petsc-dev 2014-07-21
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

See Also

DMCreateMatrix(), DMDAPreallocateOperator()

Level:developer
Location:
src/dm/impls/da/dapreallocate.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages