[Haskell] repa not running in parallel?

[Alexander Herz]

Problem solved!
Sorry for using the wrong list.

Alex

On 11/07/2013 10:40 AM, Alexander Herz wrote:
> Hi,
>
> I'm new to haskell and I tried to reproduce the perfomance values from 
> the paper "Regular, Shape-polymorphic, Parallel Arrays in Haskell".
>
> I modified the repa-mmult example from the repa-example package to use 
> the mmultP from Data.Array.Repa.Algorithms.Matrix.
>
> Then I compile it with "ghc -threaded -fglasgow-exts -O Main.hs" but 
> running it with two large matrices :
>
> "./Main -random 4096 4096 -random 4096 4096" I can see that only one 
> of my 4 cpus is utilized.
>
> What am I doing wrong?
>
> Note: The unmodified repa-example also does not run in parallel.
>
> Thx,
> Alex
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