MatCoarsenSetFromOptions

Sets various coarsen options from the options database.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatCoarsenSetFromOptions(MatCoarsen coarser)

Collective

Input Parameter

• coarser - the coarsen context.

Options Database Key

• -mat_coarsen_type - mis: maximal independent set based; misk: distance k MIS; hem: heavy edge matching

• -mat_coarsen_max_it number of iterations to use in the coarsening process - see MatCoarsenSetMaximumIterations()

Notes

When the coarsening is used inside PCGAMG then the options database keys are prefixed with -pc_gamg_

Sets the MatCoarsenType to MATCOARSENMISK if has not been set previously

See Also

MatCoarsen, MatCoarsenType, MatCoarsenApply(), MatCoarsenCreate(), MatCoarsenSetType(), MatCoarsenSetMaximumIterations()

Level

advanced

Location

src/mat/graphops/coarsen/interface/coarsen.c

Implementations

MatCoarsenSetFromOptions_MISK() in src/mat/graphops/coarsen/impls/misk/misk.c

---

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