SNESPicardComputeJacobian

Trivial Jacobian assembly callback used by SNESSetPicard(); the Picard operator is filled in by SNESPicardComputeFunction()

Synopsis

#include "petscsnes.h"  
#include "petscsnes.h"  
PetscErrorCode SNESPicardComputeJacobian(SNES snes, Vec x1, Mat J, Mat B, PetscCtx ctx)

Collective

Input Parameters

• snes - the SNES context

• x1 - the current iterate (unused)

• J - the Jacobian matrix to assemble

• B - the preconditioning matrix (unused)

• ctx - unused application context

Note

Only calls MatAssemblyBegin()/MatAssemblyEnd() on J, because the Picard iteration reuses the operator already assembled by SNESPicardComputeFunction().

See Also

SNES: Nonlinear Solvers, SNES, SNESSetPicard(), SNESPicardComputeFunction(), SNESPicardComputeMFFunction()

Level

developer

Location

src/snes/interface/snes.c

Examples

src/snes/tutorials/ex15.c

---

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