[Numpy-discussion] Problem with numpy.linalg.eig?

Geoffrey Zhu zyzhu2000@gmail....
Mon Nov 12 15:02:38 CST 2007


On Nov 12, 2007 12:37 PM, Keith Goodman <kwgoodman@gmail.com> wrote:
>
> On Nov 12, 2007 10:10 AM, Peter Creasey <p.e.creasey.00@googlemail.com> wrote:
> > The following code calling numpy v1.0.4 fails to terminate on my machine,
> > which was not the case with v1.0.3.1
> >
> >     from numpy import arange, float64
> >     from numpy.linalg import eig
> >     a = arange(13*13, dtype = float64)
> >     a.shape = (13,13)
> >     a = a%17
> >     eig(a)
>
> It sounds like the same problem that was reported in this thread:
>
> http://thread.gmane.org/gmane.comp.python.numeric.general/17456/focus=17465
>
> A friend of mine says the windows binary of 1.0.4 also hangs on eigh
> and lstsq (so linalg in general). I don't have that problem on 1.0.5
> compiled on GNU/Linux.
>
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The code hangs on my machine too. In the thread you mentioned above, I
wrote that using the EGG instead of MSI appears to fix the
numpy.test() problem, but maybe it just somehow hides it.


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