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


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