DMTSGetIJacobianLocal

get a local Jacobian evaluation function

Synopsis

#include "petscts.h" 
PetscErrorCode DMTSGetIJacobianLocal(DM dm, PetscErrorCode (**func)(DM dm, PetscReal t, Vec u, Vec udot, PetscReal shift, Mat J, Mat Jpre, PetscCtx ctx), PetscCtxRt ctx)

Logically Collective

Input Parameter

• dm - DM to associate callback with

Output Parameters

• func - local Jacobian evaluation

• ctx - optional context for local Jacobian evaluation

Calling sequence of func

• dm - the DM

• t - the current time

• u - the current solution

• udot - the derivative of u

• shift - the shift factoring arising from the implicit time-step

• J - output, the Jacobian

• Jpre - output, matrix from which to compute the preconditioner for J, often the same as J

• ctx - the application context for the function

See Also

TS: Scalable ODE and DAE Solvers, DM, DMTSSetIJacobianLocal(), DMTSSetIFunctionLocal(), DMTSSetIJacobian(), DMTSSetIFunction()

Level

beginner

Location

src/ts/utils/dmlocalts.c

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