PETSc version 3.15.5
SNESMonitorSet
Sets an ADDITIONAL function that is to be used at every iteration of the 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 on SNES
Input Parameters
|  | snes | - the SNES context | 
|  | f | - the monitor function, see SNESMonitorFunction for the calling sequence | 
|  | mctx | - [optional] user-defined context for private data for the
monitor routine (use NULL if 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. | 
Notes
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 Notes
Only a single monitor function can be set for each SNES object
See Also
 SNESMonitorDefault(), SNESMonitorCancel(), SNESMonitorFunction
Level
intermediate
Location
src/snes/interface/snes.c
Examples
src/snes/tutorials/ex2.c.html
src/snes/tutorials/ex3.c.html
src/snes/tutorials/ex12.c.html
src/snes/tutorials/ex21.c.html
src/snes/tutorials/ex22.c.html
src/ts/tutorials/ex7.c.html
src/ts/tutorials/ex12.c.html
src/ts/tutorials/ex52.c.html
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages