petsc-3.14.6 2021-03-30
SNESSetUpdate
Sets the general-purpose update function called at the beginning of every iteration of the nonlinear solve. Specifically it is called just before the Jacobian is "evaluated".
Synopsis
#include "petscsnes.h"
PetscErrorCode SNESSetUpdate(SNES snes, PetscErrorCode (*func)(SNES, PetscInt))
Logically Collective on SNES
Input Parameters
| snes | - The nonlinear solver context
|
| func | - The function
|
Calling sequence of func
func (SNES snes, PetscInt step);
| step | - The current step of the iteration
|
Note: This is NOT what one uses to update the ghost points before a function evaluation, that should be done at the beginning of your FormFunction()
This is not used by most users.
See Also
SNESSetJacobian(), SNESSolve()
Level
advanced
Location
src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages