DMDASNESSetPicardLocal

set a local right-hand side and matrix evaluation function for Picard iteration with DMDA

Synopsis

#include "petscdmda.h" 
#include "petscsnes.h" 
PetscErrorCode DMDASNESSetPicardLocal(DM dm, InsertMode imode, DMDASNESFunctionFn *func, DMDASNESJacobianFn *jac, PetscCtx ctx)

Logically Collective

Input Parameters

• 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

• jac - function to compute Jacobian

• ctx - optional context for local residual evaluation

Note

The user must use SNESSetFunction(snes,NULL,SNESPicardComputeFunction,&user)); in their code before calling this routine.

See Also

SNES: Nonlinear Solvers, SNES, DMDA, DMDASNESFunctionFn, DMDASNESJacobianFn, DMSNESSetFunction(), DMDASNESSetJacobian(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d()

Level

beginner

Location

src/snes/utils/dmdasnes.c

Examples

src/snes/tutorials/ex15.c

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