petsc-3.4.5 2014-06-29
SNESSetGS
Sets the user nonlinear Gauss-Seidel routine for use with composed nonlinear solvers.
Synopsis
#include "petscsnes.h"
PetscErrorCode SNESSetGS(SNES snes,PetscErrorCode (*SNESGSFunction)(SNES,Vec,Vec,void*),void *ctx)
Input Parameters
| snes | - the SNES context
|
| SNESGSFunction | - function evaluation routine
|
| ctx | - [optional] user-defined context for private data for the
smoother evaluation routine (may be NULL)
|
Notes
The GS routines are used by the composed nonlinear solver to generate
a problem appropriate update to the solution, particularly FAS.
Keywords
SNES, nonlinear, set, Gauss-Seidel
See Also
SNESGetFunction(), SNESComputeGS()
Level:intermediate
Location:src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/snes/examples/tutorials/ex5.c.html
src/snes/examples/tutorials/ex15.c.html
src/snes/examples/tutorials/ex19.c.html