PETSc version 3.15.5
DMDASNESSetPicardLocal
set a local right hand side and matrix evaluation function for Picard iteration 
Synopsis
#include "petscdmda.h" 
#include "petscsnes.h" 
PetscErrorCode DMDASNESSetPicardLocal(DM dm,InsertMode imode,PetscErrorCode (*func)(DMDALocalInfo*,void*,void*,void*),
                                      PetscErrorCode (*jac)(DMDALocalInfo*,void*,Mat,Mat,void*),void *ctx)
Logically Collective
Input Arguments
|  | dm | - DM to associate callback with | 
|  | imode | - INSERT_VALUES if local function computes owned part, ADD_VALUES if it contributes to ghosted part | 
|  | func | - local residual evaluation | 
|  | ctx | - optional context for local residual evaluation | 
Calling sequence for func
|  | info | - DMDALocalInfo defining the subdomain to evaluate the residual on | 
|  | x | - dimensional pointer to state at which to evaluate residual | 
|  | f | - dimensional pointer to residual, write the residual here | 
|  | ctx | - optional context passed above | 
Notes
The user must use
ierr = SNESSetFunction(snes,NULL,SNESPicardComputeFunction,&user);CHKERRQ(ierr);
in their code before calling this routine.
See Also
 DMSNESSetFunction(), DMDASNESSetJacobian(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d()
Level
beginner
Location
src/snes/utils/dmdasnes.c
Examples
src/snes/tutorials/ex15.c.html
Index of all SNES routines
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Index of all manual pages