#10508: Update ATLAS to version 3.9.x
--------------------------------+-------------------------------------------
Reporter: vbraun | Owner: tbd
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.3
Component: packages | Resolution:
Keywords: ATLAS | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Description changed by vbraun:
Old description:
> Update to the developer release atlas-3.9.x according to advice of Clint
> Whaley. The new atlas release now builds netlib lapack itself, so the
> lapack tarball is now included in `/patches`. The lapack spkg is no
> longer needed and will be removed.
> * Updated to newest upstream source, various patches are no longer
> required
> * `SAGE_ATLAS_LIB=path` now searches in `path/libatlas.so` instead of
> `path/lib/libatlas.so` so it works for people with atlas in `/lib64`,
> too.
> * Threading is now enabled by default
> * Flush before `os.system` (#13210)
>
> Upstream has made some attempt at changing the layout of the shared
> libraries, which is now different from the static libraries. The atlas
> spkg contains a stub autoconf/libtools project that unpacks the static
> libraries and repacks them into equivalent shared libraries.
>
> By default, ATLAS will now try twice to get timings and fail immediately
> if throttling is enabled. If auto-tuning fails build with
> `SAGE_ATLAS_ARCH=fast`, and if that fails with `SAGE_ATLAS_ARCH=base`. On
> x86, the fast and base targets are the new ATLAS generic targets x86SSE3
> and x86SSE2/x86x87.
>
> The current spkg version is at
>
> http://www.stp.dias.ie/~vbraun/Sage/spkg/atlas-3.9.84.spkg
>
> TODO:
> * Setting the Fortran compiler to `sage_fortran` doesn't work
> currently, see
> https://sourceforge.net/tracker/?func=detail&atid=379483&aid=3541376&group_id=23725.
> But as long as you are using gfortran the current spkg works.
New description:
The new atlas release now builds netlib lapack itself, so the lapack
tarball is now included in `/patches`. The lapack spkg is no longer needed
and will be removed.
* Updated to newest upstream source, various patches are no longer
required
* `SAGE_ATLAS_LIB=path` now searches in `path/libatlas.so` instead of
`path/lib/libatlas.so` so it works for people with atlas in `/lib64`, too.
* Threading is now enabled by default
* Flush before `os.system` (#13210)
Upstream has made some attempt at changing the layout of the shared
libraries, which is now different from the static libraries. The atlas
spkg contains a stub autoconf/libtools project that unpacks the static
libraries and repacks them into equivalent shared libraries.
By default, ATLAS will now try twice to get timings and fail immediately
if throttling is enabled. If auto-tuning fails build with
`SAGE_ATLAS_ARCH=fast`, and if that fails with `SAGE_ATLAS_ARCH=base`. On
x86, the fast and base targets are the new ATLAS generic targets x86SSE3
and x86SSE2/x86x87.
The current spkg version is at
http://www.stp.dias.ie/~vbraun/Sage/spkg/atlas-3.9.85.spkg
According to Clint Whaley, this will be identical to the next stable
release unless a bug is found today.
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10508#comment:43>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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