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: Riccardo Rossi (rrossi_at_[hidden])
Date: 2016-03-08 13:12:48

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]> 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]> 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]>
>> wrote:
>>
>>
>> Fork is here:
>> https://github.com/imre-palik/ublas/tree/feature/ublas00004_simd_gemm
>>
>> pull request is sent.
>>
>>
>>
>>
>>
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>> Sent to: rrossi_at_[hidden]
>>
>
>
>
> --
>
>
> *Riccardo Rossi *
>
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