petsc-3.7.5 2017-01-01

KSPSetFischerGuess

Use the Paul Fischer algorithm created by KSPFischerGuessCreate()

#include "petscksp.h" 
PetscErrorCode  KSPSetFischerGuess(KSP ksp,KSPFischerGuess guess)

Logically Collective on KSP

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

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 KSPFischerGuessDestroy() before the end of the program.

KSP, set, options, prefix, database