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Re: error in creating 3d DA
- To: petsc-users@xxxxxxxxxxx
- Subject: Re: error in creating 3d DA
- From: "Matthew Knepley" <knepley@xxxxxxxxx>
- Date: Mon, 7 Apr 2008 15:20:06 -0500
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On Mon, Apr 7, 2008 at 2:27 PM, Randall Mackie <rlmackie862@xxxxxxxxx> wrote:
> I've run into a problem with my code where, for a smaller problem, it
> bombs out in creating a 3D DA (with error message about the partition being
> too fine in the z direction) for the case where np=121, but works fine
> for the case np=484.
>
> I would think that the creation of the DA should work fine for the smaller
> number of processors as well, but maybe there is a bug in the logic?
DA does only the very simplest partitioning. Thus, the number of processors must
factor into np = np_x * np_y * np_z. However, things will be clearer if you send
the actual error message to petsc-maint@xxxxxxxxxxxx
Matt
> Randy
--
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