petsc-3.13.6 2020-09-29

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DMRefine

Refines a DM object

Synopsis

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

Collective on dm

Input Parameter

	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 Dtabase Keys

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

Note: If no refinement was done, the return value is NULL

See Also

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

Level

developer

Location

src/dm/interface/dm.c

Examples

src/dm/tutorials/ex3.c.html
src/ksp/ksp/tutorials/ex65.c.html
src/ksp/ksp/tutorials/ex73.c.html
src/snes/tutorials/ex12.c.html
src/snes/tutorials/ex62.c.html
src/snes/tutorials/ex77.c.html

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

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