petsc-3.3-p7 2013-05-11
DMSNESSetJacobian
set SNES Jacobian evaluation function
Synopsis
#include "petscsnes.h"
#include "petscdm.h"
PetscErrorCode DMSNESSetJacobian(DM dm,PetscErrorCode (*func)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void *ctx)
Not Collective
Input Argument
| dm | - DM to be used with SNES
|
| func | - Jacobian evaluation function, see SNESSetJacobian() for calling sequence
|
| ctx | - context for residual evaluation
|
Note
SNESSetJacobian() 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
DMSNESSetContext(), SNESSetFunction(), DMSNESGetJacobian(), SNESSetJacobian()
Level:advanced
Location:src/snes/utils/dmsnes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/snes/examples/tutorials/ex22.c.html