DMTSSetRHSJacobian#
set TS Jacobian evaluation function
Synopsis#
#include "petscts.h"
PetscErrorCode DMTSSetRHSJacobian(DM dm, TSRHSJacobian func, void *ctx)
Not Collective
Input Parameters#
dm - DM to be used with TS
func - Jacobian evaluation routine
ctx - context for residual evaluation
Calling sequence of func#
t - current timestep
u - input vector
Amat - (approximate) Jacobian matrix
Pmat - matrix from which preconditioner is to be constructed (usually the same as Amat)
ctx - [optional] user-defined context for matrix evaluation routine
Note#
TSSetJacobian() is normally used, but it calls this function internally because the user context is actually associated with the DM. This makes the interface consistent regardless of whether the user interacts with a DM or not. If DM took a more central role at some later date, this could become the primary method of setting the Jacobian.
See Also#
DMTSSetContext()
, TSSetFunction()
, DMTSGetJacobian()
, TSSetRHSJacobian()
Level#
advanced
Location#
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages