petsc-3.11.4 2019-09-28

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DMCreateMassMatrix

Gets mass matrix between two DM objects, M_ij = \int \phi_i \psi_j

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMCreateMassMatrix(DM dm1, DM dm2, Mat *mat)

Collective on DM

Input Parameter

	dm1	- the DM object
	dm2	- the second, finer DM object

Output Parameter

mat -the interpolation

See Also

DMCreateMatrix(), DMRefine(), DMCoarsen(), DMCreateRestriction(), DMCreateInterpolation(), DMCreateInjection()

Level

developer

Location

src/dm/interface/dm.c

Implementations

DMCreateMassMatrix_Plex in src/dm/impls/plex/plex.c
DMCreateMassMatrix_Swarm in src/dm/impls/swarm/swarm.c

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