Re: [Help-gsl] Parallelization of GSL CBLAS implementation with OpenMP?

[José Luis García Pallero]

El día 6 de enero de 2011 17:40, John Chludzinski
<address@hidden> escribió:
> I'm primarily interested in an OpenCL implementation of GSL?  ---John

Mmm... I don't know. I'm talking only about GSL CBLAS implementation,
not all GSL. Also, I think that the implementation in OpenCL would
require a redesign of overall GSL.

> 2011/1/6 José Luis García Pallero <address@hidden>
>>
>> Hello,
>> I don't know if this topic was discussed earlier in some of the GSL
>> lists. What about the possibility of the parallelization of the GSL
>> CBLAS implementation via OpenMP? Nowadays, the multicore processors
>> are the most common hardware and recent compilers (gcc since 4.2
>> series) supports the OpenMP standard. I think that it will be easy to
>> parallelize at least the CBLAS level 3 (since they perform the most
>> computations) functions.
>> Is clear that who needs powerful must use an optimised CBLAS
>> implementation as ATLAS or GotoBLAS (now free software under the BSD
>> license: http://www.tacc.utexas.edu/tacc-projects/gotoblas2/) but I
>> think that using OpenMP in GSL CBLAS would improve the speed of the
>> standard GSL distribution and it wouldn't suppose a big effort of
>> programming.
>> Attached I send a patch for the source_gemm_r.h file in order to
>> parallelize dgemm and sgemm functions. It is only a patch in order to
>> see the simplicity of adding OpenMP support. I didn't test it as now
>> I'm not have here a multicore here.
>>
>> Thanks
>>
>> --
>> *****************************************
>> José Luis García Pallero
>> address@hidden
>> (o<
>> / / \
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>> Use Debian GNU/Linux and enjoy!
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>>
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>
>



-- 
*****************************************
José Luis García Pallero
address@hidden
(o<
/ / \
V_/_
Use Debian GNU/Linux and enjoy!
*****************************************