Upgrade ATLAS to version 3.11.38

[jdemeyer]

Recent versions support the Power8 ppc64le architecture.

Tarball: http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2 (generated by spkg-src)

Due to scipy/scipy#5266, we need to use LAPACK 3.5.0 and not LAPACK 3.6.0.

Upstream bugs:

• https://sourceforge.net/p/math-atlas/support-requests/1011
• https://sourceforge.net/p/math-atlas/support-requests/1014
• https://sourceforge.net/p/math-atlas/support-requests/1016

Random failures:

• https://sourceforge.net/p/math-atlas/support-requests/1013

Upstream: Reported upstream. Developers acknowledge bug.

CC: @vbraun @jpflori @nexttime @dimpase @jhpalmieri

Component: packages: standard

Keywords: BLAS, LAPACK, --with-blas

Branch/Commit: u/jdemeyer/upgrade_atlas @ c19635f

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/19719

[kiwifb]

comment:1

You need to update to a more recent ATLAS (3.11.something), upstream worked hard to make it build on power8 relatively recently.

[kiwifb]

comment:2

From the horse's mouth: http://ehc.ac/p/math-atlas/mailman/message/34330714/

[jdemeyer]

comment:3

Thanks for the info, I will check it out.

So far, I managed to build all packages except ATLAS and packages depending on it.

[jdemeyer]

Author: Jeroen Demeyer

[jdemeyer]

Description changed:

--- 
+++ 
@@ -1 +1,3 @@
-ATLAS plainly refuses to build on a `ppc64le` system.
+Recent versions support the Power8 ppc64le architecture.
+
+**Tarball**: [http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2](http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2) (renamed from upstream's `atlas3.11.38.tar.bz2` without dash)

[jdemeyer]

Description changed:

--- 
+++ 
@@ -1,3 +1,3 @@
 Recent versions support the Power8 ppc64le architecture.
 
-**Tarball**: [http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2](http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2) (renamed from upstream's `atlas3.11.38.tar.bz2` without dash)
+**Tarball**: [http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2](http://sage.ugent.be/www/jdemeyer/sage/atlas-3.11.38.tar.bz2) (generated by `spkg-src`)

[jdemeyer]

Branch: u/jdemeyer/upgrade_atlas

[jdemeyer]

comment:7

Can anyone get this branch working? On my Linux Core i7 system, I get

./xgmmsearch -p s -f 4
xgmmsearch: /usr/local/src/sage-config/local/var/tmp/sage/build/atlas-3.11.38/src/ATLAS-build/../ATLAS//tune/blas/gemm/gmmsearch.c:233: FullSrchMUNU: Assertion `mfB > 0
.0' failed.
TIMING BCAST VS SPLAT MVEC WITH: B=(120,120,120) U=(2,4,1)
   BCAST = -nan MFLOP
   SPLAT = -nan MFLOP
VBCAST PROVIDES -nan SPEEDUP
Full search on MUxNU for nb=120, NREG=16, VLEN=4, KVEC=0
   MU= 1, NU= 1, MFLOP=-nan
   MU= 1, NU= 2, MFLOP=-nan
   MU= 1, NU= 3, MFLOP=-nan
   MU= 1, NU= 4, MFLOP=-nan
   MU= 1, NU= 5, MFLOP=-nan
[...]
Makefile:445: recipe for target 'res/snreg' failed
make[6]: *** [res/snreg] Aborted
[...]
ERROR 539 DURING CACHESIZE SEARCH!!.  CHECK INSTALL_LOG/Stage1.log FOR DETAILS.
[...]

---

New commits:

2b458de

Upgrade ATLAS to version 3.11.38

[jdemeyer]

Commit: 2b458de

[kiwifb]

comment:8

Haven't tried the branch yet but I have built it from ebuild on my machine. That being said my first attempt failed in the same way at the exact same point.

It got past once I set the ebuild to use threads which would have added -t -1 -Si omp 0 to the build options. I also had --use-ifko enabled, it took ~3h30mn to build on my 12 cores machine.

[jdemeyer]

comment:9

Replying to @kiwifb:

Haven't tried the branch yet but I have built it from ebuild on my machine.

Do you know exactly which version that was?