[Numpy-discussion] Changing the distributed binary for numpy 1.0.4 for windows ?

Matthieu Brucher matthieu.brucher at gmail.com
Mon Dec 10 10:30:18 EST 2007


2007/12/10, Alexander Michael <lxander.m at gmail.com>:
>
> On Dec 10, 2007 6:48 AM, David Cournapeau <david at ar.media.kyoto-u.ac.jp>
> wrote:
> > Hi,
> >
> >     Several people reported problems with numpy 1.0.4 (See #627 and
> > #628, but also other problems mentionned on the ML, which I cannot
> > find). They were all solved, as far as I know, by a binary I produced
> > (simply using mingw + netlib BLAS/LAPACK,  no ATLAS). Maybe it would be
> > good to use those instead ? (I can recompile them if there is a special
> > thing to do to build them)
>
> Do I understand correctly that you are suggesting removing ATLAS from
> the Windows distribution? Wouldn't this make numpy very slow? I know
> on RHEL5 I see a very large improvement between the basic BLAS/LAPACK
> and ATLAS. Perhaps we should make an alternative Windows binary
> available without ATLAS just for those having problems with ATLAS?


That's why David proposed the netlib version of BLAS/LAPACK and not the
default implementation in numpy.

I would agree with David ;)

Matthieu
-- 
French PhD student
Website : http://matthieu-brucher.developpez.com/
Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92
LinkedIn : http://www.linkedin.com/in/matthieubrucher
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