Bug 695148 - Consider linking against ATLAS instead of bundled cblas
Summary: Consider linking against ATLAS instead of bundled cblas
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: gsl
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Ivana Varekova
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-04-10 22:37 UTC by Susi Lehtola
Modified: 2011-05-10 06:24 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
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Environment:
Last Closed: 2011-05-10 06:24:21 UTC
Type: ---

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Description Susi Lehtola 2011-04-10 22:37:51 UTC 
GSL can use ATLAS for BLAS operations, which usually results in speedups by an order of magnitude.

It seems that bug #560219 was actually caused by the GSL installation being designed in such a way that one can use a platform-specific CBLAS library instead of the bundled reference CBLAS implementation; see

http://www.gnu.org/software/gsl/manual/html_node/Linking-with-an-alternative-BLAS-library.html

I think it would be beneficial to link the GSL library against ATLAS; the necessary link flags for CBLAS functionality are "-L%{_libdir}/atlas -latlas"
Comment 1 Ivana Varekova 2011-05-10 06:24:21 UTC 
Thanks for the report, gsl is linked again atlas blas functions from version gsl-1.15-2.fc16.
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