KSPFGMRESModifyPCKSP

modifies the attributes of the KSPFGMRES preconditioner, see Flexible Krylov Methods.

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPFGMRESModifyPCKSP(KSP ksp, PetscInt total_its, PetscInt loc_its, PetscReal res_norm, void *ctx)

Input Parameters

• ksp - the ksp context being used.

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

• loc_its - the number of KSPFGMRES iterations since last restart.

• res_norm - the current residual norm.

• ctx - context, not used here

Note

You can use this as a template for writing a custom modification callback

See Also

KSP: Linear System Solvers, Flexible Krylov Methods, KSPFGMRES, KSPFGMRESSetModifyPC()

Level

intermediate

Location

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

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Index of all KSP routines
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Index of all manual pages