On 06/22/10 10:10 AM, François Bissey wrote:
Someone commented the other day that he could not understand why BLAS
was in Sage when we had ATLAS. This was in response to my concern
about linbox not being able to find BLAS
That was me. For info sage-on-gentoo only uses ATLAS without any issues.
I believe the blas spkg only ship libblas.a all the functionality of which
should be in libf77blas.a shipped by ATLAS.
Francois
Thank you. It sounds then that BLAS can probably be removed from Sage, which
will be a good thing. It saves a bit of disk space, saves time compiling it, and
since it is not even tested, is would remove one uncertainty.
I noticed linbox complains it could not find the C interface to BLAS
http://trac.sagemath.org/sage_trac/ticket/9101
Given it is all written in Fortran, that does not totally surprise me.
I'll try to rebuild Sage on OpenSolaris without BLAS and see if Linbox will work
with the ATLAS package instead. But even if it does not, it sounds as though
BLAS can be removed, since you are not using it on Gentoo.
I guess with a project like Sage, it is very easy to collect baggage over the
years. I wonder if there are any more unnecessary standard packages? Are you
aware of any that you do not use on Gentoo, but which are in Sage?
Dave
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