PETSc lib performance tuning

abdul-rahman at abdul-rahman at
Fri Feb 24 07:14:31 CST 2006

Hi all,

I have a couple questions about the PETSc performance:

Does having ATLAS ( ) help ? If so how do I
hook it to PETSc ?

How do I best customize the compiler flags? Should I edit the
variables directly in petscconf, or can I do it with configure ?



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