petsc-3.10.2 2018-10-09
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KSPGuessFischerSetModel

Use the Paul Fischer algorithm

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPGuessFischerSetModel(KSPGuess guess,PetscInt model,PetscInt size)
Logically Collective on KSP

Input Parameters

guess - the initial guess context
model - use model 1, model 2 or any other number to turn it off
size - size of subspace used to generate initial guess

Options Database

-ksp_guess_fischer_model <model,size> -uses the Fischer initial guess generator for repeated linear solves

Keywords

set, options, prefix, database

See Also

KSPGuess, KSPGuessCreate(), KSPSetUseFischerGuess(), KSPSetGuess(), KSPGetGuess(), KSP

Level

advanced

Location

src/ksp/ksp/guess/impls/fischer/fischer.c

Implementations

KSPGuessFischerSetModel_Fischer in src/ksp/ksp/guess/impls/fischer/fischer.c

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