SNESSetInitialFunction#
Set an already computed function evaluation at the initial guess to be reused by SNESSolve().
Synopsis#
#include "petscsnes.h"  
PetscErrorCode SNESSetInitialFunction(SNES snes, Vec f)
Logically Collective
Input Parameters#
- snes - the - SNEScontext
- f - vector to store function value 
Notes#
This should not be modified during the solution procedure.
This is used extensively in the SNESFAS hierarchy and in nonlinear preconditioning.
See Also#
SNES: Nonlinear Solvers, SNES, SNESFAS, SNESSetFunction(), SNESComputeFunction(), SNESSetInitialFunctionNorm()
Level#
developer
Location#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages