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

KSP: Linear System Solvers, 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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