Enable multi-thread support for atlas in ubuntu packages for multicore architectures
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
atlas (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
It would be very appreciated if the atlas packages shipped in ubuntu by default could provide a variant to leverage multi-core architectures such as the core2 by enabling the multi-threading build option.
The upstream debian package seems to have a core2sse3 variant that might provide this (although I have no debian install at hand to check).
In the mean time ubuntu users that want to leverage multi cores for linear algebra are required to build atlas from source manually or install a non free alternative such as the MKL.
Description: Ubuntu 10.04 LTS
Release: 10.04
libatlas3gf-sse2:
Installed: 3.6.0-24ubuntu1
Candidate: 3.6.0-24ubuntu1
Version table:
*** 3.6.0-24ubuntu1 0
500 http://
100 /var/lib/
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libatlas3gf-sse2 3.6.0-24ubuntu1
ProcVersionSign
Uname: Linux 2.6.32-23-generic i686
NonfreeKernelMo
Architecture: i386
Date: Mon Jul 12 13:59:55 2010
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/zsh
SourcePackage: atlas
This is the case since 3.8.3-27 in Debian.
Note that Atlas will use two threads since it is set up at build time.
The best way to have all cores used is to build yourself atlas on the machine .