DMDATSSetRHSJacobianLocal#

set a local residual evaluation function for use with DMDA

Synopsis#

#include "petscdmda.h" 
#include "petscts.h" 
PetscErrorCode DMDATSSetRHSJacobianLocal(DM dm, DMDATSRHSJacobianLocal func, void *ctx)

Logically Collective

Input Parameters#

dm - DM to associate callback with
func - local RHS Jacobian evaluation routine
ctx - optional context for local jacobian evaluation

Calling sequence of `func`#

PetscErrorCode func(DMDALocalInfo *info, PetscReal t, void* x, Mat J, Mat B, void *ctx)

info - defines the subdomain to evaluate the residual on
t - time at which to evaluate residual
x - array of local state information
J - Jacobian matrix
B - preconditioner matrix; often same as J
ctx - optional context passed above

See Also#

TS: Scalable ODE and DAE Solvers, DMDA, DMTSSetRHSJacobian(), DMDATSSetRHSFunctionLocal(), DMDASNESSetJacobianLocal()

Level#

beginner

Location#

src/ts/utils/dmdats.c

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