DMPlexComputeMassMatrixNested — PETSc 3.25.4 documentation

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# DMPlexComputeMassMatrixNested

Form the local portion of the mass matrix from a coarse `DM` to a nested fine `DM`.

## Synopsis

    #include "petscdmplex.h"
    PetscErrorCode DMPlexComputeMassMatrixNested(DM dmc, DM dmf, Mat mass, PetscCtx ctx)

Collective

## Input Parameters

- dmc - the coarse mesh

- dmf - the fine mesh

- ctx - the application context

## Output Parameter

- mass - the mass matrix

## Note

This routine is not implemented and currently raises `PETSC_ERR_SUP`.

## See Also

DMPlex: Unstructured Grids, `DM`, `DMPLEX`, `DMPlexComputeMassMatrixGeneral()`, `DMPlexComputeInterpolatorNested()`

## Level

developer

## Location

src/dm/impls/plex/plexfem.c

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