PCHMGSetUseSubspaceCoarsening#
Use subspace coarsening in PCHMG
Synopsis#
#include "petscpc.h"
PetscErrorCode PCHMGSetUseSubspaceCoarsening(PC pc, PetscBool subspace)
Logically Collective
Input Parameters#
pc - the
PCHMGcontextsubspace -
PETSC_TRUEindicates thatPCHMGwill use the subspace coarsening
Options Database Key#
-pc_hmg_use_subspace_coarsening <true | false> - Whether or not to use subspace coarsening (that is, coarsen a submatrix).
See Also#
KSP: Linear System Solvers, PCHMG, PCHMGSetReuseInterpolation(), PCHMGSetCoarseningComponent(), PCHMGSetInnerPCType()
Level#
beginner
Location#
Examples#
Implementations#
PCHMGSetUseSubspaceCoarsening_HMG() in src/ksp/pc/impls/hmg/hmg.c
Index of all PC routines
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Index of all manual pages