[Numpy-discussion] Atlas build issues

Pearu Peterson pearu.peterson@gmail....
Wed Oct 20 02:32:48 CDT 2010

On 10/20/2010 10:23 AM, Gael Varoquaux wrote:
> I am really sorry to be landing on the mailing list with Atlas build
> issues. I usually manage be myself to build Atlas, but this time I have
> been fighting for a couple of days with little success.
> The reason I need to build Atlas is that our work computers are stuck on
> Mandriva 2008.0, in which the version of Atlas packaged by the system is
> not usable.
> Anyhow, I lost quite a while with Atlas 3.9.26, for which I was never
> able to build libaries that could be used in a '.so' (seemed that the
> -fPIC was not working, but really I don't understand what was going on in
> the maze of makefiles). After that I switched to 3.9;25, which I have
> already have gotten working on another system (Mandriva 2008, but 32
> bits). Know everything builds, but I get a missing symbol at the import:
> from numpy.linalg import lapack_lite
> ImportError: /volatile/varoquau/dev/numpy/numpy/linalg/lapack_lite.so:
> undefined symbol: zgesdd_
> I don't have g77 installed on the system at all, to avoid gfortran/g77
> mixups.
> I am attaching the stout of 'python setup.py build_ext -i', in case it
> contains useful information.
> Would anybody have suggestions with regards to what I am doing wrong?

I could not read the stdout but perhaps you didn't build atlas with 
complete lapack. The basic steps for that are described in


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