petsc-3.12.5 2020-03-29
TSComputeSNESJacobian
Compute the SNESJacobian
Synopsis
#include "petscts.h"
PetscErrorCode TSComputeSNESJacobian(TS ts,Vec x,Mat J,Mat Jpre)
Input Parameters
| ts | - the TS context obtained from TSCreate()
|
| x | - state vector
|
Output Parameters
| J | - Jacobian matrix
|
| Jpre | - preconditioning matrix for J (may be same as J)
|
Notes
Using SNES to compute the Jacobian enables finite differencing when TS Jacobian is not available.
Level
developer
Location
src/ts/interface/sensitivity/tssen.c
Index of all Sensitivity routines
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