Re: [ublas] [PATCH 3/3] boost::ublas increasing the range of BLAS level 3 benchmarks

Subject: Re: [ublas] [PATCH 3/3] boost::ublas increasing the range of BLAS level 3 benchmarks
From: Nasos Iliopoulos (nasos_i_at_[hidden])
Date: 2016-03-08 13:22:53

I suppose a define switch to disable the parallelization all together 
would be ok right?

-N

On 03/08/2016 01:12 PM, Riccardo Rossi wrote:
>
> Well the problem is that fixed matrices and vectors can not be used if 
> you don t know the size at compile time
>
> In my application (finite elements) I have Millons of matrices of size 
> around 10by 10 on which I operate within outer openmp loops.
>
> Having openmp in the matrix would be a killer for me
>
> Riccardo
>
> On 7 Mar 2016 18:13, "Nasos Iliopoulos" <nasos_i_at_[hidden] 
> <mailto:nasos_i_at_[hidden]>> wrote:
>
>     That is correct,
>     there are various options here but none is optimal. Do you have
>     any suggestions?
>
>     Note: we now have fixed_vector and fixed_matrix classes than can
>     be used to make compile time decisions with respect to size.
>
>
>     -Nasos
>
>     On 03/07/2016 11:56 AM, Riccardo Rossi wrote:
>>     Hi,
>>
>>     just to give my two cents, some care shall be taken so that there
>>     is no overhead for very small matrices (say 3*3)
>>
>>     cheers
>>     Riccardo
>>
>>     On Sun, Mar 6, 2016 at 9:58 PM, palik imre
>>     <imre_palik_at_[hidden] <mailto:imre_palik_at_[hidden]>> wrote:
>>
>>         It just ocured to me, that based on the descriptor struct it
>>         would be possible to choose between parallel and serial
>>         implementation of the kernels.
>>
>>         Anybody would be interested in having something like that in
>>         ublas?
>>
>>         Would an OpenMP parallel implementation be accepted to the
>>         library?
>>
>>         Thanks,
>>
>>         Imre
>>
>>
>>         On Sunday, 6 March 2016, 10:43, palik imre
>>         <imre_palik_at_[hidden] <mailto:imre_palik_at_[hidden]>> wrote:
>>
>>
>>         Fork is here:
>>         https://github.com/imre-palik/ublas/tree/feature/ublas00004_simd_gemm
>>
>>         pull request is sent.
>>
>>
>>
>>
>>
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>>
>>
>>
>>
>>     -- 
>>
>>     *Riccardo Rossi
>>     *
>>
>>     PhD, Civil Engineer
>>
>>
>>     member of the Kratos Team: www.cimne.com/kratos
>>     <http://www.cimne.com/kratos>
>>
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>>
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>>
>>
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>>
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>
>
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