petsc-3.7.5 2017-01-01
Report Typos and Errors

# 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