[petsc-users] When is it better to use MUMPS?

Jed Brown jedbrown at mcs.anl.gov
Tue Oct 30 10:47:59 CDT 2012


Simple: it's better when it's faster. Small problems and moderate-size 2D
problems often work well with direct solvers.
On Oct 30, 2012 8:29 AM, "w_ang_temp" <w_ang_temp at 163.com> wrote:

> Hello,
>     As is know, MUMPS is based on a direct method. When the system is big,
> the parallel direct solver is
> not effective compared with the iterative solver. So when is it better to
> use MUMPS?
>     Thanks.
>                                          Jim
>
>
>
>
>
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