DMDASNESSetFunctionLocal#
set a local residual evaluation function for use with DMDA
Synopsis#
#include "petscdmda.h" 
#include "petscsnes.h" 
PetscErrorCode DMDASNESSetFunctionLocal(DM dm, InsertMode imode, PetscErrorCode (*func)(DMDALocalInfo *info, void *x, void *f, void *ctx), void *ctx)
Logically Collective
Input Parameters#
- dm - - DMto associate callback with
- imode - - INSERT_VALUESif local function computes owned part,- ADD_VALUESif it contributes to ghosted part
- func - local residual evaluation 
- ctx - optional context for local residual evaluation 
Calling sequence of func#
- info - - DMDALocalInfodefining the subdomain to evaluate the residual on
- x - dimensional pointer to state at which to evaluate residual (e.g. PetscScalar *x or **x or ***x) 
- f - dimensional pointer to residual, write the residual here (e.g. PetscScalar *f or **f or ***f) 
- ctx - optional context passed above 
See Also#
SNES: Nonlinear Solvers, DMDA, DMDASNESSetJacobianLocal(), DMSNESSetFunction(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d()
Level#
beginner
Location#
Examples#
src/snes/tutorials/ex25.c
src/snes/tutorials/ex46.c
src/snes/tutorials/ex48.c
src/snes/tutorials/ex15.c
src/snes/tutorials/ex33.c
src/snes/tutorials/ex4.c
src/snes/tutorials/ex19.c
src/snes/tutorials/ex40f90.F90
src/snes/tutorials/ex16.c
src/snes/tutorials/ex30.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages