PCHMGSetCoarseningComponent#

Set which component of the PDE is used for the subspace-based coarsening algorithm

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCHMGSetCoarseningComponent(PC pc, PetscInt component)

Logically Collective

Input Parameters#

  • pc - the PCHMG context

  • component - which component PC will coarsen

Options Database Key#

  • -pc_hmg_coarsening_component - Which component is chosen for the subspace-based coarsening algorithm

See Also#

PCHMG, PCType, PCGAMG, PCHMGSetReuseInterpolation(), PCHMGSetUseSubspaceCoarsening(), PCHMGSetInnerPCType()

Level#

beginner

Location#

src/ksp/pc/impls/hmg/hmg.c

Examples#

src/ksp/ksp/tutorials/ex4.c

Implementations#

PCHMGSetCoarseningComponent_HMG in src/ksp/pc/impls/hmg/hmg.c

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