petsc-3.14.6 2021-03-30
DMDASetPreallocationCenterDimension
Determine the topology used to determine adjacency
Synopsis
#include "petscdmda.h"
PetscErrorCode DMDASetPreallocationCenterDimension(DM dm, PetscInt preallocCenterDim)
Input Parameters
| dm | - The DM object
|
| 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
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