[SciPy-user] scipy crash with fastumath

Olivier Ravard olivier.ravard at novagrid.com
Tue Aug 31 11:50:50 CDT 2004


----- Original Message -----
From: "Travis E. Oliphant" <oliphant at ee.byu.edu>
To: "Olivier Ravard" <olivier.ravard at novagrid.com>; "SciPy Users List"
<scipy-user at scipy.net>
Sent: Tuesday, August 31, 2004 6:22 PM
Subject: Re: [SciPy-user] scipy crash with fastumath


> Olivier Ravard wrote:
> > Hi everybody,
> >
> > As I (and others) already mentioned in this mailing list, there
> > is a python crash (like an exit) when we use scipy under windows for a
> > simple operation like :
> >
> > from scipy import *
> > a = zeros(300000,typecode='F')
> > c=a*a
> >
> > Analyzing the scipy source code, it seems to come from the
> > *fastumath* module : I comment every line that import fastumath
> > and it works !!!
>
> Does it just happen with typecode 'F'?
>
no but even with typecode 'D'

> Does it just happen with multiplication?

No but for every operation on an array

>
> Does it just happen after a certain array size?
>

Yes. The limit value is 258168

> It is just happening with windows, right?
>

yes.

>
> -Travis



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