DMDASNESSetJacobianLocalVec

set a local Jacobian evaluation function that operates on a local vector with DMDA

Synopsis

#include "petscdmda.h" 
#include "petscsnes.h" 
PetscErrorCode DMDASNESSetJacobianLocalVec(DM dm, PetscErrorCode (*func)(DMDALocalInfo *info, Vec x, Mat J, Mat M, void *), void *ctx)

Logically Collective

Input Parameters

• dm - DM to associate callback with

• func - local Jacobian evaluation

• ctx - optional context for local Jacobian evaluation

Calling sequence of func

• info - DMDALocalInfo defining the subdomain to evaluate the Jacobian at

• x - state vector at which to evaluate Jacobian

• J - the Jacobian

• M - approximate Jacobian from which the preconditioner will be computed, often J

• ctx - optional context passed above

See Also

SNES: Nonlinear Solvers, DMDA, DMDASNESSetJacobianLocal(), DMDASNESSetFunctionLocalVec(), DMSNESSetJacobian(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d()

Level

beginner

Location

src/snes/utils/dmdasnes.c

Examples

src/snes/tutorials/ex55.c

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