[SciPy-dev] bug: indexing CSR matrix, 64bits
Mon May 12 04:11:45 CDT 2008
Nathan Bell wrote:
> On Fri, May 9, 2008 at 4:46 AM, Robert Cimrman <firstname.lastname@example.org> wrote:
>> indexing by slices is broken on a 64 bit machine. On a 32 bit one, all
>> is ok. Is something missing in the INSTANTIATE_ALL macro in sparsetools.i?
> Robert, I can't reproduce your problem on my system (Ubuntu 8.04, Athlon 64):
> $uname -a
> Linux droog 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC 2008
> x86_64 GNU/Linux
$ uname -a Linux uk709n03-kme 2.6.22-gentoo-r8 #1 SMP Fri Sep 7 09:38:53
CEST 2007 x86_64 Intel(R) Xeon(R) CPU X5355 @ 2.66GHz GenuineIntel GNU/Linux
> Since your .indptr and .indices arrays are 32-bits, I doubt that the
> problem is with INSTANTIATE_ALL. Currently sparsetools does not
> instantiate functions using 64-bit indices because it doubles the
> compilation time and it's not likely that anyone will have sparse
> matrices with dimensions >= 2**31 anytime soon. OTOH I don't know
> what else it could be so please try the following:
Yep. I do not need 64 bit indices. I have also installed swig 1.3.34 to
match your version.
However the problem persists and is really strange:
- I have created a small test script and it works
- in pdb, indexing with slices works too
(Pdb) mtx[slice(2290, 2845, None),slice(2290, 2845, None)]
<555x555 sparse matrix of type '<type 'numpy.float64'>'
with 3313 stored elements in Compressed Sparse Row format>
- but not with the 'ir', 'ic'
slice(2290, 2845, None)
*** NotImplementedError: Wrong number of arguments for overloaded
Possible C/C++ prototypes are: ...
So thanks for your suggestions, but I fear the bug might not be in
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