Bug 695148

Summary:	Consider linking against ATLAS instead of bundled cblas
Product:	[Fedora] Fedora	Reporter:	Susi Lehtola <susi.lehtola>
Component:	gsl	Assignee:	Ivana Varekova <varekova>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	varekova
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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.