MatCoarsenSetStrengthIndex#
Index array to use for index to use for strength of connection
Synopsis#
#include "petscmat.h"
PetscErrorCode MatCoarsenSetStrengthIndex(MatCoarsen coarse, PetscInt n, PetscInt idx[])
Logically Collective
Input Parameters#
coarse - the coarsen context
n - number of indices
idx - array of indices
Options Database Key#
-mat_coarsen_strength_index - array of subset of variables per vertex to use for strength norm, -1 for using all (default)
Note#
When the coarsening is used inside PCGAMG then the options database keys are prefixed with -pc_gamg_
See Also#
MatCoarsen, MatCoarsenType, MatCoarsenApply(), MatCoarsenCreate(), MatCoarsenSetType()
Level#
intermediate
Location#
src/mat/graphops/coarsen/interface/coarsen.c
Index of all MatGraphOperations routines
Table of Contents for all manual pages
Index of all manual pages