[petsc-users] Very poor speed up performance

[Yongjun Chen]

Satish, many thanks for your advice!


On Mon, Dec 20, 2010 at 11:04 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> On Mon, 20 Dec 2010, Yongjun Chen wrote:
>
> > Matt, Barry, thanks a lot for your reply! I will try mpich hydra firstly
> and
> > see what I can get.
>
> hydra is just the process manager.
>
> Also --download-mpich uses a slightly older version - with
> device=ch3:sock for portability and valgrind reasons [development]
>
> You might want to install latest mpich manually with the defaut
> device=ch3:nemsis and recheck..
>
> satish
>
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