On Mon, Apr 7, 2008 at 2:27 PM, Randall Mackie <rlmackie862 at gmail.com> 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 at mcs.anl.gov. 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
