petsc-3.13.6 2020-09-29
DMForestGetBaseDM
Get the base DM of a DMForest forest. The forest will be hierarchically refined from the base, and all refinements/coarsenings of the forest will share its base. In general, two forest must share a base to be comparable, to do things like construct interpolators.
Synopsis
#include "petscdmforest.h"
#include "petscdm.h"
#include "petscdmlabel.h"
PetscErrorCode DMForestGetBaseDM(DM dm, DM *base)
Not collective
Input Parameter
dm -the forest
Output Parameter
base -the base DM of the forest
Notes
After DMSetUp(), the base DM will be redundantly distributed across MPI processes
See Also
DMForestSetBaseDM()
Level
intermediate
Location
src/dm/impls/forest/forest.c
Index of all DMFOREST routines
Table of Contents for all manual pages
Index of all manual pages