petsc-3.10.2 2018-10-09
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KSPSetGuess

Set the initial guess object

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPSetGuess(KSP ksp,KSPGuess guess)
Logically Collective on KSP

Input Parameters

ksp - the Krylov context
guess - the object created with KSPGuessCreate()

Notes

this allows a single KSP to be used with several different initial guess generators (likely for different linear solvers, see KSPSetPC()).

This increases the reference count of the guess object, you must destroy the object with KSPGuessDestroy() before the end of the program.

Keywords

KSP, set, options, prefix, database

See Also

KSPSetOptionsPrefix(), KSPAppendOptionsPrefix(), KSPSetUseFischerGuess(), KSPGetGuess()

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