[Python-modules-team] Bug#464784: python-numpy please transition to gfortran/libblas-dev/lapack-dev
ondrej at certik.cz
Sun Feb 24 12:14:16 UTC 2008
On Sun, Feb 24, 2008 at 12:44 PM, David Cournapeau
<david at ar.media.kyoto-u.ac.jp> wrote:
> Following a comment done on numpy bug tracking system (ticket #667):
> dotblas uses the CBLAS API, and as such needs CBLAS; CBLAS functions
> (cblas_*) are simply not provided by BLAS. They are provided by ATLAS,
> though. So you cannot build dotblas with the netlib BLAS package (the
> one used in refblas3).
> This explains why numpy is 'picky' about ATLAS, more than other
> packages: numpy does not only use the F77 interface, but also the
> "official" C interface (I guess, but I am not sure, that the point is to
> have a fast multiplication available for numpy even if no fortran
> compiler is available on the building machine).
> To be able to replace libraries at runtime for a numpy built with
> ATLAS, you would need a libcblas, which is not available in debian
> AFAIK. So there is really no way around it: you have to wait for atlas,
> and built against it.
Thanks David for the explanation.
So I am not going to do anything for this bug. However, if anyone
knows what to do, please
let us know. Feel free to discuss it on the debian-python mailinglist
and then fix the package in our svn.
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