;Field, D, SV&gt; specialization for indexing  
>> a</FONT>
>> <BR><FONT SIZE=2>&gt; field</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * with a single  
>> domain. There is a single-valued version (SV ==</FONT>
>> <BR><FONT SIZE=2>&gt; true)</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * and a  
>> multi-valued version (SV == false).</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to  
>> View1Implementation should also be made to</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *  
>> AltView1Implementation.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; // Single-valued version.  
>> Handles scalars and Locs.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -508,62 +505,7 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1Implementation  
>> avoids an instantiation problem that</FONT>
>> <BR><FONT SIZE=2>&gt; arises</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; when two</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each  
>> other.&nbsp; This class's definition should be</FONT>
>> <BR><FONT SIZE=2>&gt; exactly</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as  
>> View1Implementation except omitting member functions.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly  
>> instantiate this class.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -// Single-valued version.  
>> Handles scalars and Locs.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Subject,  
>> class Domain, bool SV&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView1Implementation;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class  
>> T, class EngineTag, class Domain&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;,  
>> Domain,</FONT>
>> <BR><FONT SIZE=2>&gt; true&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef  
>> for the thing we're taking a view of.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh,  
>> T, EngineTag&gt; Subject_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return types are  
>> pretty simple here.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Element_t ReadType_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::ElementRef_t Type_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class  
>> T, class EngineTag, class Domain&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView1Implementation&lt;Field&lt;Mesh, T, EngineTag&gt;,  
>> Domain,</FONT>
>> <BR><FONT SIZE=2>&gt; false&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef  
>> for the thing we're taking a view of.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh,  
>> T, EngineTag&gt; Subject_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for  
>> the output type.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Engine_t Engine_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewEngine&lt;Engine_t, Domain&gt;::Type_t NewEngine_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewEngine_t::Element_t NewT_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewEngine_t::Tag_t NewEngineTag_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce the new  
>> Mesh.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp;&nbsp;&nbsp;  
>> NewMeshTag&lt;NewEngine_t::dimensions, Mesh,  
>> Domain&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> NewMeshTag_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The output  
>> types.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; ReadType_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> Field&lt;NewMeshTag_t, NewT_t, NewEngineTag_t&gt; Type_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View1&lt;Field,  
>> S1&gt; specialization for indexing a field with a</FONT>
>> <BR><FONT SIZE=2>&gt; single</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; domain.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to View1 should  
>> also be made to AltView1.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;class Mesh,  
>> class T, class EngineTag, class Sub1&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -613,8 +555,6 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View1&lt;Field,  
>> int&gt; specialization for indexing a field with an</FONT>
>> <BR><FONT SIZE=2>&gt; int.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Any changes to View1 should  
>> also be made to AltView1.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; template&lt;class Mesh,  
>> class T, class EngineTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -658,71 +598,6 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp; /**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1 avoids an  
>> instantiation problem that arises when two</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each  
>> other.&nbsp; This class's definition should be</FONT>
>> <BR><FONT SIZE=2>&gt; exactly</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as View1 except  
>> omitting member functions.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly  
>> instantiate this class.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class FieldTag,  
>> class DomainTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct AltView1;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class  
>> T, class EngineTag, class Sub1&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, Sub1&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef  
>> for the thing we're taking a view of.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh,  
>> T, EngineTag&gt; Subject_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce domains for  
>> the output type.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // At some point, we  
>> need to fix NewDomain1; until then, use</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // the temporary  
>> version from NewDomain.h.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Domain_t Domain_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> TemporaryNewDomain1&lt;Domain_t, Sub1&gt; NewDomain_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> NewDomain_t::SliceType_t SDomain_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Deduce appropriate  
>> version of implementation to dispatch to.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; enum { sv =  
>> DomainTraits&lt;SDomain_t&gt;::singleValued };</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> AltView1Implementation&lt;Subject_t, SDomain_t, sv&gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Dispatch_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The optimized domain  
>> combiner.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef  
>> CombineDomainOpt&lt;NewDomain_t, sv&gt; Combine_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return  
>> types.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Dispatch_t::ReadType_t ReadType_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Dispatch_t::Type_t Type_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * AltView1 avoids an  
>> instantiation problem that arises when two</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * classes use each  
>> other.&nbsp; This class's definition should be</FONT>
>> <BR><FONT SIZE=2>&gt; exactly</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * the same as View1 except  
>> omitting member functions.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - *</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - * Do NOT explicitly  
>> instantiate this class.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; - */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -template&lt;class Mesh, class  
>> T, class EngineTag&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -struct  
>> AltView1&lt;Field&lt;Mesh, T, EngineTag&gt;, int&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // Convenience typedef  
>> for the thing we're taking a view of.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef Field&lt;Mesh,  
>> T, EngineTag&gt; Subject_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; // The return  
>> types.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::Element_t ReadType_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; typedef typename  
>> Subject_t::ElementRef_t Type_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -};</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -/**</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * View2&lt;Field,  
>> S1, S2&gt; specialization for indexing a field with two</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; * domains.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp; */</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1455,14 +1330,14 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; /// point  
>> fields the viewing domain is an actual centering domain.</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; //@{</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return  
>> Ret_t::makeRead(*this, physicalDomain());</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Domain_t&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; readAll()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1470,7 +1345,7 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;  
>> template&lt;class Sub1&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Sub1&gt;::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; read(const  
>> Sub1 &amp;s1) const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1493,14 +1368,14 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return  
>> Ret_t::makeRead(*this, s1, s2, s3);</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; operator()()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return  
>> Ret_t::make(*this, physicalDomain());</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Domain_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Domain_t&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp; all()  
>> const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Domain_t&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; @@ -1508,7 +1383,7 @@</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> }</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;  
>> template&lt;class Sub1&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; -&nbsp; inline typename  
>> AltView1&lt;This_t, Sub1&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt; +&nbsp; inline typename  
>> View1&lt;This_t, Sub1&gt;::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;  
>> operator()(const Sub1 &amp;s1) const</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
>> {</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; typedef  
>> View1&lt;This_t, Sub1&gt; Ret_t;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;!DOCTYPE HTML PUBLIC  
>> &quot;-//W3C//DTD HTML 3.2//EN&quot;&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;HTML&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;HEAD&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;META  
>> HTTP-EQUIV=&quot;Content-Type&quot; CONTENT=&quot;text/html;  
>> charset=us-ascii&quot;&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;META NAME=&quot;Generator&quot;  
>> CONTENT=&quot;MS Exchange Server version</FONT>
>> <BR><FONT SIZE=2>&gt; 5.5.2653.12&quot;&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;TITLE&gt;RE: [pooma-dev]  
>> AltView* classes&lt;/TITLE&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/HEAD&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BODY&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;Hi  
>> Richard,&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;This  
>> tickled a neuron the other day, but I couldn't</FONT>
>> <BR><FONT SIZE=2>&gt; recall the details.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;The  
>> AltView classes were put in to reduce link times</FONT>
>> <BR><FONT SIZE=2>&gt; and sizes for large codes. The classes that  
>> have enums end up having a</FONT>
>> <BR><FONT SIZE=2>&gt; link-time cost, both in space and time. I  
>> believe this refactoring was</FONT>
>> <BR><FONT SIZE=2>&gt; done to reduce the cardinality of classes  
>> having the &amp;quot;sv&amp;quot; enum.</FONT>
>> <BR><FONT SIZE=2>&gt; My recollection is that this, and other similar  
>> &amp;quot;optimizations&amp;quot;,</FONT>
>> <BR><FONT SIZE=2>&gt; had a pretty substantial impact on link-time  
>> for Blanca. Unless these are</FONT>
>> <BR><FONT SIZE=2>&gt; hurting something else, I would tend to leave  
>> them in. &lt;/FONT&gt;&lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;Does the  
>> CodeSourcery CVS repository have complete CVS</FONT>
>> <BR><FONT SIZE=2>&gt; history? (i.e. did we copy the repository, or  
>> just the head version?) This</FONT>
>> <BR><FONT SIZE=2>&gt; should have been easy to determine via CVS.  
>> &lt;/FONT&gt;&lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;  
>> &lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp; &lt;FONT SIZE=2&gt;Jim&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT  
>> SIZE=2&gt;-------------------------------------------------------</ 
>> FONT>
>> <BR><FONT SIZE=2>&gt; -----------------&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;James  
>> A.</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> Crotinger&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> ;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp; 
>> nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;</FONT>
>> <BR><FONT SIZE=2>&gt; nbsp;&amp;nbsp;&amp;nbsp;  
>> email:&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> jimc at numerix.com&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;NumeriX,</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> LLC&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp; 
>> nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> ;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp; 
>> nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp; phone:&amp;nbsp; (505) 424-</FONT>
>> <BR><FONT SIZE=2>&gt; 4477 x104&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;2960  
>> Rodeo Park Dr. W.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT SIZE=2&gt;Santa  
>> Fe, NM 87505&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;nbsp;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;P&gt;&lt;FONT SIZE=2&gt;&amp;gt;  
>> -----Original Message-----&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; From: Richard Guenther [&lt;A</FONT>
>> <BR><FONT SIZE=2>&gt; HREF=&quot;<A  
>> HREF="mailto:rguenth at tat.physik.uni-">mailto:rguenth at tat.physik.uni- 
>> </A></FONT>
>> <BR><FONT SIZE=2>&gt; tuebingen.de&quot;&gt;<A  
>> HREF="mailto:rguenth at tat.physik.uni-tuebingen.de">mailto: 
>> rguenth at tat.physik.uni-tuebingen.de</A>&lt;/A&gt;]&lt;/FONT&gt;</ 
>> FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Sent: Tuesday, March 02, 2004 3:29  
>> AM&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; To:  
>> pooma-dev at pooma.codesourcery.com&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Cc: Jeffrey D. Oldham&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Subject: Re: [pooma-dev] AltView*  
>> classes&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; On Tue, 2 Mar 2004, Richard Guenther</FONT>
>> <BR><FONT SIZE=2>&gt; wrote:&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; On Fri, 27 Feb 2004, Richard  
>> Guenther</FONT>
>> <BR><FONT SIZE=2>&gt; wrote:&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; Hi!&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; Does anyone remember the exact  
>> reason</FONT>
>> <BR><FONT SIZE=2>&gt; for the existance of the&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; AltView*&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; classes in Array.h and  
>> Field.h?&amp;nbsp;</FONT>
>> <BR><FONT SIZE=2>&gt; Removing them and fixing their  
>> usage&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; to&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; &amp;gt; use View* seems to work (full  
>> test with</FONT>
>> <BR><FONT SIZE=2>&gt; gcc 3.3 and 3.4 in  
>> progress).&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; Testing completed with no new</FONT>
>> <BR><FONT SIZE=2>&gt; failures.&amp;nbsp; Would it be ok to remove  
>> those&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;gt; AltView* classes?&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Which would be...&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Ok?&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; Richard.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; 2004Mar02&amp;nbsp; Richard Guenther</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> &amp;lt;richard.guenther at uni-tuebingen.de&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> *</FONT>
>> <BR><FONT SIZE=2>&gt; src/Array/Array.h: remove all traces of  
>> AltView0 class.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> src/Field/Field.h:</FONT>
>> <BR><FONT SIZE=2>&gt; remove all traces of AltView1  
>> and&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;  
>> &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
>> <BR><FONT SIZE=2>&gt; AltView1Implementation  
>> classes.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; ===== Array/Array.h 1.14 vs edited  
>> =====&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; --- 1.14/r2/src/Array/Array.h Tue Dec 16  
>> 15:19:57</FONT>
>> <BR><FONT SIZE=2>&gt; 2003&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +++</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> edited/Array/Array.h&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp; 
>> nbsp; Tue Mar&amp;nbsp; 2</FONT>
>> <BR><FONT SIZE=2>&gt; 11:24:14 2004&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -649,8 +649,6 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; // an existing engine cannot be any kind  
>> of</FONT>
>> <BR><FONT SIZE=2>&gt; slice domain.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; // Also, bounds checking would make  
>> no</FONT>
>> <BR><FONT SIZE=2>&gt; sense because it would&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; // reduce to contains(a.domain(),</FONT>
>> <BR><FONT SIZE=2>&gt; a.domain());&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -//&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// Any changes to this class should also be  
>> made</FONT>
>> <BR><FONT SIZE=2>&gt; to AltView0.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;int Dim, class T,  
>> class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; struct View0&amp;lt;Array&amp;lt;Dim,  
>> T,</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -695,41 +693,6 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; };&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// AltView0 avoids an instantiation problem  
>> that</FONT>
>> <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// classes use each other.&amp;nbsp; This  
>> class's</FONT>
>> <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// the same as View0 except omitting  
>> member</FONT>
>> <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -//&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// Do NOT explicitly instantiate this</FONT>
>> <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class  
>> ArrayTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct AltView0;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;int Dim, class T, class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct AltView0&amp;lt;Array&amp;lt;Dim,  
>> T,</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt; &amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the  
>> thing</FONT>
>> <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Array&amp;lt;Dim, T,  
>> EngineTag&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the  
>> output</FONT>
>> <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // At some point, we need to  
>> fix</FONT>
>> <BR><FONT SIZE=2>&gt; NewDomain1; until then, use&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // the temporary version from</FONT>
>> <BR><FONT SIZE=2>&gt; Array.h.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Engine_t</FONT>
>> <BR><FONT SIZE=2>&gt; Engine_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Domain_t</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce the template parameters for  
>> the</FONT>
>> <BR><FONT SIZE=2>&gt; output type.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewEngine&amp;lt;Engine_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t  
>> NewEngine_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; enum { newDim =  
>> NewEngine_t::dimensions</FONT>
>> <BR><FONT SIZE=2>&gt; };&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewEngine_t::Tag_t</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngineTag_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The output  
>> types.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Array&amp;lt;newDim, T,</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt;  
>> Type_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Type_t  
>> ReadType_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;int Dim, class T,  
>> class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; struct View1&amp;lt;Array&amp;lt;Dim,  
>> T,</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;,  
>> int&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1864,7 +1827,7 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// A zero-argument  
>> version of</FONT>
>> <BR><FONT SIZE=2>&gt; operator(), which takes a view  
>> of&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// array's domain,  
>> is also</FONT>
>> <BR><FONT SIZE=2>&gt; supplied.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> //@{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typename</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> AltView0&amp;lt;This_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; typename</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> View0&amp;lt;This_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1934,7 +1897,7 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; return</FONT>
>> <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6,  
>> s7);&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typename</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> AltView0&amp;lt;This_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; typename</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> View0&amp;lt;This_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View0&amp;lt;This_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; ===== Field/Field.h 1.14 vs edited  
>> =====&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; --- 1.14/r2/src/Field/Field.h Tue Dec 16  
>> 15:20:00</FONT>
>> <BR><FONT SIZE=2>&gt; 2003&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +++</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> edited/Field/Field.h&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp; 
>> nbsp; Tue Mar&amp;nbsp; 2</FONT>
>> <BR><FONT SIZE=2>&gt; 11:25:22 2004&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -269,9 +269,6 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; *  
>> View1Implementation&amp;lt;Field, D,</FONT>
>> <BR><FONT SIZE=2>&gt; SV&amp;gt; specialization for indexing a  
>> field&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * with a single domain. There  
>> is a</FONT>
>> <BR><FONT SIZE=2>&gt; single-valued version (SV ==  
>> true)&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * and a multi-valued version  
>> (SV ==</FONT>
>> <BR><FONT SIZE=2>&gt; false).&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Any changes to View1Implementation  
>> should</FONT>
>> <BR><FONT SIZE=2>&gt; also be made to&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * AltView1Implementation.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; // Single-valued version. Handles  
>> scalars</FONT>
>> <BR><FONT SIZE=2>&gt; and Locs.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -508,62 +505,7 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * AltView1Implementation avoids an</FONT>
>> <BR><FONT SIZE=2>&gt; instantiation problem that  
>> arises&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; when two&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This  
>> class's</FONT>
>> <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * the same as View1Implementation except</FONT>
>> <BR><FONT SIZE=2>&gt; omitting member functions.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
>> <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -// Single-valued version. Handles scalars  
>> and</FONT>
>> <BR><FONT SIZE=2>&gt; Locs.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class Subject, class Domain,  
>> bool</FONT>
>> <BR><FONT SIZE=2>&gt; SV&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct  
>> AltView1Implementation;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag, class  
>> Domain&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct  
>> AltView1Implementation&amp;lt;Field&amp;lt;Mesh,</FONT>
>> <BR><FONT SIZE=2>&gt; T, EngineTag&amp;gt;, Domain,  
>> true&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the  
>> thing</FONT>
>> <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T,  
>> EngineTag&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return types are pretty  
>> simple</FONT>
>> <BR><FONT SIZE=2>&gt; here.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Element_t</FONT>
>> <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::ElementRef_t</FONT>
>> <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag, class  
>> Domain&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct  
>> AltView1Implementation&amp;lt;Field&amp;lt;Mesh,</FONT>
>> <BR><FONT SIZE=2>&gt; T, EngineTag&amp;gt;, Domain,  
>> false&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the  
>> thing</FONT>
>> <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T,  
>> EngineTag&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the  
>> output</FONT>
>> <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Engine_t</FONT>
>> <BR><FONT SIZE=2>&gt; Engine_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewEngine&amp;lt;Engine_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain&amp;gt;::Type_t  
>> NewEngine_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewEngine_t::Element_t</FONT>
>> <BR><FONT SIZE=2>&gt; NewT_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewEngine_t::Tag_t</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngineTag_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce the new  
>> Mesh.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
>> <BR><FONT SIZE=2>&gt; NewMeshTag&amp;lt;NewEngine_t::dimensions,  
>> Mesh, Domain&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;  
>> -&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;</FONT>
>> <BR><FONT SIZE=2>&gt; NewMeshTag_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The output  
>> types.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;NewMeshTag_t,  
>> NewT_t,</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt;  
>> ReadType_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;NewMeshTag_t,  
>> NewT_t,</FONT>
>> <BR><FONT SIZE=2>&gt; NewEngineTag_t&amp;gt;  
>> Type_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View1&amp;lt;Field,  
>> S1&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; specialization for indexing a field with a  
>> single&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; domain.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Any changes to View1 should also be made  
>> to</FONT>
>> <BR><FONT SIZE=2>&gt; AltView1.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;class Mesh, class T,  
>> class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag, class  
>> Sub1&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -613,8 +555,6 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View1&amp;lt;Field,  
>> int&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; specialization for indexing a field with an  
>> int.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Any changes to View1 should also be made  
>> to</FONT>
>> <BR><FONT SIZE=2>&gt; AltView1.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; template&amp;lt;class Mesh, class T,  
>> class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -658,71 +598,6 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp; /**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * AltView1 avoids an instantiation problem  
>> that</FONT>
>> <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This  
>> class's</FONT>
>> <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * the same as View1 except omitting  
>> member</FONT>
>> <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
>> <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class FieldTag, class</FONT>
>> <BR><FONT SIZE=2>&gt; DomainTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct AltView1;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag, class  
>> Sub1&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct AltView1&amp;lt;Field&amp;lt;Mesh,  
>> T,</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;,  
>> Sub1&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the  
>> thing</FONT>
>> <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T,  
>> EngineTag&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce domains for the  
>> output</FONT>
>> <BR><FONT SIZE=2>&gt; type.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // At some point, we need to  
>> fix</FONT>
>> <BR><FONT SIZE=2>&gt; NewDomain1; until then, use&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // the temporary version from</FONT>
>> <BR><FONT SIZE=2>&gt; NewDomain.h.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Domain_t</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef  
>> TemporaryNewDomain1&amp;lt;Domain_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt; NewDomain_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> NewDomain_t::SliceType_t</FONT>
>> <BR><FONT SIZE=2>&gt; SDomain_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Deduce appropriate version  
>> of</FONT>
>> <BR><FONT SIZE=2>&gt; implementation to dispatch  
>> to.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; enum { sv =</FONT>
>> <BR><FONT SIZE=2>&gt;  
>> DomainTraits&amp;lt;SDomain_t&amp;gt;::singleValued  
>> };&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; AltView1Implementation&amp;lt;Subject_t,  
>> SDomain_t, sv&amp;gt; Dispatch_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The optimized domain  
>> combiner.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef  
>> CombineDomainOpt&amp;lt;NewDomain_t,</FONT>
>> <BR><FONT SIZE=2>&gt; sv&amp;gt; Combine_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return  
>> types.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Dispatch_t::ReadType_t</FONT>
>> <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Dispatch_t::Type_t</FONT>
>> <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * AltView1 avoids an instantiation problem  
>> that</FONT>
>> <BR><FONT SIZE=2>&gt; arises when two&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * classes use each other.&amp;nbsp; This  
>> class's</FONT>
>> <BR><FONT SIZE=2>&gt; definition should be exactly&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * the same as View1 except omitting  
>> member</FONT>
>> <BR><FONT SIZE=2>&gt; functions.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - *&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - * Do NOT explicitly instantiate this</FONT>
>> <BR><FONT SIZE=2>&gt; class.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; - */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -template&amp;lt;class Mesh, class T, class</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -struct AltView1&amp;lt;Field&amp;lt;Mesh,  
>> T,</FONT>
>> <BR><FONT SIZE=2>&gt; EngineTag&amp;gt;,  
>> int&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // Convenience typedef for the  
>> thing</FONT>
>> <BR><FONT SIZE=2>&gt; we're taking a view of.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef Field&amp;lt;Mesh, T,  
>> EngineTag&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; Subject_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; // The return  
>> types.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::Element_t</FONT>
>> <BR><FONT SIZE=2>&gt; ReadType_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; typedef typename  
>> Subject_t::ElementRef_t</FONT>
>> <BR><FONT SIZE=2>&gt; Type_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -};&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -/**&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * View2&amp;lt;Field, S1,  
>> S2&amp;gt;</FONT>
>> <BR><FONT SIZE=2>&gt; specialization for indexing a field with  
>> two&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; * domains.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp; */&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1455,14 +1330,14 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; /// point fields the  
>> viewing</FONT>
>> <BR><FONT SIZE=2>&gt; domain is an actual centering  
>> domain.&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> //@{&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; return</FONT>
>> <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this,  
>> physicalDomain());&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; readAll()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1470,7 +1345,7 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> template&amp;lt;class</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::ReadType_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; read(const Sub1  
>> &amp;amp;s1)</FONT>
>> <BR><FONT SIZE=2>&gt; const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Sub1&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1493,14 +1368,14 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; return</FONT>
>> <BR><FONT SIZE=2>&gt; Ret_t::makeRead(*this, s1, s2,  
>> s3);&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; return</FONT>
>> <BR><FONT SIZE=2>&gt; Ret_t::make(*this,  
>> physicalDomain());&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Domain_t&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; all()  
>> const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Domain_t&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; @@ -1508,7 +1383,7 @@&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> }&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; &lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> template&amp;lt;class</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; -&amp;nbsp; inline typename  
>> AltView1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt; +&amp;nbsp; inline typename  
>> View1&amp;lt;This_t,</FONT>
>> <BR><FONT SIZE=2>&gt; Sub1&amp;gt;::Type_t&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; operator()(const  
>> Sub1 &amp;amp;s1)</FONT>
>> <BR><FONT SIZE=2>&gt; const&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;  
>> {&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;BR&gt;&lt;FONT  
>> SIZE=2&gt;&amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 
>> &amp;nbsp;&amp;nbsp; typedef</FONT>
>> <BR><FONT SIZE=2>&gt; View1&amp;lt;This_t, Sub1&amp;gt;  
>> Ret_t;&lt;/FONT&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/P&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/BODY&gt;</FONT>
>> <BR><FONT SIZE=2>&gt;&nbsp; &gt; &lt;/HTML&gt;</FONT>
>> </P>
>>
>> </BODY>
>> </HTML>



From jhall at swcp.com  Tue Mar  2 17:38:51 2004
From: jhall at swcp.com (John H. Hall)
Date: Tue, 2 Mar 2004 10:38:51 -0700
Subject: Releasing Blanca Demo
In-Reply-To: <4044C25B.6030001@tat.physik.uni-tuebingen.de>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com> <16452.49542.996541.986692@bedell.lanl.gov> <4044C25B.6030001@tat.physik.uni-tuebingen.de>
Message-ID: <78561879-6C70-11D8-95A7-000A958E5012@swcp.com>

Richard:
We are working on it. I am the bottleneck right now, but there will be 
a lot more bottlenecks before we get it transferred out of the 
laboratory.
John Hall

On Mar 2, 2004, at 10:20 AM, Richard Guenther wrote:

> Dave Nystrom wrote:
>> No problem.  I think my neurons are less rusty because of my perverse
>> hobby:-).  I've actually compiled the Blanca Demo stuff in the last 
>> year and
>> I try to keep up with evolution of Pooma 2 with the thought that I 
>> will
>> sometime get back to using it.  John, Don and Jean have actually been 
>> doing
>> some work on the source code base in the last year.
>> Also, the Blanca Demo project and it's progeny is the only Blanca 
>> related
>> source code base that to my knowledge ever used Pooma 2.  And 
>> supposedly, the
>> Blanca project is dead and unlikely to use anything that we ever did.
>
> I suppose it is not possible to "release" some of this demo code, if 
> not for "educating of Pooma2" purpose?
>
> Thanks,
> Richard.



From wdn at lanl.gov  Tue Mar  2 17:42:31 2004
From: wdn at lanl.gov (Dave Nystrom)
Date: Tue, 2 Mar 2004 10:42:31 -0700
Subject: [pooma-dev] AltView* classes
In-Reply-To: <4044C25B.6030001@tat.physik.uni-tuebingen.de>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com>
	<16452.49542.996541.986692@bedell.lanl.gov>
	<4044C25B.6030001@tat.physik.uni-tuebingen.de>
Message-ID: <16452.51079.577876.213313@bedell.lanl.gov>

Hi Richard,

John Hall would be the person to discuss this with since he knows more about
the process of getting software at LANL released or open sourced.

Could you comment on this John?

Richard Guenther writes:
 > Dave Nystrom wrote:
 > > No problem.  I think my neurons are less rusty because of my perverse
 > > hobby:-).  I've actually compiled the Blanca Demo stuff in the last year and
 > > I try to keep up with evolution of Pooma 2 with the thought that I will
 > > sometime get back to using it.  John, Don and Jean have actually been doing
 > > some work on the source code base in the last year.
 > > 
 > > Also, the Blanca Demo project and it's progeny is the only Blanca related
 > > source code base that to my knowledge ever used Pooma 2.  And supposedly, the
 > > Blanca project is dead and unlikely to use anything that we ever did.
 > 
 > I suppose it is not possible to "release" some of this demo code, if not 
 > for "educating of Pooma2" purpose?
 > 
 > Thanks,
 > Richard.
 > 

-- 
Dave Nystrom			email: wdn at lanl.gov
LANL X-2			phone: 505-667-7913	fax: 505-665-2227


From wdn at lanl.gov  Tue Mar  2 17:43:57 2004
From: wdn at lanl.gov (Dave Nystrom)
Date: Tue, 2 Mar 2004 10:43:57 -0700
Subject: [pooma-dev] AltView* classes
In-Reply-To: <16452.51079.577876.213313@bedell.lanl.gov>
References: <F871BB04B0EA224A821A5274C31DF315150968@proxim-sf001.santafe.proximation.com>
	<16452.49542.996541.986692@bedell.lanl.gov>
	<4044C25B.6030001@tat.physik.uni-tuebingen.de>
	<16452.51079.577876.213313@bedell.lanl.gov>
Message-ID: <16452.51165.520668.554904@bedell.lanl.gov>

Dave Nystrom writes:
 > Hi Richard,
 > 
 > John Hall would be the person to discuss this with since he knows more about
 > the process of getting software at LANL released or open sourced.
 > 
 > Could you comment on this John?

And I guess he did.

 > Richard Guenther writes:
 >  > Dave Nystrom wrote:
 >  > > No problem.  I think my neurons are less rusty because of my perverse
 >  > > hobby:-).  I've actually compiled the Blanca Demo stuff in the last year and
 >  > > I try to keep up with evolution of Pooma 2 with the thought that I will
 >  > > sometime get back to using it.  John, Don and Jean have actually been doing
 >  > > some work on the source code base in the last year.
 >  > > 
 >  > > Also, the Blanca Demo project and it's progeny is the only Blanca related
 >  > > source code base that to my knowledge ever used Pooma 2.  And supposedly, the
 >  > > Blanca project is dead and unlikely to use anything that we ever did.
 >  > 
 >  > I suppose it is not possible to "release" some of this demo code, if not 
 >  > for "educating of Pooma2" purpose?
 >  > 
 >  > Thanks,
 >  > Richard.
 >  > 
 > 
 > -- 
 > Dave Nystrom			email: wdn at lanl.gov
 > LANL X-2			phone: 505-667-7913	fax: 505-665-2227
 > 

-- 
Dave Nystrom			email: wdn at lanl.gov
LANL X-2			phone: 505-667-7913	fax: 505-665-2227


From rguenth at tat.physik.uni-tuebingen.de  Mon Mar 15 10:28:26 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Mon, 15 Mar 2004 11:28:26 +0100 (CET)
Subject: [PATCH] Add missing #includes
Message-ID: <Pine.LNX.4.53.0403151125100.10629@bellatrix.tat.physik.uni-tuebingen.de>

Hi!

A first step cleaning up #includes.  Makes more headers pass generation of
a precompiled header.  Next step is to remove unnecessary #includes.

Ok?

Richard.


2004Mar15  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Domain/DomainMap.h: add missing #include.
	src/Domain/NewDomain.h: likewise.
	src/Evaluator/MultiArgEvaluator.h: likewise.
	src/Evaluator/MultiArgKernel.h: likewise.
	src/Evaluator/SimpleIntersector.h: likewise.
	src/Functions/MultiArg.h: likewise.

Index: Domain/DomainMap.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Domain/DomainMap.h,v
retrieving revision 1.20
diff -u -u -r1.20 DomainMap.h
--- Domain/DomainMap.h	10 Oct 2003 19:26:43 -0000	1.20
+++ Domain/DomainMap.h	15 Mar 2004 10:24:10 -0000
@@ -58,6 +58,7 @@
 #include <utility>
 #include <list>
 #include <iosfwd>
+#include <iostream>


 ///////////////////////////////////////////////////////////////////////////////
Index: Domain/NewDomain.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Domain/NewDomain.h,v
retrieving revision 1.34
diff -u -u -r1.34 NewDomain.h
--- Domain/NewDomain.h	12 Oct 2003 11:14:38 -0000	1.34
+++ Domain/NewDomain.h	15 Mar 2004 10:24:12 -0000
@@ -65,6 +65,7 @@

 #include "Domain/DomainTraits.h"
 #include "Utilities/PAssert.h"
+#include "Utilities/NoInit.h"

 //-----------------------------------------------------------------------------
 // Forward Declarations:
Index: Evaluator/MultiArgEvaluator.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Evaluator/MultiArgEvaluator.h,v
retrieving revision 1.14
diff -u -u -r1.14 MultiArgEvaluator.h
--- Evaluator/MultiArgEvaluator.h	21 Nov 2003 17:36:10 -0000	1.14
+++ Evaluator/MultiArgEvaluator.h	15 Mar 2004 10:24:14 -0000
@@ -64,6 +64,8 @@
 //-----------------------------------------------------------------------------

 #include "Engine/Intersector.h"
+#include "Evaluator/EvaluatorTags.h"
+#include "Evaluator/RequestLocks.h"
 #include "Evaluator/MultiArgKernel.h"
 #include "Evaluator/SimpleIntersector.h"
 #include "Evaluator/ScalarCodeInfo.h"
Index: Evaluator/MultiArgKernel.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Evaluator/MultiArgKernel.h,v
retrieving revision 1.3
diff -u -u -r1.3 MultiArgKernel.h
--- Evaluator/MultiArgKernel.h	22 Oct 2003 20:43:26 -0000	1.3
+++ Evaluator/MultiArgKernel.h	15 Mar 2004 10:24:14 -0000
@@ -61,8 +61,10 @@
 //-----------------------------------------------------------------------------

 #include "Engine/EngineFunctor.h"
+#include "Evaluator/RequestLocks.h"
 #include "Evaluator/LoopApply.h"
 #include "Functions/MultiArg.h"
+#include <vector>

 //-----------------------------------------------------------------------------
 // Forward Declarations:
Index: Evaluator/SimpleIntersector.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Evaluator/SimpleIntersector.h,v
retrieving revision 1.6
diff -u -u -r1.6 SimpleIntersector.h
--- Evaluator/SimpleIntersector.h	22 Oct 2003 20:43:26 -0000	1.6
+++ Evaluator/SimpleIntersector.h	15 Mar 2004 10:24:15 -0000
@@ -55,10 +55,16 @@
 //-----------------------------------------------------------------------------

 #include "Engine/EngineFunctor.h"
+#include "Layout/INode.h"
+#include "Utilities/RefCounted.h"
+#include "Utilities/RefCountedPtr.h"

 //-----------------------------------------------------------------------------
 // Forward Declarations:
 //-----------------------------------------------------------------------------
+
+template <class LayoutTag, class PatchTag, int Dim2>
+class MultiPatchView;

 //-----------------------------------------------------------------------------
 //
Index: Functions/MultiArg.h
===================================================================
RCS file: /home/pooma/Repository/r2/src/Functions/MultiArg.h,v
retrieving revision 1.9
diff -u -u -r1.9 MultiArg.h
--- Functions/MultiArg.h	25 Oct 2003 12:06:55 -0000	1.9
+++ Functions/MultiArg.h	15 Mar 2004 10:24:16 -0000
@@ -70,6 +70,7 @@
 //-----------------------------------------------------------------------------

 #include "Pooma/View.h"
+#include <vector>

 //-----------------------------------------------------------------------------
 // Forward Declarations:


From jcrotinger at proximation.com  Mon Mar 15 13:52:45 2004
From: jcrotinger at proximation.com (James Crotinger)
Date: Mon, 15 Mar 2004 06:52:45 -0700
Subject: [pooma-dev] [PATCH] Add missing #includes
Message-ID: <F871BB04B0EA224A821A5274C31DF315150A3C@proxim-sf001.santafe.proximation.com>

Hi Richard,

If you add <iostream> you should remove <iosfwd>, though it is generally
better to use the latter in a header if it only needs references (on some
platforms, unnecessary includes of iostream have made significant
differences in compile speed, and at one point, including <iostream> was
verboten in public header files, though I think this decision was ultimately
abandoned).

	Jim

------------------------------------------------------------------------
James A. Crotinger                           email:     jimc at numerix.com
NumeriX, LLC                                 phone:  (505) 424-4477 x104
2960 Rodeo Park Dr. W.
Santa Fe, NM 87505
 

> -----Original Message-----
> From: Richard Guenther [mailto:rguenth at tat.physik.uni-tuebingen.de]
> Sent: Monday, March 15, 2004 3:28 AM
> To: pooma-dev at pooma.codesourcery.com
> Cc: Jeffrey D. Oldham
> Subject: [pooma-dev] [PATCH] Add missing #includes
> 
> Hi!
> 
> A first step cleaning up #includes.  Makes more headers pass generation of
> a precompiled header.  Next step is to remove unnecessary #includes.
> 
> Ok?
> 
> Richard.
> 
> 
> 2004Mar15  Richard Guenther <richard.guenther at uni-tuebingen.de>
> 
> 	* src/Domain/DomainMap.h: add missing #include.
> 	src/Domain/NewDomain.h: likewise.
> 	src/Evaluator/MultiArgEvaluator.h: likewise.
> 	src/Evaluator/MultiArgKernel.h: likewise.
> 	src/Evaluator/SimpleIntersector.h: likewise.
> 	src/Functions/MultiArg.h: likewise.
> 
> Index: Domain/DomainMap.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Domain/DomainMap.h,v
> retrieving revision 1.20
> diff -u -u -r1.20 DomainMap.h
> --- Domain/DomainMap.h	10 Oct 2003 19:26:43 -0000	1.20
> +++ Domain/DomainMap.h	15 Mar 2004 10:24:10 -0000
> @@ -58,6 +58,7 @@
>  #include <utility>
>  #include <list>
>  #include <iosfwd>
> +#include <iostream>
> 
> 
> 
> //////////////////////////////////////////////////////////////////////////
> /////
> Index: Domain/NewDomain.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Domain/NewDomain.h,v
> retrieving revision 1.34
> diff -u -u -r1.34 NewDomain.h
> --- Domain/NewDomain.h	12 Oct 2003 11:14:38 -0000	1.34
> +++ Domain/NewDomain.h	15 Mar 2004 10:24:12 -0000
> @@ -65,6 +65,7 @@
> 
>  #include "Domain/DomainTraits.h"
>  #include "Utilities/PAssert.h"
> +#include "Utilities/NoInit.h"
> 
>  //-----------------------------------------------------------------------
> ------
>  // Forward Declarations:
> Index: Evaluator/MultiArgEvaluator.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Evaluator/MultiArgEvaluator.h,v
> retrieving revision 1.14
> diff -u -u -r1.14 MultiArgEvaluator.h
> --- Evaluator/MultiArgEvaluator.h	21 Nov 2003 17:36:10 -0000	1.14
> +++ Evaluator/MultiArgEvaluator.h	15 Mar 2004 10:24:14 -0000
> @@ -64,6 +64,8 @@
>  //-----------------------------------------------------------------------
> ------
> 
>  #include "Engine/Intersector.h"
> +#include "Evaluator/EvaluatorTags.h"
> +#include "Evaluator/RequestLocks.h"
>  #include "Evaluator/MultiArgKernel.h"
>  #include "Evaluator/SimpleIntersector.h"
>  #include "Evaluator/ScalarCodeInfo.h"
> Index: Evaluator/MultiArgKernel.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Evaluator/MultiArgKernel.h,v
> retrieving revision 1.3
> diff -u -u -r1.3 MultiArgKernel.h
> --- Evaluator/MultiArgKernel.h	22 Oct 2003 20:43:26 -0000	1.3
> +++ Evaluator/MultiArgKernel.h	15 Mar 2004 10:24:14 -0000
> @@ -61,8 +61,10 @@
>  //-----------------------------------------------------------------------
> ------
> 
>  #include "Engine/EngineFunctor.h"
> +#include "Evaluator/RequestLocks.h"
>  #include "Evaluator/LoopApply.h"
>  #include "Functions/MultiArg.h"
> +#include <vector>
> 
>  //-----------------------------------------------------------------------
> ------
>  // Forward Declarations:
> Index: Evaluator/SimpleIntersector.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Evaluator/SimpleIntersector.h,v
> retrieving revision 1.6
> diff -u -u -r1.6 SimpleIntersector.h
> --- Evaluator/SimpleIntersector.h	22 Oct 2003 20:43:26 -0000	1.6
> +++ Evaluator/SimpleIntersector.h	15 Mar 2004 10:24:15 -0000
> @@ -55,10 +55,16 @@
>  //-----------------------------------------------------------------------
> ------
> 
>  #include "Engine/EngineFunctor.h"
> +#include "Layout/INode.h"
> +#include "Utilities/RefCounted.h"
> +#include "Utilities/RefCountedPtr.h"
> 
>  //-----------------------------------------------------------------------
> ------
>  // Forward Declarations:
>  //-----------------------------------------------------------------------
> ------
> +
> +template <class LayoutTag, class PatchTag, int Dim2>
> +class MultiPatchView;
> 
>  //-----------------------------------------------------------------------
> ------
>  //
> Index: Functions/MultiArg.h
> ===================================================================
> RCS file: /home/pooma/Repository/r2/src/Functions/MultiArg.h,v
> retrieving revision 1.9
> diff -u -u -r1.9 MultiArg.h
> --- Functions/MultiArg.h	25 Oct 2003 12:06:55 -0000	1.9
> +++ Functions/MultiArg.h	15 Mar 2004 10:24:16 -0000
> @@ -70,6 +70,7 @@
>  //-----------------------------------------------------------------------
> ------
> 
>  #include "Pooma/View.h"
> +#include <vector>
> 
>  //-----------------------------------------------------------------------
> ------
>  // Forward Declarations:
-------------- next part --------------
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From rguenth at tat.physik.uni-tuebingen.de  Tue Mar 23 09:07:18 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 23 Mar 2004 10:07:18 +0100 (CET)
Subject: [PATCH] Another PrintField tweak
Message-ID: <Pine.LNX.4.53.0403230958150.2417@bellatrix.tat.physik.uni-tuebingen.de>

Hi!

This allows more cases of expression printing, like

pinfo << 2.0*a;

or more complex expressions.

The problem was the
PerformPrintField<S,A,A::dimensions>::print(*this, s, a.subField(m, c));
call in the PrintField::print() method and the prototype for the
PerformPrinfField::print method without a suitable auto-conversion from
the result type of a.subField(m, c) back to A.

Fixed by effectively removing the Metrowerks workaround and templating
the member of PerformPrintField on A, S, rather than PerformPrintField
itself.  The workaround is from 12-Aug-99, so the compiler had rather been
fixed until now.

The PrintArray counterpart works (including the same workaround), because
we don't take subfield-views here and the types can match exactly.

Ok?

Richard.


2004Mar23  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Field/PrintField.h: template PerformPrintField on Dim
	only, template member on stream and field instead.

===== PrintField.h 1.4 vs edited =====
--- 1.4/r2/src/Field/PrintField.h	Thu Jan 29 12:01:39 2004
+++ edited/PrintField.h	Tue Mar 23 09:58:02 2004
@@ -71,23 +71,24 @@

 /**
  * PerformPrintField struct: a simple wrapper around the templated 'print'
- * method of PrintField.  This is here as a workaround to a Metrowerks
- * problem that prevents having templated member functions defined as
- * out-of-line.  This struct defines one static method 'print', which
+ * method of PrintField.
+ * This struct defines one static method 'print', which
  * prints an field to a stream (the two template parameters).  The Dim
  * parameter is used to specialize this to the case of a 1D domain.  This is
  * called by the 'print' templated member function of PrintField.
  */

-template<class S, class A, int Dim>
+template<int Dim>
 struct PerformPrintField
 {
+  template <class S, class A>
   static void print(const PrintField &, S &, const A &);
 };

-template<class S, class A>
-struct PerformPrintField<S, A, 1>
+template<>
+struct PerformPrintField<1>
 {
+  template<class S, class A>
   static void print(const PrintField &, S &, const A &);
 };

@@ -239,7 +240,7 @@
           {
             s << "Material #" << m << ", Centering #" << c << " " << a.centering(c)
               << "\n"<< "-------------\n";
-            PerformPrintField<S,A,A::dimensions>::print(*this, s, a.subField(m, c));
+            PerformPrintField<A::dimensions>::print(*this, s, a.subField(m, c));
           }
     }

@@ -375,7 +376,7 @@

 template<class S, class A>
 void
-PerformPrintField<S,A,1>::print(const PrintField &p, S &s, const A &a)
+PerformPrintField<1>::print(const PrintField &p, S &s, const A &a)
 {
   // make sure this is the right function

@@ -459,9 +460,10 @@
 */
 //-----------------------------------------------------------------------------

-template<class S, class A, int Dim>
+template<int Dim>
+template<class S, class A>
 void
-PerformPrintField<S,A,Dim>::print(const PrintField &p, S &s, const A &a)
+PerformPrintField<Dim>::print(const PrintField &p, S &s, const A &a)
 {
   int i, j, k;



From rguenth at tat.physik.uni-tuebingen.de  Tue Mar 23 09:10:57 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 23 Mar 2004 10:10:57 +0100 (CET)
Subject: [PATCH] AltComponentView
Message-ID: <Pine.LNX.4.53.0403231009340.2417@bellatrix.tat.physik.uni-tuebingen.de>

Hi!

Forgot that last time.

Ok?

Richard.


2004Mar23  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Array/Array.h: remove AltComponentView.

===== Array/Array.h 1.6 vs edited =====
--- 1.6/r2/src/Array/Array.h	Tue Nov 25 16:39:01 2003
+++ edited/Array/Array.h	Tue Mar 23 10:09:11 2004
@@ -649,8 +649,6 @@
 // an existing engine cannot be any kind of slice domain.
 // Also, bounds checking would make no sense because it would
 // reduce to contains(a.domain(), a.domain());
-//
-// Any changes to this class should also be made to AltView0.

 template<int Dim, class T, class EngineTag>
 struct View0<Array<Dim, T, EngineTag> >
@@ -695,41 +693,6 @@
     }
 };

-// AltView0 avoids an instantiation problem that arises when two
-// classes use each other.  This class's definition should be exactly
-// the same as View0 except omitting member functions.
-//
-// Do NOT explicitly instantiate this class.
-
-template<class ArrayTag>
-struct AltView0;
-
-template<int Dim, class T, class EngineTag>
-struct AltView0<Array<Dim, T, EngineTag> >
-{
-  // Convenience typedef for the thing we're taking a view of.
-
-  typedef Array<Dim, T, EngineTag> Subject_t;
-
-  // Deduce domains for the output type.
-  // At some point, we need to fix NewDomain1; until then, use
-  // the temporary version from Array.h.
-
-  typedef typename Subject_t::Engine_t Engine_t;
-  typedef typename Subject_t::Domain_t Domain_t;
-
-  // Deduce the template parameters for the output type.
-
-  typedef typename NewEngine<Engine_t, Domain_t>::Type_t NewEngine_t;
-  enum { newDim = NewEngine_t::dimensions };
-  typedef typename NewEngine_t::Tag_t NewEngineTag_t;
-
-  // The output types.
-
-  typedef Array<newDim, T, NewEngineTag_t> Type_t;
-  typedef Type_t ReadType_t;
-};
-
 template<int Dim, class T, class EngineTag>
 struct View1<Array<Dim, T, EngineTag>, int>
 {
@@ -1322,7 +1285,6 @@

 /**
  * ComponentView specialization for Array.
- * Changes to ComponentView should also be made to AltComponentView.
  */

 template<int Dim, class T, class EngineTag>
@@ -1358,36 +1320,6 @@
     }
 };

-/**
- * AltComponentView avoids an instantiation problem that arises when
- * two classes use each other.  These classes' definitions should be
- * exactly the same as ComponentView except omitting member functions.
- *
- * Do NOT explicitly instantiate these alternative classes.
- */
-
-template<class Components, class Arr>
-struct AltComponentView;
-
-template<class Components, int Dim, class T, class EngineTag>
-struct AltComponentView<Components, Array<Dim, T, EngineTag> >
-{
-  // Convenience typedef for the thing we're taking a component view of.
-
-  typedef Array<Dim, T, EngineTag> Subject_t;
-
-  // Deduce the template parameters for the output type.
-
-  typedef typename Subject_t::Element_t Element_t;
-  typedef typename Subject_t::Engine_t Engine_t;
-  typedef typename ComponentAccess<Element_t, Components>::Element_t NewT_t;
-  typedef CompFwd<Engine_t, Components> NewEngineTag_t;
-
-  // The output type.
-
-  typedef Array<Dim, NewT_t, NewEngineTag_t> Type_t;
-};
-
 //-----------------------------------------------------------------------------
 // Array
 //-----------------------------------------------------------------------------
@@ -1863,7 +1795,7 @@
   /// A zero-argument version of operator(), which takes a view of
   /// array's domain, is also supplied.
   //@{
-  typename AltView0<This_t>::ReadType_t
+  typename View0<This_t>::ReadType_t
   read() const
     {
       typedef View0<This_t> Ret_t;
@@ -1933,7 +1865,7 @@
       return Ret_t::makeRead(*this, s1, s2, s3, s4, s5, s6, s7);
     }

-  typename AltView0<This_t>::Type_t
+  typename View0<This_t>::Type_t
   operator()() const
     {
       typedef View0<This_t> Ret_t;
@@ -2014,46 +1946,46 @@
   /// ultimately work, Element_t must have a working const operator()(Loc<M>)
   /// that returns a reference or proxy to the component.
   //@{
-  inline typename AltComponentView<Loc<1>, This_t>::Type_t
+  inline typename ComponentView<Loc<1>, This_t>::Type_t
   comp(const int &i1) const
     {
       return ComponentView<Loc<1>, This_t>::make(*this, Loc<1>(i1));
     }

-  inline typename AltComponentView<Loc<2>, This_t>::Type_t
+  inline typename ComponentView<Loc<2>, This_t>::Type_t
   comp(int i1, int i2) const
     {
       return ComponentView<Loc<2>, This_t>::make(*this, Loc<2>(i1, i2));
     }

-  inline typename AltComponentView<Loc<3>, This_t>::Type_t
+  inline typename ComponentView<Loc<3>, This_t>::Type_t
   comp(int i1, int i2, int i3) const
     {
       return ComponentView<Loc<3>, This_t>::make(*this, Loc<3>(i1, i2, i3));
     }

-  inline typename AltComponentView<Loc<4>, This_t>::Type_t
+  inline typename ComponentView<Loc<4>, This_t>::Type_t
   comp(int i1, int i2, int i3, int i4) const
     {
       return ComponentView<Loc<4>, This_t>::make(*this,
         Loc<4>(i1, i2, i3, i4));
     }

-  inline typename AltComponentView<Loc<5>, This_t>::Type_t
+  inline typename ComponentView<Loc<5>, This_t>::Type_t
   comp(int i1, int i2, int i3, int i4, int i5) const
     {
       return ComponentView<Loc<5>, This_t>::make(*this,
         Loc<5>(i1, i2, i3, i4, i5));
     }

-  inline typename AltComponentView<Loc<6>, This_t>::Type_t
+  inline typename ComponentView<Loc<6>, This_t>::Type_t
   comp(int i1, int i2, int i3, int i4, int i5, int i6) const
     {
       return ComponentView<Loc<6>, This_t>::make(*this,
         Loc<6>(i1, i2, i3, i4, i5, i6));
     }

-  inline typename AltComponentView<Loc<7>, This_t>::Type_t
+  inline typename ComponentView<Loc<7>, This_t>::Type_t
   comp(int i1, int i2, int i3, int i4, int i5, int i6, int i7) const
     {
       return ComponentView<Loc<7>, This_t>::make(*this,
@@ -2611,6 +2543,6 @@
 // ACL:rcsinfo
 // ----------------------------------------------------------------------
 // $RCSfile: Array.h,v $   $Author: pooma $
-// $Revision: 1.149 $   $Date: 2003/11/21 17:35:16 $
+// $Revision: 1.150 $   $Date: 2004/03/02 18:18:45 $
 // ----------------------------------------------------------------------
 // ACL:rcsinfo


From rguenth at tat.physik.uni-tuebingen.de  Tue Mar 23 09:30:20 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 23 Mar 2004 10:30:20 +0100 (CET)
Subject: [PATCH] Add PETSc wrapper.
Message-ID: <Pine.LNX.4.53.0403231025360.2417@bellatrix.tat.physik.uni-tuebingen.de>

Hi!

This adds support for using the PETSc library of sparse (non-)linear
(MPI-)parallel solvers with POOMA.  It does so by excercising the PETSc
distributed array (DA) API for interfacing with POOMA engines.

Accompanied with an example in Solvers/PETSc.  Tested with serial
PETSc/POOMA and MPI PETSc/POOMA.

Ok?

Richard.


2004Mar23  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Transform/PETSc.h: new.
	examples/Solvers/PETSc/PETSc.cpp: new.
	examples/Solvers/PETSc/include.mk: new.
	examples/Solvers/PETSc/makefile: new.

diff -Nru a/r2/examples/Solvers/PETSc/PETSc.cpp b/r2/examples/Solvers/PETSc/PETSc.cpp
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/r2/examples/Solvers/PETSc/PETSc.cpp	Tue Mar 23 10:25:34 2004
@@ -0,0 +1,100 @@
+// Example on how to use PETSc linear solvers from inside a Pooma program.
+// This solves the Poisson equation for a density distribution in a 3D
+// Array to create the corresponding gravitational potential.
+
+#include <iostream>
+#include "Transform/PETSc.h"
+
+#include "petscda.h"
+#include "petscksp.h"
+
+void doit()
+{
+  typedef Array<2, double, MultiPatch<GridTag, Remote<Brick> > > Array_t;
+  typedef Array_t::Layout_t::const_iterator layout_iter;
+
+  Interval<2> domain(8, 8);
+  Loc<2> blocks = makeRBlocks(domain, Pooma::contexts());
+  GridLayout<2> layout(domain, blocks, GuardLayers<2>(1), DistributedTag());
+
+  // Create DA
+  Pooma::PoomaDA da(layout, DA_NONPERIODIC, DA_STENCIL_STAR, 1);
+
+  // Assemble matrix
+  Mat jac;
+  DAGetMatrix(da, MATMPIAIJ, &jac);
+  {
+    int mx, my;
+    PetscScalar Hx, Hy, HxdHy, HydHx;
+    DAGetInfo(da,0,&mx,&my,PETSC_NULL,0,0,0,0,0,0,0);
+    Hx = 1.0 / (PetscReal)(mx-1); Hy = 1.0 / (PetscReal)(my-1);
+    HxdHy = Hx/Hy; HydHx = Hy/Hx;
+    int xs, ys, xm, ym;
+    MatStencil row,col[5];
+    DAGetCorners(da,&xs,&ys,PETSC_NULL,&xm,&ym,PETSC_NULL);
+    PetscScalar v[5];
+    for (int j=ys; j<ys+ym; j++){
+      for(int i=xs; i<xs+xm; i++){
+	row.i = i; row.j = j;
+	if (i==0 || j==0 || i==mx-1 || j==my-1) {
+	  v[0] = 2.0*(HxdHy + HydHx);
+	  MatSetValuesStencil(jac,1,&row,1,&row,v,INSERT_VALUES);
+	} else {
+	  v[0] = -HxdHy;              col[0].i = i;   col[0].j = j-1;
+	  v[1] = -HydHx;              col[1].i = i-1; col[1].j = j;
+	  v[2] = 2.0*(HxdHy + HydHx); col[2].i = i;   col[2].j = j;
+	  v[3] = -HydHx;              col[3].i = i+1; col[3].j = j;
+	  v[4] = -HxdHy;              col[4].i = i;   col[4].j = j+1;
+	  MatSetValuesStencil(jac,1,&row,5,col,v,INSERT_VALUES);
+	}
+      }
+    }
+  }
+  MatAssemblyBegin(jac,MAT_FINAL_ASSEMBLY);
+  MatAssemblyEnd(jac,MAT_FINAL_ASSEMBLY);
+
+  // problem
+  Array_t rh(layout), ph(layout);
+  rh(rh.totalDomain()) = 1.0;
+  ph(ph.totalDomain()) = 0.0;
+  Pooma::pinfo << "Density distribution:\n" << rh << std::endl;
+
+  // assemble rhs and solution
+  Vec pph, prh;
+  DACreateGlobalVector(da, &prh);
+  VecDuplicate(prh, &pph);
+
+  da.assign(prh, rh);
+
+  // create solver
+  KSP ksp;
+  KSPCreate(PETSC_COMM_WORLD, &ksp);
+  KSPSetTolerances(ksp, 1e-10, 1e-5, 1e5, 10);
+  KSPSetOperators(ksp, jac, jac, DIFFERENT_NONZERO_PATTERN);
+  KSPSetFromOptions(ksp);
+
+  // solve and copy solution
+  KSPSetRhs(ksp, prh);
+  KSPSetSolution(ksp, pph);
+  KSPSolve(ksp);
+  da.assign(ph, pph);
+
+  // show soultion
+  Pooma::pinfo << "Solution:\n" << ph << std::endl;
+}
+
+int main(int argc, char **argv)
+{
+  Pooma::initialize(argc, argv);
+
+  PetscSetCommWorld(MPI_COMM_WORLD);
+  PetscInitialize(&argc, &argv, NULL, NULL);
+
+  doit();
+
+  // cleanup
+  PetscFinalize();
+  Pooma::finalize();
+  return 0;
+}
+
diff -Nru a/r2/examples/Solvers/PETSc/include.mk b/r2/examples/Solvers/PETSc/include.mk
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/r2/examples/Solvers/PETSc/include.mk	Tue Mar 23 10:25:34 2004
@@ -0,0 +1,59 @@
+# Generated by mm.pl: Mon Mar  9 13:58:39 MST 1998
+# ACL:license
+#  ----------------------------------------------------------------------
+#  This software and ancillary information (herein called "SOFTWARE")
+#  called POOMA (Parallel Object-Oriented Methods and Applications) is
+#  made available under the terms described here.  The SOFTWARE has been
+#  approved for release with associated LA-CC Number LA-CC-98-65.
+#
+#  Unless otherwise indicated, this SOFTWARE has been authored by an
+#  employee or employees of the University of California, operator of the
+#  Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with
+#  the U.S. Department of Energy.  The U.S. Government has rights to use,
+#  reproduce, and distribute this SOFTWARE. The public may copy, distribute,
+#  prepare derivative works and publicly display this SOFTWARE without
+#  charge, provided that this Notice and any statement of authorship are
+#  reproduced on all copies.  Neither the Government nor the University
+#  makes any warranty, express or implied, or assumes any liability or
+#  responsibility for the use of this SOFTWARE.
+#
+#  If SOFTWARE is modified to produce derivative works, such modified
+#  SOFTWARE should be clearly marked, so as not to confuse it with the
+#  version available from LANL.
+#
+#  For more information about POOMA, send e-mail to pooma at acl.lanl.gov,
+#  or visit the POOMA web page at http://www.acl.lanl.gov/pooma/.
+#  ----------------------------------------------------------------------
+# ACL:license
+
+
+# Wrap make components from SHARED_ROOT and the current directory in the
+# proper order so that variables like ODIR have the correct directory-specific
+# value at the right moment.  See the included files for details of what they
+# are doing. This file should NOT be manually edited.
+
+# Set NEXTDIR, THISDIR and DIR_LIST
+include $(SHARED_ROOT)/include1.mk
+
+# Include list of subdirectories to process
+-include $(THISDIR)/subdir.mk
+
+# Set ODIR, PROJECT_INCLUDES, UNIQUE
+include $(SHARED_ROOT)/include2.mk
+
+# Set list of object files, relative to ODIR
+-include $(THISDIR)/objfile.mk
+
+# Set rules for the ODIR directory
+include $(SHARED_ROOT)/compilerules.mk
+
+# Remove current dir from DIR_LIST
+DIR_LIST :=$(filter-out $(firstword $(DIR_LIST)), $(DIR_LIST))
+
+
+# ACL:rcsinfo
+#  ----------------------------------------------------------------------
+#  $RCSfile: include.mk,v $   $Author: swhaney $
+#  $Revision: 1.3 $   $Date: 2000/03/07 13:15:37 $
+#  ----------------------------------------------------------------------
+# ACL:rcsinfo
diff -Nru a/r2/examples/Solvers/PETSc/makefile b/r2/examples/Solvers/PETSc/makefile
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/r2/examples/Solvers/PETSc/makefile	Tue Mar 23 10:25:34 2004
@@ -0,0 +1,65 @@
+# Generated by mm.pl: Mon Mar  9 13:58:39 MST 1998
+# ACL:license
+#  ----------------------------------------------------------------------
+#  This software and ancillary information (herein called "SOFTWARE")
+#  called POOMA (Parallel Object-Oriented Methods and Applications) is
+#  made available under the terms described here.  The SOFTWARE has been
+#  approved for release with associated LA-CC Number LA-CC-98-65.
+#
+#  Unless otherwise indicated, this SOFTWARE has been authored by an
+#  employee or employees of the University of California, operator of the
+#  Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with
+#  the U.S. Department of Energy.  The U.S. Government has rights to use,
+#  reproduce, and distribute this SOFTWARE. The public may copy, distribute,
+#  prepare derivative works and publicly display this SOFTWARE without
+#  charge, provided that this Notice and any statement of authorship are
+#  reproduced on all copies.  Neither the Government nor the University
+#  makes any warranty, express or implied, or assumes any liability or
+#  responsibility for the use of this SOFTWARE.
+#
+#  If SOFTWARE is modified to produce derivative works, such modified
+#  SOFTWARE should be clearly marked, so as not to confuse it with the
+#  version available from LANL.
+#
+#  For more information about POOMA, send e-mail to pooma at acl.lanl.gov,
+#  or visit the POOMA web page at http://www.acl.lanl.gov/pooma/.
+#  ----------------------------------------------------------------------
+# ACL:license
+
+# This file is user-editable
+
+PROJECT_ROOT = $(shell cd ../../..; pwd)
+include $(PROJECT_ROOT)/config/head.mk
+
+PASS=APP
+
+default:: PETSc
+
+.PHONY: PETSc
+
+PETSc:: $(ODIR)/PETSc
+
+include $(SHARED_ROOT)/tail.mk
+
+$(ODIR)/PETSc.o: PETSc.cpp
+	$(CXX) -o $@ -c $< $(RULE_CXXOPTS) $(RULE_INCLUDES) $(SUITE_DEFINES) \
+		-DPETSC_USE_EXTERN_CXX \
+		-I$(PETSC_DIR)/bmake/linux-gnu \
+		-I$(PETSC_DIR)/include
+
+$(ODIR)/PETSc: $(ODIR)/PETSc.o
+	$(CXX) -o $@ $^ $(RULE_LD_OPTS) \
+		-L$(PETSC_DIR)/lib/libg/linux-gnu \
+		-lpetscmat -lpetscksp -lpetscdm -lpetscvec -lpetscmat -lpetscdm -lpetsc -lpetscts -lpetscvec -lpetscsnes -lblas -llapack -lblas -lg2c -ldl -static
+
+# ACL:rcsinfo
+#  ----------------------------------------------------------------------
+#  $RCSfile: makefile,v $   $Author: julianc $
+#  $Revision: 1.6 $   $Date: 2000/07/21 20:43:14 $
+#  ----------------------------------------------------------------------
+# ACL:rcsinfo
diff -Nru a/r2/src/Transform/PETSc.h b/r2/src/Transform/PETSc.h
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/r2/src/Transform/PETSc.h	Tue Mar 23 10:25:34 2004
@@ -0,0 +1,396 @@
+#ifndef POOMA_TRANSFORM_PETSC_H
+#define POOMA_TRANSFORM_PETSC_H
+
+// PETSc interfacing with POOMA using the PETSc DA interface.
+//
+// Copyright (c) 2004 by Richard Guenther <richard.guenther at uni-tuebingen.de>
+//
+// This file is in the public domain.
+
+/** @file
+ * @ingroup Utilities
+ * @brief
+ * Interfacing with the PETSc library of (non-)linear solvers.
+ *
+ * Interfacing supports the PETSc DA (distributed arrays) notion
+ * for creating (non-)linear solvers for implicit finite difference
+ * methods.  Using this wrappers you can fill your right-hand-side
+ * vector from a POOMA engine and transfer the result-vector to
+ * a POOMA engine.
+ *
+ * You are going to use the PetscDA class and its methods.
+ * See examples/Solver/PETSc for how to use this.
+ */
+
+#include "Pooma/Arrays.h"
+#include "petscda.h"
+
+
+template <class MeshTag, class T, class EngineTag>
+class Field;
+
+
+namespace Pooma {
+
+
+/**
+ * Helper to convert DALocalInfo domain info to appropriate
+ * Pooma Interval
+ */
+
+template <int Dim>
+struct PoomaDAGetDomain;
+
+template <>
+struct PoomaDAGetDomain<1> {
+  static inline
+  Interval<1> innerDomain(DALocalInfo& i)
+  {
+    return Interval<1>(i.xs, i.xs+i.xm-1);
+  }
+  static inline
+  Interval<1> totalDomain(DALocalInfo& i)
+  {
+    return Interval<1>(i.gxs, i.gxs+i.gxm-1);
+  }
+};
+
+template <>
+struct PoomaDAGetDomain<2> {
+  static inline
+  Interval<2> innerDomain(DALocalInfo& i)
+  {
+    return Interval<2>(Interval<1>(i.xs, i.xs+i.xm-1),
+		       Interval<1>(i.ys, i.ys+i.ym-1));
+  }
+  static inline
+  Interval<2> totalDomain(DALocalInfo& i)
+  {
+    return Interval<2>(Interval<1>(i.gxs, i.gxs+i.gxm-1),
+		       Interval<1>(i.gys, i.gys+i.gym-1));
+  }
+};
+
+template <>
+struct PoomaDAGetDomain<3> {
+  static inline
+  Interval<3> innerDomain(DALocalInfo& i)
+  {
+    return Interval<3>(Interval<1>(i.xs, i.xs+i.xm-1),
+		       Interval<1>(i.ys, i.ys+i.ym-1),
+		       Interval<1>(i.zs, i.zs+i.zm-1));
+  }
+  static inline
+  Interval<3> totalDomain(DALocalInfo& i)
+  {
+    return Interval<3>(Interval<1>(i.gxs, i.gxs+i.gxm-1),
+		       Interval<1>(i.gys, i.gys+i.gym-1),
+		       Interval<1>(i.gzs, i.gzs+i.gzm-1));
+  }
+};
+
+
+
+/**
+ * Helper to ease brick-engine -> vector copy
+ */
+
+template <int Dim>
+struct PoomaDACopy;
+
+template <>
+struct PoomaDACopy<1> {
+  template <class T>
+  static
+  void copy(Vec v, const Engine<1, T, Brick>& e)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<1> d(e.domain());
+    for (int I=d.first(); I<=d.last(); ++I)
+      pa[idx++] = e(I);
+    VecRestoreArray(v, &pa);
+  }
+  template <class T>
+  static
+  void copy(const Engine<1, T, Brick>& e, Vec v)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<1> d(e.domain());
+    for (int I=d.first(); I<=d.last(); ++I)
+      e(I) = pa[idx++];
+    VecRestoreArray(v, &pa);
+  }
+};
+
+template <>
+struct PoomaDACopy<2> {
+  template <class T>
+  static
+  void copy(Vec v, const Engine<2, T, Brick>& e)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<2> d(e.domain());
+    for (int J=d[1].first(); J<=d[1].last(); ++J)
+      for (int I=d[0].first(); I<=d[0].last(); ++I)
+	pa[idx++] = e(I, J);
+    VecRestoreArray(v, &pa);
+  }
+  template <class T>
+  static
+  void copy(const Engine<2, T, Brick>& e, Vec v)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<2> d(e.domain());
+    for (int J=d[1].first(); J<=d[1].last(); ++J)
+      for (int I=d[0].first(); I<=d[0].last(); ++I)
+	e(I, J) = pa[idx++];
+    VecRestoreArray(v, &pa);
+  }
+};
+
+template <>
+struct PoomaDACopy<3> {
+  template <class T>
+  static
+  void copy(Vec v, const Engine<3, T, Brick>& e)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<3> d(e.domain());
+    for (int K=d[2].first(); K<=d[2].last(); ++K)
+      for (int J=d[1].first(); J<=d[1].last(); ++J)
+	for (int I=d[0].first(); I<=d[0].last(); ++I)
+	  pa[idx++] = e(I, J, K);
+    VecRestoreArray(v, &pa);
+  }
+  template <class T>
+  static
+  void copy(const Engine<3, T, Brick>& e, Vec v)
+  {
+    PetscScalar *pa;
+    VecGetArray(v, &pa);
+    int idx=0;
+    Interval<3> d(e.domain());
+    for (int K=d[2].first(); K<=d[2].last(); ++K)
+      for (int J=d[1].first(); J<=d[1].last(); ++J)
+	for (int I=d[0].first(); I<=d[0].last(); ++I)
+	  e(I, J, K) = pa[idx++];
+    VecRestoreArray(v, &pa);
+  }
+};
+
+
+
+/**
+ * Struct to wrap extra global information about a DA.
+ */
+
+struct PoomaDA {
+
+  /// Creates a PETSc DA from the specified layout.
+  /// Extra arguments are like DACreateNd, namely the periodicity
+  /// and stencil type and the stencil width.
+
+  template <class Layout>
+  PoomaDA(const Layout &l, DAPeriodicType pt, DAStencilType st, int sw);
+
+  ~PoomaDA()
+  {
+    delete[] info;
+    DADestroy(da);
+  }
+
+
+  /// Can use this as PETSc DA type.
+
+  operator DA() const { return da; }
+
+
+  /// Assign from POOMA engine to PETSc vector.
+
+  template <int Dim, class T, class EngineTag>
+  void assign(Vec v, const Engine<Dim, T, EngineTag> &e);
+
+  /// Assign from POOMA array to PETSc vector.
+
+  template <int Dim, class T, class EngineTag>
+  void assign(Vec v, const Array<Dim, T, EngineTag> &a)
+  {
+    this->assign(v, a.engine());
+  }
+
+  /// Assign from POOMA field to PETSc vector.
+
+  template <class MeshTag, class T, class EngineTag>
+  void assign(Vec v, const Field<MeshTag, T, EngineTag> &f)
+  {
+    this->assign(v, f.fieldEngine().engine());
+  }
+
+
+  /// Assign from PETSc vector to POOMA engine.
+
+  template <int Dim, class T, class EngineTag>
+  void assign(const Engine<Dim, T, EngineTag> &e, Vec v);
+
+  /// Assign from PETSc vector to POOMA array.
+
+  template <int Dim, class T, class EngineTag>
+  void assign(const Array<Dim, T, EngineTag> &a, Vec v)
+  {
+    this->assign(a.engine(), v);
+  }
+
+  /// Assign from PETSc vector to POOMA field.
+
+  template <class MeshTag, class T, class EngineTag>
+  void assign(const Field<MeshTag, T, EngineTag> &f, Vec v)
+  {
+    this->assign(f.fieldEngine().engine(), v);
+  }
+
+
+private:
+  DA da;
+  int n;
+  DALocalInfo *info;
+
+};
+
+
+template <class Layout>
+PoomaDA::PoomaDA(const Layout &l, DAPeriodicType pt, DAStencilType st, int sw)
+{
+  enum { Dim = Layout::dimensions };
+
+  // create DA
+  if (Dim == 1) {
+    DACreate1d(PETSC_COMM_WORLD,          /* MPI communicator */
+	       pt,                        /* grid periodicity */
+	       l.innerDomain()[0].size(), /* global domain size */
+	       1,                         /* degrees of freedom */
+	       sw,                        /* stencil width */
+	       PETSC_NULL,                /* local domain sizes per dimension */
+	       &this->da);
+  } else if (Dim == 2) {
+    DACreate2d(PETSC_COMM_WORLD,          /* MPI communicator */
+	       pt,                        /* grid periodicity */
+	       st,                        /* stencil type */
+	       l.innerDomain()[0].size(),
+	       l.innerDomain()[1].size(), /* global domain size */
+	       PETSC_DECIDE, PETSC_DECIDE,/* # processors */
+	       1,                         /* degrees of freedom */
+	       sw,                        /* stencil width */
+	       PETSC_NULL, PETSC_NULL,    /* local domain sizes per dimension */
+	       &this->da);
+  } else if (Dim == 3) {
+    DACreate3d(PETSC_COMM_WORLD,          /* MPI communicator */
+	       pt,                        /* grid periodicity */
+	       st,                        /* stencil type */
+	       l.innerDomain()[0].size(), l.innerDomain()[1].size(),
+	       l.innerDomain()[2].size(), /* global domain size */
+	       PETSC_DECIDE, PETSC_DECIDE,
+	       PETSC_DECIDE,              /* # processors */
+	       1,                         /* degrees of freedom */
+	       sw,                        /* stencil width */
+	       PETSC_NULL, PETSC_NULL,
+	       PETSC_NULL,                /* local domain sizes per dimension */
+	       &this->da);
+  }
+
+  // collect local information
+  int m, n, p;
+  DAGetInfo(this->da, PETSC_NULL, PETSC_NULL, PETSC_NULL, PETSC_NULL,
+            &m, &n, &p,
+            PETSC_NULL, PETSC_NULL, PETSC_NULL, PETSC_NULL);
+  this->n = m*n*p;
+  PInsist(Pooma::contexts() == this->n, "nr patches");
+  this->info = new DALocalInfo[this->n];
+  DAGetLocalInfo(this->da, &this->info[Pooma::context()]);
+
+  // distribute local information
+  // fixme - MPI_Allgather wrapper missing
+#if POOMA_MPI
+  MPI_Allgather(&this->info[Pooma::context()], sizeof(DALocalInfo), MPI_CHAR,
+		this->info, sizeof(DALocalInfo), MPI_CHAR,
+		MPI_COMM_WORLD);
+#endif
+}
+
+template <int Dim, class T, class EngineTag>
+void PoomaDA::assign(Vec v, const Engine<Dim, T, EngineTag> &e)
+{
+  typedef Engine<Dim, T, EngineTag> Engine_t;
+  typedef typename NewEngine<Engine_t, Interval<Dim> >::Type_t ViewEngine_t;
+
+  // our local brick engine
+  Engine<Dim, T, Brick> local_e;
+  Interval<Dim> local_I;
+
+  // loop over all DA patches
+  for (int i=0; i<this->n; ++i) {
+	// create DA patch context local pooma array
+        Interval<Dim> lPatch(PoomaDAGetDomain<Dim>::innerDomain(this->info[i]));
+	Array<Dim, T, Remote<Brick> > a;
+	a.engine() = Engine<Dim, T, Remote<Brick> >(i, lPatch);
+	Array<Dim, T, typename ViewEngine_t::Tag_t> e_array(ViewEngine_t(e, lPatch));
+	a = e_array;
+
+	// remember local engine
+	if (i == Pooma::context()) {
+	  local_e = a.engine().localEngine();
+	  local_I = lPatch;
+	}
+  }
+  Pooma::blockAndEvaluate();
+
+  // do the copy locally
+  PoomaDACopy<Dim>::copy(v, local_e);
+}
+
+template <int Dim, class T, class EngineTag>
+void PoomaDA::assign(const Engine<Dim, T, EngineTag> &e, Vec v)
+{
+  typedef Engine<Dim, T, EngineTag> Engine_t;
+  typedef typename NewEngine<Engine_t, Interval<Dim> >::Type_t ViewEngine_t;
+
+  // our local brick engine
+  Interval<Dim> local_I(PoomaDAGetDomain<Dim>::innerDomain(this->info[Pooma::context()]));
+  Engine<Dim, T, Brick> local_e(local_I);
+
+  // copy into the local brick
+  // if it were not the different array index ordering we could construct
+  // the brick engine with external data and avoid the double copying
+  PoomaDACopy<Dim>::copy(local_e, v);
+
+  // loop over all DA patches
+  for (int i=0; i<this->n; ++i) {
+	// create DA patch context local pooma array
+	Interval<Dim> lPatch(PoomaDAGetDomain<Dim>::innerDomain(this->info[i]));
+	Array<Dim, T, Remote<Brick> > a;
+	a.engine() = Engine<Dim, T, Remote<Brick> >(i, lPatch);
+
+	// override local engine with our one
+	if (Pooma::context() == i)
+	  a.engine().localEngine() = local_e;
+
+	// distribute the copy
+	Array<Dim, T, typename ViewEngine_t::Tag_t> e_array;
+	e_array.engine() = ViewEngine_t(e, lPatch);
+	e_array = a;
+  }
+}
+
+
+} // namespace Pooma
+
+#endif


From rguenth at tat.physik.uni-tuebingen.de  Tue Mar 23 11:11:35 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Tue, 23 Mar 2004 12:11:35 +0100 (CET)
Subject: [pooma-dev] [PATCH] AltComponentView
In-Reply-To: <Pine.LNX.4.53.0403231009340.2417@bellatrix.tat.physik.uni-tuebingen.de>
References: <Pine.LNX.4.53.0403231009340.2417@bellatrix.tat.physik.uni-tuebingen.de>
Message-ID: <Pine.LNX.4.53.0403231152560.16380@bellatrix.tat.physik.uni-tuebingen.de>

On Tue, 23 Mar 2004, Richard Guenther wrote:

> Hi!
>
> Forgot that last time.

> @@ -2014,46 +1946,46 @@
>    /// ultimately work, Element_t must have a working const operator()(Loc<M>)
>    /// that returns a reference or proxy to the component.
>    //@{
> -  inline typename AltComponentView<Loc<1>, This_t>::Type_t
> +  inline typename ComponentView<Loc<1>, This_t>::Type_t
>    comp(const int &i1) const
>      {
>        return ComponentView<Loc<1>, This_t>::make(*this, Loc<1>(i1));
>      }

I'll take that back - causes "interesting" failures of array_test22:

/home/rguenth/src/pooma-bk/r2/src/Array/Array.h(1951): error: class
"ComponentView<Loc<1>, Array<1, Vector<2, double, Full>, Brick>>" has no
member "Type_t"
    inline typename ComponentView<Loc<1>, This_t>::Type_t
                                                   ^
          detected during:
            instantiation of class "Array<Dim, T, EngineTag> [with Dim=1,
T=Vector<2, double, Full>, EngineTag=Brick]" at line 1307
            instantiation of class "ComponentView<Components, Array<D2,
T2, E2>> [with Components=Loc<1>, Dim=1, T=Vector<2, double, Full>,
EngineTag=Brick]" at line 54 of
"/net/bellatrix/home/rguenth/src/pooma-bk/r2/src/Array/tests/array_test22.cpp"

where array_test22 just does:

    typedef Array<1, Vector<2, double>, Brick> Array_t;
54  typedef ComponentView<Loc<1>, Array_t>::Type_t CView_t;
    Array_t b(dom);
    CView_t d(b.comp(1));

The intel compiler seems to rewrite the template names
(ComponentView<Components, Array<D2, T2, E2>>), but I'm curious
which ComponentView gets instantiated, as the overload in Array.h should
work.  gcc just says

/home/rguenth/src/pooma-bk/r2/src/Array/Array.h: In instantiation of
`Array<1, Vector<2, double, Full>, Brick>':
/home/rguenth/src/pooma-bk/r2/src/Array/Array.h:1307:   instantiated from
`ComponentView<Loc<1>, main(int, char**)::Array_t>'
/net/bellatrix/home/rguenth/src/pooma-bk/r2/src/Array/tests/array_test22.cpp:54:
instantiated from here
/home/rguenth/src/pooma-bk/r2/src/Array/Array.h:1953: error: no type named
`Type_t' in `struct ComponentView<Loc<1>, main(int, char**)::Array_t>'

which is equally un-helpful.

Also, in Array.h:1290, the integer overload of ComponentView seems to have
only potential negative effect, but disabling it doesn't fix the above
problem (nor does it introduce new problems).

Any suggestions?

Thanks,

Richard.

--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/


From oldham at codesourcery.com  Wed Mar 24 10:13:16 2004
From: oldham at codesourcery.com (Jeffrey D. Oldham)
Date: Wed, 24 Mar 2004 02:13:16 -0800
Subject: [pooma-dev] [PATCH] Another PrintField tweak
In-Reply-To: <Pine.LNX.4.53.0403230958150.2417@bellatrix.tat.physik.uni-tuebingen.de>
References: <Pine.LNX.4.53.0403230958150.2417@bellatrix.tat.physik.uni-tuebingen.de>
Message-ID: <40615F3C.6070603@codesourcery.com>

Richard Guenther wrote:

>Hi!
>
>This allows more cases of expression printing, like
>
>pinfo << 2.0*a;
>
>or more complex expressions.
>
>The problem was the
>PerformPrintField<S,A,A::dimensions>::print(*this, s, a.subField(m, c));
>call in the PrintField::print() method and the prototype for the
>PerformPrinfField::print method without a suitable auto-conversion from
>the result type of a.subField(m, c) back to A.
>
>Fixed by effectively removing the Metrowerks workaround and templating
>the member of PerformPrintField on A, S, rather than PerformPrintField
>itself.  The workaround is from 12-Aug-99, so the compiler had rather been
>fixed until now.
>
>The PrintArray counterpart works (including the same workaround), because
>we don't take subfield-views here and the types can match exactly.
>
>  
>

Yes, thanks for improving printing.

>2004Mar23  Richard Guenther <richard.guenther at uni-tuebingen.de>
>
>	* src/Field/PrintField.h: template PerformPrintField on Dim
>	only, template member on stream and field instead.
>
>===== PrintField.h 1.4 vs edited =====
>--- 1.4/r2/src/Field/PrintField.h	Thu Jan 29 12:01:39 2004
>+++ edited/PrintField.h	Tue Mar 23 09:58:02 2004
>@@ -71,23 +71,24 @@
>
> /**
>  * PerformPrintField struct: a simple wrapper around the templated 'print'
>- * method of PrintField.  This is here as a workaround to a Metrowerks
>- * problem that prevents having templated member functions defined as
>- * out-of-line.  This struct defines one static method 'print', which
>+ * method of PrintField.
>+ * This struct defines one static method 'print', which
>  * prints an field to a stream (the two template parameters).  The Dim
>  * parameter is used to specialize this to the case of a 1D domain.  This is
>  * called by the 'print' templated member function of PrintField.
>  */
>
>-template<class S, class A, int Dim>
>+template<int Dim>
> struct PerformPrintField
> {
>+  template <class S, class A>
>   static void print(const PrintField &, S &, const A &);
> };
>
>-template<class S, class A>
>-struct PerformPrintField<S, A, 1>
>+template<>
>+struct PerformPrintField<1>
> {
>+  template<class S, class A>
>   static void print(const PrintField &, S &, const A &);
> };
>
>@@ -239,7 +240,7 @@
>           {
>             s << "Material #" << m << ", Centering #" << c << " " << a.centering(c)
>               << "\n"<< "-------------\n";
>-            PerformPrintField<S,A,A::dimensions>::print(*this, s, a.subField(m, c));
>+            PerformPrintField<A::dimensions>::print(*this, s, a.subField(m, c));
>           }
>     }
>
>@@ -375,7 +376,7 @@
>
> template<class S, class A>
> void
>-PerformPrintField<S,A,1>::print(const PrintField &p, S &s, const A &a)
>+PerformPrintField<1>::print(const PrintField &p, S &s, const A &a)
> {
>   // make sure this is the right function
>
>@@ -459,9 +460,10 @@
> */
> //-----------------------------------------------------------------------------
>
>-template<class S, class A, int Dim>
>+template<int Dim>
>+template<class S, class A>
> void
>-PerformPrintField<S,A,Dim>::print(const PrintField &p, S &s, const A &a)
>+PerformPrintField<Dim>::print(const PrintField &p, S &s, const A &a)
> {
>   int i, j, k;
>
>  
>


-- 
Jeffrey D. Oldham
oldham at codesourcery.com




From oldham at codesourcery.com  Wed Mar 24 10:17:30 2004
From: oldham at codesourcery.com (Jeffrey D. Oldham)
Date: Wed, 24 Mar 2004 02:17:30 -0800
Subject: [pooma-dev] [PATCH] Add PETSc wrapper.
In-Reply-To: <Pine.LNX.4.53.0403231025360.2417@bellatrix.tat.physik.uni-tuebingen.de>
References: <Pine.LNX.4.53.0403231025360.2417@bellatrix.tat.physik.uni-tuebingen.de>
Message-ID: <4061603A.1050506@codesourcery.com>

Richard Guenther wrote:

>Hi!
>
>This adds support for using the PETSc library of sparse (non-)linear
>(MPI-)parallel solvers with POOMA.  It does so by excercising the PETSc
>distributed array (DA) API for interfacing with POOMA engines.
>
>Accompanied with an example in Solvers/PETSc.  Tested with serial
>PETSc/POOMA and MPI PETSc/POOMA.
>
>Ok?
>  
>

It's great to get PETSc integrated into POOMA.  We might want to change 
the RCSinfo tags since you, not julianc nor shaney, did the work.  If 
there is interest, it might be interesting to write a webpage 
documenting how to use PETSc within POOMA.

>Richard.
>
>
>2004Mar23  Richard Guenther <richard.guenther at uni-tuebingen.de>
>
>	* src/Transform/PETSc.h: new.
>	examples/Solvers/PETSc/PETSc.cpp: new.
>	examples/Solvers/PETSc/include.mk: new.
>	examples/Solvers/PETSc/makefile: new.
>
>diff -Nru a/r2/examples/Solvers/PETSc/PETSc.cpp b/r2/examples/Solvers/PETSc/PETSc.cpp
>--- /dev/null	Wed Dec 31 16:00:00 1969
>+++ b/r2/examples/Solvers/PETSc/PETSc.cpp	Tue Mar 23 10:25:34 2004
>@@ -0,0 +1,100 @@
>+// Example on how to use PETSc linear solvers from inside a Pooma program.
>+// This solves the Poisson equation for a density distribution in a 3D
>+// Array to create the corresponding gravitational potential.
>+
>+#include <iostream>
>+#include "Transform/PETSc.h"
>+
>+#include "petscda.h"
>+#include "petscksp.h"
>+
>+void doit()
>+{
>+  typedef Array<2, double, MultiPatch<GridTag, Remote<Brick> > > Array_t;
>+  typedef Array_t::Layout_t::const_iterator layout_iter;
>+
>+  Interval<2> domain(8, 8);
>+  Loc<2> blocks = makeRBlocks(domain, Pooma::contexts());
>+  GridLayout<2> layout(domain, blocks, GuardLayers<2>(1), DistributedTag());
>+
>+  // Create DA
>+  Pooma::PoomaDA da(layout, DA_NONPERIODIC, DA_STENCIL_STAR, 1);
>+
>+  // Assemble matrix
>+  Mat jac;
>+  DAGetMatrix(da, MATMPIAIJ, &jac);
>+  {
>+    int mx, my;
>+    PetscScalar Hx, Hy, HxdHy, HydHx;
>+    DAGetInfo(da,0,&mx,&my,PETSC_NULL,0,0,0,0,0,0,0);
>+    Hx = 1.0 / (PetscReal)(mx-1); Hy = 1.0 / (PetscReal)(my-1);
>+    HxdHy = Hx/Hy; HydHx = Hy/Hx;
>+    int xs, ys, xm, ym;
>+    MatStencil row,col[5];
>+    DAGetCorners(da,&xs,&ys,PETSC_NULL,&xm,&ym,PETSC_NULL);
>+    PetscScalar v[5];
>+    for (int j=ys; j<ys+ym; j++){
>+      for(int i=xs; i<xs+xm; i++){
>+	row.i = i; row.j = j;
>+	if (i==0 || j==0 || i==mx-1 || j==my-1) {
>+	  v[0] = 2.0*(HxdHy + HydHx);
>+	  MatSetValuesStencil(jac,1,&row,1,&row,v,INSERT_VALUES);
>+	} else {
>+	  v[0] = -HxdHy;              col[0].i = i;   col[0].j = j-1;
>+	  v[1] = -HydHx;              col[1].i = i-1; col[1].j = j;
>+	  v[2] = 2.0*(HxdHy + HydHx); col[2].i = i;   col[2].j = j;
>+	  v[3] = -HydHx;              col[3].i = i+1; col[3].j = j;
>+	  v[4] = -HxdHy;              col[4].i = i;   col[4].j = j+1;
>+	  MatSetValuesStencil(jac,1,&row,5,col,v,INSERT_VALUES);
>+	}
>+      }
>+    }
>+  }
>+  MatAssemblyBegin(jac,MAT_FINAL_ASSEMBLY);
>+  MatAssemblyEnd(jac,MAT_FINAL_ASSEMBLY);
>+
>+  // problem
>+  Array_t rh(layout), ph(layout);
>+  rh(rh.totalDomain()) = 1.0;
>+  ph(ph.totalDomain()) = 0.0;
>+  Pooma::pinfo << "Density distribution:\n" << rh << std::endl;
>+
>+  // assemble rhs and solution
>+  Vec pph, prh;
>+  DACreateGlobalVector(da, &prh);
>+  VecDuplicate(prh, &pph);
>+
>+  da.assign(prh, rh);
>+
>+  // create solver
>+  KSP ksp;
>+  KSPCreate(PETSC_COMM_WORLD, &ksp);
>+  KSPSetTolerances(ksp, 1e-10, 1e-5, 1e5, 10);
>+  KSPSetOperators(ksp, jac, jac, DIFFERENT_NONZERO_PATTERN);
>+  KSPSetFromOptions(ksp);
>+
>+  // solve and copy solution
>+  KSPSetRhs(ksp, prh);
>+  KSPSetSolution(ksp, pph);
>+  KSPSolve(ksp);
>+  da.assign(ph, pph);
>+
>+  // show soultion
>+  Pooma::pinfo << "Solution:\n" << ph << std::endl;
>+}
>+
>+int main(int argc, char **argv)
>+{
>+  Pooma::initialize(argc, argv);
>+
>+  PetscSetCommWorld(MPI_COMM_WORLD);
>+  PetscInitialize(&argc, &argv, NULL, NULL);
>+
>+  doit();
>+
>+  // cleanup
>+  PetscFinalize();
>+  Pooma::finalize();
>+  return 0;
>+}
>+
>diff -Nru a/r2/examples/Solvers/PETSc/include.mk b/r2/examples/Solvers/PETSc/include.mk
>--- /dev/null	Wed Dec 31 16:00:00 1969
>+++ b/r2/examples/Solvers/PETSc/include.mk	Tue Mar 23 10:25:34 2004
>@@ -0,0 +1,59 @@
>+# Generated by mm.pl: Mon Mar  9 13:58:39 MST 1998
>+# ACL:license
>+#  ----------------------------------------------------------------------
>+#  This software and ancillary information (herein called "SOFTWARE")
>+#  called POOMA (Parallel Object-Oriented Methods and Applications) is
>+#  made available under the terms described here.  The SOFTWARE has been
>+#  approved for release with associated LA-CC Number LA-CC-98-65.
>+#
>+#  Unless otherwise indicated, this SOFTWARE has been authored by an
>+#  employee or employees of the University of California, operator of the
>+#  Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with
>+#  the U.S. Department of Energy.  The U.S. Government has rights to use,
>+#  reproduce, and distribute this SOFTWARE. The public may copy, distribute,
>+#  prepare derivative works and publicly display this SOFTWARE without
>+#  charge, provided that this Notice and any statement of authorship are
>+#  reproduced on all copies.  Neither the Government nor the University
>+#  makes any warranty, express or implied, or assumes any liability or
>+#  responsibility for the use of this SOFTWARE.
>+#
>+#  If SOFTWARE is modified to produce derivative works, such modified
>+#  SOFTWARE should be clearly marked, so as not to confuse it with the
>+#  version available from LANL.
>+#
>+#  For more information about POOMA, send e-mail to pooma at acl.lanl.gov,
>+#  or visit the POOMA web page at http://www.acl.lanl.gov/pooma/.
>+#  ----------------------------------------------------------------------
>+# ACL:license
>+
>+
>+# Wrap make components from SHARED_ROOT and the current directory in the
>+# proper order so that variables like ODIR have the correct directory-specific
>+# value at the right moment.  See the included files for details of what they
>+# are doing. This file should NOT be manually edited.
>+
>+# Set NEXTDIR, THISDIR and DIR_LIST
>+include $(SHARED_ROOT)/include1.mk
>+
>+# Include list of subdirectories to process
>+-include $(THISDIR)/subdir.mk
>+
>+# Set ODIR, PROJECT_INCLUDES, UNIQUE
>+include $(SHARED_ROOT)/include2.mk
>+
>+# Set list of object files, relative to ODIR
>+-include $(THISDIR)/objfile.mk
>+
>+# Set rules for the ODIR directory
>+include $(SHARED_ROOT)/compilerules.mk
>+
>+# Remove current dir from DIR_LIST
>+DIR_LIST :=$(filter-out $(firstword $(DIR_LIST)), $(DIR_LIST))
>+
>+
>+# ACL:rcsinfo
>+#  ----------------------------------------------------------------------
>+#  $RCSfile: include.mk,v $   $Author: swhaney $
>+#  $Revision: 1.3 $   $Date: 2000/03/07 13:15:37 $
>+#  ----------------------------------------------------------------------
>+# ACL:rcsinfo
>diff -Nru a/r2/examples/Solvers/PETSc/makefile b/r2/examples/Solvers/PETSc/makefile
>--- /dev/null	Wed Dec 31 16:00:00 1969
>+++ b/r2/examples/Solvers/PETSc/makefile	Tue Mar 23 10:25:34 2004
>@@ -0,0 +1,65 @@
>+# Generated by mm.pl: Mon Mar  9 13:58:39 MST 1998
>+# ACL:license
>+#  ----------------------------------------------------------------------
>+#  This software and ancillary information (herein called "SOFTWARE")
>+#  called POOMA (Parallel Object-Oriented Methods and Applications) is
>+#  made available under the terms described here.  The SOFTWARE has been
>+#  approved for release with associated LA-CC Number LA-CC-98-65.
>+#
>+#  Unless otherwise indicated, this SOFTWARE has been authored by an
>+#  employee or employees of the University of California, operator of the
>+#  Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with
>+#  the U.S. Department of Energy.  The U.S. Government has rights to use,
>+#  reproduce, and distribute this SOFTWARE. The public may copy, distribute,
>+#  prepare derivative works and publicly display this SOFTWARE without
>+#  charge, provided that this Notice and any statement of authorship are
>+#  reproduced on all copies.  Neither the Government nor the University
>+#  makes any warranty, express or implied, or assumes any liability or
>+#  responsibility for the use of this SOFTWARE.
>+#
>+#  If SOFTWARE is modified to produce derivative works, such modified
>+#  SOFTWARE should be clearly marked, so as not to confuse it with the
>+#  version available from LANL.
>+#
>+#  For more information about POOMA, send e-mail to pooma at acl.lanl.gov,
>+#  or visit the POOMA web page at http://www.acl.lanl.gov/pooma/.
>+#  ----------------------------------------------------------------------
>+# ACL:license
>+
>+# This file is user-editable
>+
>+PROJECT_ROOT = $(shell cd ../../..; pwd)
>+include $(PROJECT_ROOT)/config/head.mk
>+
>+PASS=APP
>+
>+default:: PETSc
>+
>+.PHONY: PETSc
>+
>+PETSc:: $(ODIR)/PETSc
>+
>+include $(SHARED_ROOT)/tail.mk
>+
>+$(ODIR)/PETSc.o: PETSc.cpp
>+	$(CXX) -o $@ -c $< $(RULE_CXXOPTS) $(RULE_INCLUDES) $(SUITE_DEFINES) \
>+		-DPETSC_USE_EXTERN_CXX \
>+		-I$(PETSC_DIR)/bmake/linux-gnu \
>+		-I$(PETSC_DIR)/include
>+
>+$(ODIR)/PETSc: $(ODIR)/PETSc.o
>+	$(CXX) -o $@ $^ $(RULE_LD_OPTS) \
>+		-L$(PETSC_DIR)/lib/libg/linux-gnu \
>+		-lpetscmat -lpetscksp -lpetscdm -lpetscvec -lpetscmat -lpetscdm -lpetsc -lpetscts -lpetscvec -lpetscsnes -lblas -llapack -lblas -lg2c -ldl -static
>+
>+# ACL:rcsinfo
>+#  ----------------------------------------------------------------------
>+#  $RCSfile: makefile,v $   $Author: julianc $
>+#  $Revision: 1.6 $   $Date: 2000/07/21 20:43:14 $
>+#  ----------------------------------------------------------------------
>+# ACL:rcsinfo
>diff -Nru a/r2/src/Transform/PETSc.h b/r2/src/Transform/PETSc.h
>--- /dev/null	Wed Dec 31 16:00:00 1969
>+++ b/r2/src/Transform/PETSc.h	Tue Mar 23 10:25:34 2004
>@@ -0,0 +1,396 @@
>+#ifndef POOMA_TRANSFORM_PETSC_H
>+#define POOMA_TRANSFORM_PETSC_H
>+
>+// PETSc interfacing with POOMA using the PETSc DA interface.
>+//
>+// Copyright (c) 2004 by Richard Guenther <richard.guenther at uni-tuebingen.de>
>+//
>+// This file is in the public domain.
>+
>+/** @file
>+ * @ingroup Utilities
>+ * @brief
>+ * Interfacing with the PETSc library of (non-)linear solvers.
>+ *
>+ * Interfacing supports the PETSc DA (distributed arrays) notion
>+ * for creating (non-)linear solvers for implicit finite difference
>+ * methods.  Using this wrappers you can fill your right-hand-side
>+ * vector from a POOMA engine and transfer the result-vector to
>+ * a POOMA engine.
>+ *
>+ * You are going to use the PetscDA class and its methods.
>+ * See examples/Solver/PETSc for how to use this.
>+ */
>+
>+#include "Pooma/Arrays.h"
>+#include "petscda.h"
>+
>+
>+template <class MeshTag, class T, class EngineTag>
>+class Field;
>+
>+
>+namespace Pooma {
>+
>+
>+/**
>+ * Helper to convert DALocalInfo domain info to appropriate
>+ * Pooma Interval
>+ */
>+
>+template <int Dim>
>+struct PoomaDAGetDomain;
>+
>+template <>
>+struct PoomaDAGetDomain<1> {
>+  static inline
>+  Interval<1> innerDomain(DALocalInfo& i)
>+  {
>+    return Interval<1>(i.xs, i.xs+i.xm-1);
>+  }
>+  static inline
>+  Interval<1> totalDomain(DALocalInfo& i)
>+  {
>+    return Interval<1>(i.gxs, i.gxs+i.gxm-1);
>+  }
>+};
>+
>+template <>
>+struct PoomaDAGetDomain<2> {
>+  static inline
>+  Interval<2> innerDomain(DALocalInfo& i)
>+  {
>+    return Interval<2>(Interval<1>(i.xs, i.xs+i.xm-1),
>+		       Interval<1>(i.ys, i.ys+i.ym-1));
>+  }
>+  static inline
>+  Interval<2> totalDomain(DALocalInfo& i)
>+  {
>+    return Interval<2>(Interval<1>(i.gxs, i.gxs+i.gxm-1),
>+		       Interval<1>(i.gys, i.gys+i.gym-1));
>+  }
>+};
>+
>+template <>
>+struct PoomaDAGetDomain<3> {
>+  static inline
>+  Interval<3> innerDomain(DALocalInfo& i)
>+  {
>+    return Interval<3>(Interval<1>(i.xs, i.xs+i.xm-1),
>+		       Interval<1>(i.ys, i.ys+i.ym-1),
>+		       Interval<1>(i.zs, i.zs+i.zm-1));
>+  }
>+  static inline
>+  Interval<3> totalDomain(DALocalInfo& i)
>+  {
>+    return Interval<3>(Interval<1>(i.gxs, i.gxs+i.gxm-1),
>+		       Interval<1>(i.gys, i.gys+i.gym-1),
>+		       Interval<1>(i.gzs, i.gzs+i.gzm-1));
>+  }
>+};
>+
>+
>+
>+/**
>+ * Helper to ease brick-engine -> vector copy
>+ */
>+
>+template <int Dim>
>+struct PoomaDACopy;
>+
>+template <>
>+struct PoomaDACopy<1> {
>+  template <class T>
>+  static
>+  void copy(Vec v, const Engine<1, T, Brick>& e)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<1> d(e.domain());
>+    for (int I=d.first(); I<=d.last(); ++I)
>+      pa[idx++] = e(I);
>+    VecRestoreArray(v, &pa);
>+  }
>+  template <class T>
>+  static
>+  void copy(const Engine<1, T, Brick>& e, Vec v)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<1> d(e.domain());
>+    for (int I=d.first(); I<=d.last(); ++I)
>+      e(I) = pa[idx++];
>+    VecRestoreArray(v, &pa);
>+  }
>+};
>+
>+template <>
>+struct PoomaDACopy<2> {
>+  template <class T>
>+  static
>+  void copy(Vec v, const Engine<2, T, Brick>& e)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<2> d(e.domain());
>+    for (int J=d[1].first(); J<=d[1].last(); ++J)
>+      for (int I=d[0].first(); I<=d[0].last(); ++I)
>+	pa[idx++] = e(I, J);
>+    VecRestoreArray(v, &pa);
>+  }
>+  template <class T>
>+  static
>+  void copy(const Engine<2, T, Brick>& e, Vec v)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<2> d(e.domain());
>+    for (int J=d[1].first(); J<=d[1].last(); ++J)
>+      for (int I=d[0].first(); I<=d[0].last(); ++I)
>+	e(I, J) = pa[idx++];
>+    VecRestoreArray(v, &pa);
>+  }
>+};
>+
>+template <>
>+struct PoomaDACopy<3> {
>+  template <class T>
>+  static
>+  void copy(Vec v, const Engine<3, T, Brick>& e)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<3> d(e.domain());
>+    for (int K=d[2].first(); K<=d[2].last(); ++K)
>+      for (int J=d[1].first(); J<=d[1].last(); ++J)
>+	for (int I=d[0].first(); I<=d[0].last(); ++I)
>+	  pa[idx++] = e(I, J, K);
>+    VecRestoreArray(v, &pa);
>+  }
>+  template <class T>
>+  static
>+  void copy(const Engine<3, T, Brick>& e, Vec v)
>+  {
>+    PetscScalar *pa;
>+    VecGetArray(v, &pa);
>+    int idx=0;
>+    Interval<3> d(e.domain());
>+    for (int K=d[2].first(); K<=d[2].last(); ++K)
>+      for (int J=d[1].first(); J<=d[1].last(); ++J)
>+	for (int I=d[0].first(); I<=d[0].last(); ++I)
>+	  e(I, J, K) = pa[idx++];
>+    VecRestoreArray(v, &pa);
>+  }
>+};
>+
>+
>+
>+/**
>+ * Struct to wrap extra global information about a DA.
>+ */
>+
>+struct PoomaDA {
>+
>+  /// Creates a PETSc DA from the specified layout.
>+  /// Extra arguments are like DACreateNd, namely the periodicity
>+  /// and stencil type and the stencil width.
>+
>+  template <class Layout>
>+  PoomaDA(const Layout &l, DAPeriodicType pt, DAStencilType st, int sw);
>+
>+  ~PoomaDA()
>+  {
>+    delete[] info;
>+    DADestroy(da);
>+  }
>+
>+
>+  /// Can use this as PETSc DA type.
>+
>+  operator DA() const { return da; }
>+
>+
>+  /// Assign from POOMA engine to PETSc vector.
>+
>+  template <int Dim, class T, class EngineTag>
>+  void assign(Vec v, const Engine<Dim, T, EngineTag> &e);
>+
>+  /// Assign from POOMA array to PETSc vector.
>+
>+  template <int Dim, class T, class EngineTag>
>+  void assign(Vec v, const Array<Dim, T, EngineTag> &a)
>+  {
>+    this->assign(v, a.engine());
>+  }
>+
>+  /// Assign from POOMA field to PETSc vector.
>+
>+  template <class MeshTag, class T, class EngineTag>
>+  void assign(Vec v, const Field<MeshTag, T, EngineTag> &f)
>+  {
>+    this->assign(v, f.fieldEngine().engine());
>+  }
>+
>+
>+  /// Assign from PETSc vector to POOMA engine.
>+
>+  template <int Dim, class T, class EngineTag>
>+  void assign(const Engine<Dim, T, EngineTag> &e, Vec v);
>+
>+  /// Assign from PETSc vector to POOMA array.
>+
>+  template <int Dim, class T, class EngineTag>
>+  void assign(const Array<Dim, T, EngineTag> &a, Vec v)
>+  {
>+    this->assign(a.engine(), v);
>+  }
>+
>+  /// Assign from PETSc vector to POOMA field.
>+
>+  template <class MeshTag, class T, class EngineTag>
>+  void assign(const Field<MeshTag, T, EngineTag> &f, Vec v)
>+  {
>+    this->assign(f.fieldEngine().engine(), v);
>+  }
>+
>+
>+private:
>+  DA da;
>+  int n;
>+  DALocalInfo *info;
>+
>+};
>+
>+
>+template <class Layout>
>+PoomaDA::PoomaDA(const Layout &l, DAPeriodicType pt, DAStencilType st, int sw)
>+{
>+  enum { Dim = Layout::dimensions };
>+
>+  // create DA
>+  if (Dim == 1) {
>+    DACreate1d(PETSC_COMM_WORLD,          /* MPI communicator */
>+	       pt,                        /* grid periodicity */
>+	       l.innerDomain()[0].size(), /* global domain size */
>+	       1,                         /* degrees of freedom */
>+	       sw,                        /* stencil width */
>+	       PETSC_NULL,                /* local domain sizes per dimension */
>+	       &this->da);
>+  } else if (Dim == 2) {
>+    DACreate2d(PETSC_COMM_WORLD,          /* MPI communicator */
>+	       pt,                        /* grid periodicity */
>+	       st,                        /* stencil type */
>+	       l.innerDomain()[0].size(),
>+	       l.innerDomain()[1].size(), /* global domain size */
>+	       PETSC_DECIDE, PETSC_DECIDE,/* # processors */
>+	       1,                         /* degrees of freedom */
>+	       sw,                        /* stencil width */
>+	       PETSC_NULL, PETSC_NULL,    /* local domain sizes per dimension */
>+	       &this->da);
>+  } else if (Dim == 3) {
>+    DACreate3d(PETSC_COMM_WORLD,          /* MPI communicator */
>+	       pt,                        /* grid periodicity */
>+	       st,                        /* stencil type */
>+	       l.innerDomain()[0].size(), l.innerDomain()[1].size(),
>+	       l.innerDomain()[2].size(), /* global domain size */
>+	       PETSC_DECIDE, PETSC_DECIDE,
>+	       PETSC_DECIDE,              /* # processors */
>+	       1,                         /* degrees of freedom */
>+	       sw,                        /* stencil width */
>+	       PETSC_NULL, PETSC_NULL,
>+	       PETSC_NULL,                /* local domain sizes per dimension */
>+	       &this->da);
>+  }
>+
>+  // collect local information
>+  int m, n, p;
>+  DAGetInfo(this->da, PETSC_NULL, PETSC_NULL, PETSC_NULL, PETSC_NULL,
>+            &m, &n, &p,
>+            PETSC_NULL, PETSC_NULL, PETSC_NULL, PETSC_NULL);
>+  this->n = m*n*p;
>+  PInsist(Pooma::contexts() == this->n, "nr patches");
>+  this->info = new DALocalInfo[this->n];
>+  DAGetLocalInfo(this->da, &this->info[Pooma::context()]);
>+
>+  // distribute local information
>+  // fixme - MPI_Allgather wrapper missing
>+#if POOMA_MPI
>+  MPI_Allgather(&this->info[Pooma::context()], sizeof(DALocalInfo), MPI_CHAR,
>+		this->info, sizeof(DALocalInfo), MPI_CHAR,
>+		MPI_COMM_WORLD);
>+#endif
>+}
>+
>+template <int Dim, class T, class EngineTag>
>+void PoomaDA::assign(Vec v, const Engine<Dim, T, EngineTag> &e)
>+{
>+  typedef Engine<Dim, T, EngineTag> Engine_t;
>+  typedef typename NewEngine<Engine_t, Interval<Dim> >::Type_t ViewEngine_t;
>+
>+  // our local brick engine
>+  Engine<Dim, T, Brick> local_e;
>+  Interval<Dim> local_I;
>+
>+  // loop over all DA patches
>+  for (int i=0; i<this->n; ++i) {
>+	// create DA patch context local pooma array
>+        Interval<Dim> lPatch(PoomaDAGetDomain<Dim>::innerDomain(this->info[i]));
>+	Array<Dim, T, Remote<Brick> > a;
>+	a.engine() = Engine<Dim, T, Remote<Brick> >(i, lPatch);
>+	Array<Dim, T, typename ViewEngine_t::Tag_t> e_array(ViewEngine_t(e, lPatch));
>+	a = e_array;
>+
>+	// remember local engine
>+	if (i == Pooma::context()) {
>+	  local_e = a.engine().localEngine();
>+	  local_I = lPatch;
>+	}
>+  }
>+  Pooma::blockAndEvaluate();
>+
>+  // do the copy locally
>+  PoomaDACopy<Dim>::copy(v, local_e);
>+}
>+
>+template <int Dim, class T, class EngineTag>
>+void PoomaDA::assign(const Engine<Dim, T, EngineTag> &e, Vec v)
>+{
>+  typedef Engine<Dim, T, EngineTag> Engine_t;
>+  typedef typename NewEngine<Engine_t, Interval<Dim> >::Type_t ViewEngine_t;
>+
>+  // our local brick engine
>+  Interval<Dim> local_I(PoomaDAGetDomain<Dim>::innerDomain(this->info[Pooma::context()]));
>+  Engine<Dim, T, Brick> local_e(local_I);
>+
>+  // copy into the local brick
>+  // if it were not the different array index ordering we could construct
>+  // the brick engine with external data and avoid the double copying
>+  PoomaDACopy<Dim>::copy(local_e, v);
>+
>+  // loop over all DA patches
>+  for (int i=0; i<this->n; ++i) {
>+	// create DA patch context local pooma array
>+	Interval<Dim> lPatch(PoomaDAGetDomain<Dim>::innerDomain(this->info[i]));
>+	Array<Dim, T, Remote<Brick> > a;
>+	a.engine() = Engine<Dim, T, Remote<Brick> >(i, lPatch);
>+
>+	// override local engine with our one
>+	if (Pooma::context() == i)
>+	  a.engine().localEngine() = local_e;
>+
>+	// distribute the copy
>+	Array<Dim, T, typename ViewEngine_t::Tag_t> e_array;
>+	e_array.engine() = ViewEngine_t(e, lPatch);
>+	e_array = a;
>+  }
>+}
>+
>+
>+} // namespace Pooma
>+
>+#endif
>  
>


-- 
Jeffrey D. Oldham
oldham at codesourcery.com




From rguenth at tat.physik.uni-tuebingen.de  Wed Mar 24 18:29:16 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Wed, 24 Mar 2004 19:29:16 +0100
Subject: [pooma-dev] [PATCH] Add PETSc wrapper.
In-Reply-To: <4061603A.1050506@codesourcery.com>
References: <Pine.LNX.4.53.0403231025360.2417@bellatrix.tat.physik.uni-tuebingen.de> <4061603A.1050506@codesourcery.com>
Message-ID: <4061D37C.40006@tat.physik.uni-tuebingen.de>

Jeffrey D. Oldham wrote:
> Richard Guenther wrote:
> 
>> Hi!
>>
>> This adds support for using the PETSc library of sparse (non-)linear
>> (MPI-)parallel solvers with POOMA.  It does so by excercising the PETSc
>> distributed array (DA) API for interfacing with POOMA engines.
>>
>> Accompanied with an example in Solvers/PETSc.  Tested with serial
>> PETSc/POOMA and MPI PETSc/POOMA.
>>
>> Ok?
> 
> It's great to get PETSc integrated into POOMA.  We might want to change 
> the RCSinfo tags since you, not julianc nor shaney, did the work.  If 
> there is interest, it might be interesting to write a webpage 
> documenting how to use PETSc within POOMA.

Yes, but I'd rather have some opinion where to put it, as the docs/ 
webpages are rather out of date.  Also whoever wants to use PETSc with 
POOMA had better be familiar with PETSc already.  I think for now the 
example is enough to get the idea.

Committed.

Thanks,
Richard.


From rguenth at tat.physik.uni-tuebingen.de  Wed Mar 31 14:45:41 2004
From: rguenth at tat.physik.uni-tuebingen.de (Richard Guenther)
Date: Wed, 31 Mar 2004 16:45:41 +0200 (CEST)
Subject: Relations and required copy constructor
Message-ID: <Pine.LNX.4.53.0403311639250.16380@bellatrix.tat.physik.uni-tuebingen.de>

Hi!

Does anyone remember why relation functors require a "copy constructor"
with the relation target as the second parameter?  I.e. why

RelationBase.h:
template<class Target, class Functor>
class RelationBase : public RelationRetargetBase<Target> {
public:


//---------------------------------------------------------------------------
  // Constructors.

  // Initialize the target and functor.

  RelationBase(const Target &t, const Functor &f)
  : RelationRetargetBase<Target>(t),
    functor_m(f, t)
    { }

here functor_m is constucted from f and t and not just f

which is called from newRelation(...) via RelationN constructor:

Relations.h:
template<class Target, class R1, class R2, class RelationFunctor>
class Relation2: public RelationBase<Target, RelationFunctor>
{
public:


//---------------------------------------------------------------------------
  // Constructors.

  Relation2(const Target &t, const R1 &r1, const R2 &r2,
    const RelationFunctor &f)
  : RelationBase<Target, RelationFunctor>(t, f), r1_m(r1), r2_m(r2)
  { }

?

I.e. what was the purpose of exposing the target to the relation functor
constructor here?

Thanks,

Richard.

--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/