DMPlexTSComputeIJacobianFEM

Form the Jacobian Jac from the local input locX using pointwise functions specified by the user

Synopsis

#include "petscdmplex.h" 
#include "petscts.h" 
PetscErrorCode DMPlexTSComputeIJacobianFEM(DM dm, PetscReal time, Vec locX, Vec locX_t, PetscReal X_tShift, Mat Jac, Mat JacP, void *user)

Input Parameters

• dm - The mesh

• time - The time

• locX - Local solution

• locX_t - Local solution time derivative, or NULL

• X_tShift - The multiplicative parameter for dF/du_t

• user - The user context

Output Parameters

• Jac - the Jacobian

• JacP - an additional approximation for the Jacobian to be used to compute the preconditioner (often is Jac)

See Also

TS: Scalable ODE and DAE Solvers, TS, DM, DMPlexTSComputeIFunctionFEM(), DMPlexTSComputeRHSFunctionFEM()

Level

developer

Location

src/ts/utils/dmplexts.c

Examples

src/ts/tutorials/ex53.c
src/ts/tutorials/ex18.c
src/ts/tutorials/ex47.c
src/ts/tutorials/ex30.c
src/ts/tutorials/ex48.c
src/ts/tutorials/ex76.c
src/ts/tutorials/ex45.c
src/ts/tutorials/ex77.c
src/ts/tutorials/ex46.c

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Index of all TS routines
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