petsc-3.10.5 2019-03-28

DMPlexDistribute

Distributes the mesh and any associated sections.

Synopsis

#include "petscdmplex.h"   
#include "petscdmlabel.h"  
PetscErrorCode DMPlexDistribute(DM dm, PetscInt overlap, PetscSF *sf, DM *dmParallel)

Collective on DM

Input Parameter

	dm	- The original DMPlex object
	overlap	- The overlap of partitions, 0 is the default

Output Parameter

	sf	- The PetscSF used for point distribution, or NULL if not needed
	dmParallel	- The distributed DMPlex object

Note: If the mesh was not distributed, the output dmParallel will be NULL.

The user can control the definition of adjacency for the mesh using DMPlexSetAdjacencyUseCone() and DMPlexSetAdjacencyUseClosure(). They should choose the combination appropriate for the function representation on the mesh.

Keywords

mesh, elements

Level

intermediate

Location

src/dm/impls/plex/plexdistribute.c

Examples