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RFC: building numpy against OpenBLAS.
From: |
Federico Beffa |
Subject: |
RFC: building numpy against OpenBLAS. |
Date: |
Sat, 23 May 2015 09:20:47 +0200 |
Ricardo Wurmus <address@hidden> writes:
> Hi Guix,
>
> python-numpy currently depends on Atlas, which means that it cannot be
> substituted with a binary built elsewhere. OpenBLAS is an alternative
> to Atlas and the binary can be used on all supported CPUs at runtime.
> This makes it possible for us to make numpy substitutable.
Out of curiosity, could you outline how OpenBLAS is optimized for a
specific CPU architecture while being compiled on a different CPU (and
hence allowing to be substituted)?
Thanks,
Fede