[SciPy-user] IMPORTANT BUG in scipy... rescue me !!
christophe grimault
christophe.grimault at novagrid.com
Tue Aug 31 03:44:08 EDT 2004
Do you think that there is change in the CVS version, from
0.3.0_266.4242 to 0.3.1_283.422,
that could explain this ?
If someone using the latest version (0.3.1_283.422) could try to
reproduce the
bug (with the 3 lines just below), and tell me about it, it would be
helpfull ...
Thanks in advance,
christophe grimault wrote:
> Hi all,
>
> There is a critical bug in scipy, about *very* basic operations
> between arrays,
> under MS Windows. Here's the facts :
>
> import scipy
> a=scipy.arange( N, typecode='F' )
> c=a*a
>
> crashes with N = 258168. The same code does not crash for N = 258167.
> So 258168 is a
> kind of limit, because for any lower value, it is OK. This is no
> memory problem (258168 is
> not a big value and I have 512 Mb RAM !-). Moreover, if I change scipy
> for Numeric, the problem disappears !
>
> Also, the interpreter crashes with no error message at all, as if some
> 'exit()' code was
> encountered somewhere.
>
> What's going on ? How to solve this ?
>
> To me it is a very important bug. We can deal on this list about the
> color of graphics or
> about some weird special function... but here we're dealing about the
> integrity of simple
> computations.
>
> Could the readers of this mail try the code on their windows box and
> tell me if they
> can reproduce the bug. Any idea to overcome this problem, or just a
> hint is welcome, because
> I'm completely stuck !!!!!
>
> Thanks in advance,
>
> C. Grimault
>
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>
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