petsc-3.14.6 2021-03-30
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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