petsc-3.14.6 2021-03-30
TSComputeRHSJacobian
Computes the Jacobian matrix that has been set with TSSetRHSJacobian().
Synopsis
#include "petscts.h"
PetscErrorCode TSComputeRHSJacobian(TS ts,PetscReal t,Vec U,Mat A,Mat B)
Collective on TS
Input Parameters
| ts | - the TS context
|
| t | - current timestep
|
| U | - input vector
|
Output Parameters
| A | - Jacobian matrix
|
| B | - optional preconditioning matrix
|
| flag | - flag indicating matrix structure
|
Notes
Most users should not need to explicitly call this routine, as it
is used internally within the nonlinear solvers.
See KSPSetOperators() for important information about setting the
flag parameter.
See Also
TSSetRHSJacobian(), KSPSetOperators()
Level
developer
Location
src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages