petsc-3.7.7 2017-09-25
   
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