[SciPy-User] many test failures on windows 64
Wed Jul 7 17:57:51 CDT 2010
On 7/6/2010 11:43 AM, Pauli Virtanen wrote:
> Tue, 06 Jul 2010 11:53:22 -0600, Charles R Harris wrote:
>> Let's get this thread back to the errors. The problems seem specific to
>> the python.org amd64 python, is that correct?
> The SuperLU failures puzzle me. It should be "straightforward" C code,
> and I don't understand what can go wrong there. The "Factor is exactly
> singular" error indicates essentially means that SuperLU thinks it
> detects a zero pivot or something, so something seems to fail at a fairly
> low level.
> This seems quite difficult to debug without a Win-64 at hand.
> Another thing is that Gohlke's binaries are also built against MKL, and
> SuperLU does call BLAS routines. I wonder if something can break because
> of that...
Apparently it can. When I link SuperLU against CBLAS (from the
SuperLU_4.0 distribution) instead of MKL 10.2 the test errors
"RuntimeError: Factor is exactly singular" disappear. Now I get many
more "TypeError: array cannot be safely cast to required type" failures,
but that's a different problem.
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