#10508: Update ATLAS to stable version 3.10
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Reporter: vbraun | Owner: tbd
Type: enhancement | Status:
needs_work
Priority: major | Milestone:
sage-5.3
Component: packages | Resolution:
Keywords: ATLAS | Work issues:
Report Upstream: Reported upstream. No feedback yet. | Reviewers:
Benjamin Jones
Authors: Volker Braun | Merged in:
Dependencies: #13160 | Stopgaps:
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Comment (by vbraun):
The old machines are slow because they are old and because there are no
up-to-date architectural defaults for ancient hardware. None of this can
be fixed by a magic environment variable (except pointing `SAGE_ATLAS_LIB`
to the system atlas libraries). Basically, you can't skip tuning sparc
just because you have i386 archdefs. There is a lot of assembler code that
will be unhappy.
Also, I don't think there is an easy way to know that atlas would take a
long time without actually building it. We could just install a reference
blas on all non-starte-of-the-art machines (say, less than 4 cores and
2GHz). But this will be a major rewrite of how Sage builds its BLAS
libraries.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10508#comment:156>
Sage <http://www.sagemath.org>
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