petsc-3.11.3 2019-06-26
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DMPlexCreateNeighborCSR

Create a mesh graph (cell-cell adjacency) in parallel CSR format.

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexCreateNeighborCSR(DM dm, PetscInt cellHeight, PetscInt *numVertices, PetscInt **offsets, PetscInt **adjacency)
Collective

Input Arguments

dm - The DMPlex
cellHeight - The height of mesh points to treat as cells (default should be 0)

Output Arguments

numVertices - The number of local vertices in the graph, or cells in the mesh.
offsets - The offset to the adjacency list for each cell
adjacency - The adjacency list for all cells

Note: This is suitable for input to a mesh partitioner like ParMetis.

See Also

DMPlexCreate()

Level

advanced

Location

src/dm/impls/plex/plexpartition.c

Examples

src/ts/examples/tutorials/ex11.c.html

Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages