KSPCR with PCILU generally slower with v2.3.3 than with 2.3.0

Lisandro Dalcin dalcinl at gmail.com
Thu Jun 5 10:39:20 CDT 2008


On 6/5/08, Etienne PERCHAT <etienne.perchat at transvalor.com> wrote:
>  The behavior is not very clear: v2.3.3p8 is generally slower (10 % or
>  more) but on some systems it happen to be really faster (may be 40 %).

Which compilers are you using in your different systems? If they are
the same, Are their versions the same? I've noticed surprising
differences for different versions of GCC in builtin PETSc
factorization routines, more specifically LU.


-- 
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
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