[petsc-users] PETSC3.2 and MUMPS 4.10.0 slower than PETSC3.1 and MUMPS 4.9.2

[John Fettig]

My experience is that PETSc 3.3 with MUMPS 4.10.0 is faster than
either of these, so I think you should try updating.

John

On Fri, Jun 22, 2012 at 7:52 AM, Andreas Hauffe
<andreas.hauffe at tu-dresden.de> wrote:
> Hi,
>
> during a timing test I noticed that PETSC3.2/MUMPS4.10.0 takes twice the time
> to solve a linear system compared to PETSC3.1/MUMPS4.9.2. In both cases I use
> the same configure options to compile PETSC and the MUMPS was downloaded
> during the compilation of PETSC. Did someone else get such a difference for
> the calculation time or can someone tell me what happens?
>
> --
> Best regards
> Andreas Hauffe
> Leiter der Arbeitsgruppe "Auslegungsmethoden für Luftfahrzeuge"
>
> ----------------------------------------------------------------------------------------------------
> Technische Universität Dresden
> Institut für Luft- und Raumfahrttechnik / Institute of Aerospace Engineering
> Lehrstuhl für Luftfahrzeugtechnik / Chair of Aircraft Engineering
>
> D-01062 Dresden
> Germany
>
> phone : +49 (351) 463 38496
> fax :  +49 (351) 463 37263
> mail : andreas.hauffe at tu-dresden.de
> Website : http://tu-dresden.de/mw/ilr/lft
> ----------------------------------------------------------------------------------------------------