DMPlexMatGetClosureIndicesRefined

Compute the fine-row and coarse-column global indices associated with the refined closure of a coarse point

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexMatGetClosureIndicesRefined(DM dmf, PetscSection fsection, PetscSection globalFSection, DM dmc, PetscSection csection, PetscSection globalCSection, PetscInt point, PetscInt cindices[], PetscInt findices[])

Not Collective

Input Parameters

• dmf - The fine DMPLEX

• fsection - The fine local PetscSection, or NULL to use DMGetLocalSection(dmf, ...)

• globalFSection - The fine global PetscSection, or NULL to use DMGetGlobalSection(dmf, ...)

• dmc - The coarse DMPLEX

• csection - The coarse local PetscSection, or NULL to use DMGetLocalSection(dmc, ...)

• globalCSection - The coarse global PetscSection, or NULL to use DMGetGlobalSection(dmc, ...)

• point - The coarse-mesh point

Output Parameters

• cindices - Global column indices for the coarse closure (caller-provided buffer of the correct size)

• findices - Global row indices for the fine closure across all subcells produced by uniformly refining point

Note

This companion to DMPlexMatSetClosureRefined() returns the index sets without inserting values, allowing callers to build sparsity patterns or perform their own MatSetValues() calls.

See Also

DMPlex: Unstructured Grids, DM, DMPLEX, DMPlexMatSetClosureRefined(), DMPlexGetClosureIndices(), DMPlexTransformCellTransform()

Level

developer

Location

src/dm/impls/plex/plex.c

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Index of all DMPlex routines
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