[Numpy-discussion] linalg.svd not working?

David Cournapeau david@ar.media.kyoto-u.ac...
Wed May 6 04:10:20 CDT 2009


Muhammad Alkarouri wrote:
> --- On Wed, 6/5/09, David Cournapeau <david@ar.media.kyoto-u.ac.jp> wrote:
> ...
>   
>> What does ldd lapack_lite.so returns (lapack_lite.so is in
>> numpy/linalg,
>> in your installed directory) ? It may be that numpy uses
>> gfortran,
>> whereas ATLAS is built with g77. gfortran and g77 should
>> not be mixed,
>>     
>
> Thanks David. I went there and found that lapack_lite.so didn't link to ATLAS in the first place. So I rebuilt numpy to ensure that. Now I have:
>   

Ok, so that's not a gfortran problem. As Chuck, I think that's an atlas
problem (you could check by compiling without ATLAS: ATLAS=None python
setup.py build after removing the build directory). Your gcc compiler is
quite old, so I would not be surprised it that were related,

cheers,

David


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