[vsipl++] [patch] Benchmarking bits, constructor for Whole_dist

[Jules Bergmann]

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Jules Bergmann wrote:
> This patch mostly contains benchmarks bits: new benchmarks for FFTM and 
> vector-matrix multiply.  Additional cases for fast convolution. 
> Parallelize some fast convolution cases.
> 
> However, the patch also contains a new constructor for Whole_dist that 
> takes a number of subblocks.  Since whole distributions can't be 
> subdivided, the number of subblocks must always be 1.  This is checked 
> at runtime.
> 
> This allows maps to be constructed a bit more conveniently.  For 
> example, to construct a map with the first dimension distributed by 
> block and the second dimension not distributed, you can now write:
> 
>     typedef Map<Block_dist, Whole_dist> map_type;
> 
>     map_type map(num_proc, 1);
> 
> Previously, you would have to write:
> 
>     map_type map(num_proc, Whole_dist());
> 
>                 -- Jules
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