[Numpy-discussion] Intel MKL on Core2 system

Ryan May rmay31@gmail....
Wed Mar 11 13:56:19 CDT 2009


On Wed, Mar 11, 2009 at 1:34 PM, Francesc Alted <faltet@pytables.org> wrote:

> A Wednesday 11 March 2009, Ryan May escrigué:
> > Hi,
> >
> > I noticed the following in numpy/distutils/system_info.py while
> > trying to get numpy to build against MKL:
> >
> >             if cpu.is_Itanium():
> >                 plt = '64'
> >                 #l = 'mkl_ipf'
> >             elif cpu.is_Xeon():
> >                 plt = 'em64t'
> >                 #l = 'mkl_em64t'
> >             else:
> >                 plt = '32'
> >                 #l = 'mkl_ia32'
> >
> > So in the autodetection for MKL, the only way to get plt (platform)
> > set to 'em64t' is to test true for a Xeon.  This function returns
> > false on my Core2 Duo system, even though the platform is very much
> > 'em64t'.  I think that check should instead read:
> >
> > elif cpu.is_Xeon() or cpu.is_Core2():
> >
> > Thoughts?
>
> This may help you to see the developer's view on this subject:
>
> http://projects.scipy.org/numpy/ticket/994
>
> Cheers,
>
> --
> Francesc Alted
> _______________________________________________
> Numpy-discussion mailing list
> Numpy-discussion@scipy.org
> http://mail.scipy.org/mailman/listinfo/numpy-discussion
>


You know, I knew this sounded familiar.  If you regularly build against MKL,
can you send me your site.cfg.  I've had a lot more success getting the
build to work using the autodetection than the blas_opt and lapack_opt
sections.   Since the autodetection doesn't seem like the accepted way, I'd
love to see how to get the accepted way to actually work. :)

Ryan

-- 
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma
Sent from: Norman Oklahoma United States.
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