DMCoarsen

Coarsens a DM object using a standard, non-adaptive coarsening of the underlying mesh

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMCoarsen(DM dm, MPI_Comm comm, DM *dmc)

Collective

Input Parameters

• dm - the DM object

• comm - the communicator to contain the new DM object (or MPI_COMM_NULL)

Output Parameter

• dmc - the coarsened DM

See Also

DM Basics, DM, DMRefine(), DMDestroy(), DMView(), DMCreateGlobalVector(), DMCreateInterpolation(), DMCreateDomainDecomposition(), DMCoarsenHookAdd(), DMCoarsenHookRemove()

Level

developer

Location

src/dm/interface/dm.c

Examples

src/ksp/ksp/tutorials/ex65.c
src/dm/impls/stag/tutorials/ex4.c

Implementations

DMCoarsen_Composite() in src/dm/impls/composite/pack.c
DMCoarsen_DA() in src/dm/impls/da/da.c
DMCoarsen_Forest() in src/dm/impls/forest/forest.c
DMCoarsen_Moab() in src/dm/impls/moab/dmmbmg.cxx
DMCoarsen_Plex() in src/dm/impls/plex/plexcoarsen.c
DMCoarsen_Redundant() in src/dm/impls/redundant/dmredundant.c
DMCoarsen_Stag() in src/dm/impls/stag/stag.c
DMCoarsen_SNESVI() in src/snes/impls/vi/rs/virs.c

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Index of all DM routines
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Index of all manual pages