PETSc version 3.15.5
TSComputeRHSJacobianConstant
Reuses a Jacobian that is time-independent. 
Synopsis
#include "petscts.h"  
PetscErrorCode TSComputeRHSJacobianConstant(TS ts,PetscReal t,Vec U,Mat A,Mat B,void *ctx)
Collective on TS
Input Arguments
|  | ts | - time stepping context | 
|  | t | - time at which to evaluate | 
|  | U | - state at which to evaluate | 
|  | ctx | - context | 
Output Arguments
|  | A | - pointer to operator | 
|  | B | - pointer to preconditioning matrix | 
|  | flg | - matrix structure flag | 
Notes
This function is intended to be passed to TSSetRHSJacobian() to evaluate the Jacobian for linear time-independent problems.
See Also
 TSSetRHSFunction(), TSSetRHSJacobian(), TSComputeRHSFunctionLinear()
Level
intermediate
Location
src/ts/interface/ts.c
Examples
src/ts/tutorials/ex3.c.html
src/ts/tutorials/ex4.c.html
src/ts/tutorials/ex5.c.html
src/ts/tutorials/ex6.c.html
src/tao/unconstrained/tutorials/spectraladjointassimilation.c.html
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages