DMRefine#

Refines a DM object using a standard nonadaptive refinement of the underlying mesh

Synopsis#

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

Collective

Input Parameters#

  • dm - the DM object

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

Output Parameter#

  • dmf - the refined DM, or NULL

Options Database Key#

  • -dm_plex_cell_refiner - chooses the refinement strategy, e.g. regular, tohex

Note#

If no refinement was done, the return value is NULL

See Also#

DM Basics, DM, DMCoarsen(), DMDestroy(), DMView(), DMCreateGlobalVector(), DMCreateInterpolation()

Level#

developer

Location#

src/dm/interface/dm.c

Examples#

src/dm/impls/plex/tutorials/ex11.c
src/snes/tutorials/ex56.c
src/ksp/ksp/tutorials/ex35.cxx
src/ksp/ksp/tutorials/ex36.cxx
src/dm/tutorials/ex3.c
src/ksp/ksp/tutorials/ex73.c
src/ksp/ksp/tutorials/ex65.c

Implementations#

DMRefine_Composite() in src/dm/impls/composite/pack.c
DMRefine_DA() in src/dm/impls/da/da.c
DMRefine_Forest() in src/dm/impls/forest/forest.c
DMRefine_Moab() in src/dm/impls/moab/dmmbmg.cxx
DMRefine_Plex() in src/dm/impls/plex/plexrefine.c
DMRefine_Redundant() in src/dm/impls/redundant/dmredundant.c
DMRefine_Stag() in src/dm/impls/stag/stag.c

Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages