DMDASetPreallocationCenterDimension#
Determine the topology used to determine adjacency
Synopsis#
#include "petscdmda.h"   
PetscErrorCode DMDASetPreallocationCenterDimension(DM dm, PetscInt preallocCenterDim)
Input Parameters#
- dm - The - DMDAobject
- preallocCenterDim - The dimension of points which connect adjacent entries 
Notes#
     FEM:   Two points p and q are adjacent if q \in closure(star(p)), preallocCenterDim = dim
     FVM:   Two points p and q are adjacent if q \in star(cone(p)),    preallocCenterDim = dim-1
     FVM++: Two points p and q are adjacent if q \in star(closure(p)), preallocCenterDim = 0
See Also#
DMDA - Creating vectors for structured grids, DM, DMDA, DMCreateMatrix(), DMDAPreallocateOperator()
Level#
developer
Location#
src/dm/impls/da/dapreallocate.c
Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages