[petsc-users] Partitioner in DMPlexDistribute

Matthew Knepley knepley at gmail.com
Fri Apr 4 07:28:53 CDT 2014


On Fri, Apr 4, 2014 at 6:09 AM, Cedric Doucet <cedric.doucet at inria.fr>wrote:

> Hello,
>
> I have just downloaded Petsc 3.4.4 and I have looked at plex.c file.
> In DMPlexDistribute, I cannot see where "partitioner" input argument is
> used.
>
> Is METIS used by default?
>

In 3.4.4, the name is just a placeholder, and  it users Chaco by default,
and then ParMetis.
In master, it does use the name to select the preconditioner. If you use
Plex, I recommend
using master.

  Thanks,

      Matt


> Best regards,
>
> Cédric Doucet
> INRIA Paris-Rocquencourt
> France
>



-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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