DMCreateMassMatrixLumped#

Gets the lumped mass matrix for a given DM

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMCreateMassMatrixLumped(DM dm, Vec *lm)

Collective

Input Parameter#

  • dm - the DM object

Output Parameter#

  • lm - the lumped mass matrix, which is a diagonal matrix, represented as a vector

Note#

See DMCreateMassMatrix() for how to create the non-lumped version of the mass matrix.

See Also#

DM Basics, DM, DMCreateMassMatrix(), DMCreateMatrix(), DMCreateMassMatrix(), DMRefine(), DMCoarsen(), DMCreateRestriction(), DMCreateInterpolation(), DMCreateInjection()

Level#

developer

Location#

src/dm/interface/dm.c

Implementations#

DMCreateMassMatrixLumped_Plex in src/dm/impls/plex/plex.c

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