KSPFlexibleModifyPCFn

A prototype of a function used to modify the preconditioner during the use of flexible KSP methods, such as KSPFGMRES

Synopsis

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode KSPFlexibleModifyPCFn(KSP ksp, PetscInt total_its, PetscInt local_its, PetscReal res_norm, void *ctx);

Calling Sequence

• ksp - the KSP context being used.

• total_its - the total number of iterations that have occurred.

• local_its - the number of iterations since last restart if applicable

• res_norm - the current residual norm

• ctx - optional context variable set with KSPFlexibleSetModifyPC(), KSPPIPEGCRSetModifyPC(), KSPGCRSetModifyPC(), KSPFGMRESSetModifyPC()

See Also

KSP: Linear System Solvers, KSP, KSPFlexibleSetModifyPC(), KSPPIPEGCRSetModifyPC(), KSPGCRSetModifyPC(), KSPFGMRESSetModifyPC()

Level

beginner

Location

include/petscksp.h

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Index of all KSP routines
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Index of all manual pages