petsc-3.14.6 2021-03-30
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PetscPartitionerDMPlexPartition

 Create a non-overlapping partition of the cells in the mesh

Synopsis

#include "petscdmplex.h"   
PetscErrorCode PetscPartitionerDMPlexPartition(PetscPartitioner part, DM dm, PetscSection targetSection, PetscSection partSection, IS *partition)
Collective on PetscPartitioner

Input Parameters

part - The PetscPartitioner
targetSection - The PetscSection describing the absolute weight of each partition (can be NULL)
dm - The mesh DM

Output Parameters

partSection - The PetscSection giving the division of points by partition
partition - The list of points by partition

Notes

If the DM has a local section associated, each point to be partitioned will be weighted by the total number of dofs identified by the section in the transitive closure of the point.

See Also

DMPlexDistribute(), PetscPartitionerCreate(), PetscSectionCreate(), PetscSectionSetChart(), PetscPartitionerPartition()

Level

developer

Location

src/dm/impls/plex/plexpartition.c
Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages