SNESMonitorSet#
Sets an ADDITIONAL function that is to be used at every iteration of the SNES nonlinear solver to display the iteration’s progress.
Synopsis#
#include "petscsnes.h"  
PetscErrorCode SNESMonitorSet(SNES snes, PetscErrorCode (*f)(SNES, PetscInt, PetscReal, void *), void *mctx, PetscErrorCode (*monitordestroy)(void **))
Logically Collective
Input Parameters#
- snes - the - SNEScontext
- f - the monitor function, for the calling sequence see - SNESMonitorFunction
- mctx - [optional] user-defined context for private data for the monitor routine (use - NULLif no context is desired)
- monitordestroy - [optional] routine that frees monitor context (may be - NULL)
Options Database Keys#
- -snes_monitor - sets - SNESMonitorDefault()
- -snes_monitor draw::draw_lg - sets line graph monitor, 
- -snes_monitor_cancel - cancels all monitors that have been hardwired into a code by calls to - SNESMonitorSet(), but does not cancel those set via the options database.
Note#
Several different monitoring routines may be set by calling
SNESMonitorSet() multiple times; all will be called in the
order in which they were set.
Fortran Note#
Only a single monitor function can be set for each SNES object
See Also#
SNES: Nonlinear Solvers, SNES, SNESSolve(), SNESMonitorDefault(), SNESMonitorCancel(), SNESMonitorFunction
Level#
intermediate
Location#
Examples#
src/ts/tutorials/ex12.c
src/snes/tutorials/ex21.c
src/ts/tutorials/ex7.c
src/ts/tutorials/ex52.c
src/snes/tutorials/ex3.c
src/snes/tutorials/ex2.c
src/snes/tutorials/ex22.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages