PCHMGSetReuseInterpolation

Reuse the interpolation matrices in PCHMG after changing the matrices numerical values

Synopsis

#include "petscpc.h" 
PetscErrorCode PCHMGSetReuseInterpolation(PC pc, PetscBool reuse)

Logically Collective

Input Parameters

• pc - the PCHMG context

• reuse - PETSC_TRUE indicates that PCHMG will reuse the interpolations

Options Database Key

• -pc_hmg_reuse_interpolation <true | false> - Whether or not to reuse the interpolations. If true, it potentially save the compute time.

See Also

KSP: Linear System Solvers, PCHMG, PCGAMG, PCHMGSetUseSubspaceCoarsening(), PCHMGSetCoarseningComponent(), PCHMGSetInnerPCType()

Level

beginner

Location

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

Examples

src/ksp/ksp/tutorials/ex4.c

Implementations

PCHMGSetReuseInterpolation_HMG() in src/ksp/pc/impls/hmg/hmg.c

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