DMSNESCreateJacobianMF#
Create a Mat which computes the action of the Jacobian matrix-free
Synopsis#
#include "petscdmplex.h"
#include "petscsnes.h"
PetscErrorCode DMSNESCreateJacobianMF(DM dm, Vec X, void *user, Mat *J)
Collective
Input Parameters#
dm - The
DMX - The evaluation point for the Jacobian
user - A user context, or
NULL
Output Parameter#
J - The
Mat
Notes#
Vec X is kept in J, so updating X then updates the evaluation point.
This only works for DMPLEX
See Also#
SNES: Nonlinear Solvers, DM, SNES, DMSNESComputeJacobianAction()
Level#
advanced
Location#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages