petsc-3.14.6 2021-03-30

TSGetRHSJacobianP

Gets the function that computes the Jacobian of G w.r.t. the parameters P where U_t = G(U,P,t), as well as the location to store the matrix.

#include "petscts.h"  
PetscErrorCode TSGetRHSJacobianP(TS ts,Mat *Amat,PetscErrorCode (**func)(TS,PetscReal,Vec,Mat,void*),void **ctx)

Logically Collective on TS

- TS context obtained from TSCreate()

	Amat	- JacobianP matrix
	func	- function
	ctx	- [optional] user-defined function context

func (TS ts,PetscReal t,Vec y,Mat A,void *ctx);

	t	- current timestep
	U	- input vector (current ODE solution)
	A	- output matrix
	ctx	- [optional] user-defined function context

Amat has the same number of rows and the same row parallel layout as u, Amat has the same number of columns and parallel layout as p

intermediate