[Numpy-discussion] FPE on tensordot
Alexandre Fayolle
alexandre.fayolle at logilab.fr
Tue Sep 18 08:07:14 EDT 2007
Hi,
A user of some code I've written is experiencing some strange behaviour
with numpy.tensordot. I have unfortunately no access to his computer and
cannot reproduce the crash on my machine. The short way of reproducing
this is:
import numpy
a=numpy.array([0.5,0.5])
b=numpy.array([[0.,1.],[2.,3.]])
numpy.tensordot(a,b,axes=(0,0))
This works and returns array([ 1., 2.])
import numpy
a=numpy.array([0.4,0.5])
b=numpy.array([[0.,1.],[2.,3.]])
numpy.tensordot(a,b,axes=(0,0))
This crashes with an FPE.
He is running Linux (Debian sarge based) with python 2.3.5. Numpy
1.0.3.1 was compiled manually by the admins of the lab (and I don't know
which options they used, probably the default). The machine is a 32bit
Intel.
I'm puzzled, and welcome any insight on this.
Regards
--
Alexandre Fayolle LOGILAB, Paris (France)
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