KSPFlexibleSetModifyPC

Sets the routine used by flexible KSP methods to modify the preconditioner. Flexible Krylov Methods

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPFlexibleSetModifyPC(KSP ksp, KSPFlexibleModifyPCFn *fcn, PetscCtx ctx, PetscCtxDestroyFn *destroy)

Logically Collective

Input Parameters

• ksp - iterative context obtained from KSPCreate()

• fcn - function to modify the PC, see KSPFlexibleModifyPCFn

• ctx - optional context

• destroy - optional context destroy routine

Note

Several fcn routines are predefined, including KSPFlexibleModifyPCNoChange() and KSPFlexibleModifyPCKSP()

See Also

KSP: Linear System Solvers, Flexible Krylov Methods, KSPFGMRES, KSPFCG, KSPPIPEFCG, KSPGCR, KSPPIPEGCR, KSPFlexibleModifyPCFn, KSPFlexibleModifyPCNoChange(), KSPFlexibleModifyPCKSP()

Level

intermediate

Location

src/ksp/ksp/impls/gmres/fgmres/modpcf.c

Implementations

KSPFlexibleSetModifyPC_GCR() in src/ksp/ksp/impls/gcr/gcr.c
KSPFlexibleSetModifyPC_PIPEGCR() in src/ksp/ksp/impls/gcr/pipegcr/pipegcr.c
KSPFlexibleSetModifyPC_FGMRES() in src/ksp/ksp/impls/gmres/fgmres/fgmres.c

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