[Numpy-discussion] Bug in built in SVD?
Nadav Horesh
nadavh at visionsense.com
Wed Aug 11 04:49:02 EDT 2004
When numarray is compiled with the buit-in linear-algebra routine the svd routine runs into an infinite loop.
Platform2: python 2.3.4 and 2.4a2; numarray 1.1; gcc 3.4.1; RH9 and gentoo 1.4
example:
>> from numarray.linear_algebra.mlab import *
>>> svd(arange(20.0, shape = (5,4)))
... infine loop ...
--------------------------------------------------------------------------
svd runs OK when compiled againts external LAPACK.
BTW: Why numarray used dgesdd routine for SVD, and not the svd routine that has the ATLAS equivalent?
Nadav.
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