petsc-3.13.6 2020-09-29

DMTSSetIJacobian

set TS Jacobian evaluation function

Synopsis

#include "petscts.h" 
PetscErrorCode DMTSSetIJacobian(DM dm,TSIJacobian func,void *ctx)

Not Collective

Input Argument

	dm	- DM to be used with TS
	func	- Jacobian evaluation function, see TSSetIJacobian() for calling sequence
	ctx	- context for residual evaluation

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.

Level

advanced

Location