petsc-3.14.6 2021-03-30
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Sets the function that computes the Jacobian of F w.r.t. the parameters P where F(Udot,U,t) = G(U,P,t), as well as the location to store the matrix.


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

Input Parameters

ts - TS context obtained from TSCreate()
Amat - JacobianP matrix
func - function
ctx - [optional] user-defined function context

Calling sequence of func

func (TS ts,PetscReal t,Vec y,Mat A,void *ctx);
t - current timestep
U - input vector (current ODE solution)
Udot - time derivative of state vector
shift - shift to apply, see note below
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

See Also




Index of all Sensitivity routines
Table of Contents for all manual pages
Index of all manual pages