petsc-3.7.5 2017-01-01
KSPSetUseFischerGuess
Use the Paul Fischer algorithm, see KSPFischerGuessCreate()
Synopsis
#include "petscksp.h"
PetscErrorCode KSPSetUseFischerGuess(KSP ksp,PetscInt model,PetscInt size)
Logically Collective on KSP
Input Parameters
| ksp | - the Krylov context
|
| model | - use model 1, model 2 or 0 to turn it off
|
| size | - size of subspace used to generate initial guess
|
Options Database
-ksp_fischer_guess <model,size> -uses the Fischer initial guess generator for repeated linear solves
Keywords
KSP, set, options, prefix, database
See Also
KSPSetOptionsPrefix(), KSPAppendOptionsPrefix(), KSPSetUseFischerGuess(), KSPSetFischerGuess(), KSPGetFischerInitialGuess()
Level:advanced
Location:src/ksp/ksp/interface/itcl.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages