[PATCH] Document OpenMP/MPI

[Jeffrey D. Oldham]

Richard Guenther wrote:
> Hi!
> 
> While the documentation beyond docs/ is in a rather bad shape, this adds a
> paragraph to parallelism.html describing the new --mpi and --openmp modes.
> 
> Ok?

Yes.

> Thanks,
> 
> Richard.
> 
> 
> ===== parallelism.html 1.1 vs edited =====
> --- 1.1/r2/docs/parallelism.html	Mon May 13 17:47:21 2002
> +++ edited/parallelism.html	Fri Jan  9 13:29:04 2004
> @@ -1,4 +1,4 @@
> -<h1>POOMA 2.3 parallel model</h1>
> +<h1>POOMA post-2.4 parallel model</h1>
> 
>  <p>CONTEXT: In discussing the parallelism models that
>  POOMA supports, the word `context' has a particular
> @@ -40,6 +40,15 @@
>  The 2.4 release should address these issues and permit
>  a parallel model with multithreaded contexts that communicate
>  with each other through messages.
> +
> +<p>After POOMA 2.4 two new models of parallelism are supported.  Namely
> +use of OpenMP thread level parallelization, if supported by the compiler,
> +and the use of an available MPI library such as MPICH or a vendor provided
> +implementation.  Both models, MPI and OpenMP, may be combined simultaneously
> +if the MPI implementation supports this kind of operation.  This is especially
> +useful for clusters of SMP workstations.  Those new modes of operation can
> +be specified by the --mpi and --openmp configure switches.
> +
> 
>  <h3>CHEETAH overview:</h2>
> 


-- 
Jeffrey D. Oldham
oldham at codesourcery.com