PETSc lib performance tuning

[Satish Balay]

On Fri, 24 Feb 2006, abdul-rahman at tu-harburg.de wrote:

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

To compile with optimizationflags - you can use the following
configure options:

--with-debugging=0 COPTFLAGS=-O3 FOPTFLAGS=-O3 CXXOPTFLAGS=-O3

etc..

Satish