DMPlexGetAdjacency#
Return all points adjacent to the given point
Synopsis#
#include "petscdmplex.h"
#include "petscdmlabel.h"
PetscErrorCode DMPlexGetAdjacency(DM dm, PetscInt p, PetscInt *adjSize, PetscInt *adj[])
Input Parameters#
dm - The DM object
p - The point
Input/Output Parameters#
adjSize - The maximum size of adj if it is non-NULL, or PETSC_DETERMINE; on output the number of adjacent points
adj - Either NULL so that the array is allocated, or an existing array with size adjSize; on output contains the adjacent points
Notes#
The user must PetscFree the adj array if it was not passed in.
See Also#
DMSetAdjacency()
, DMPlexDistribute()
, DMCreateMatrix()
, DMPlexPreallocateOperator()
Level#
advanced
Location#
Implementations#
DMPlexGetAdjacency_Internal in src/dm/impls/plex/plexdistribute.c
Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages