petsc-3.14.5 2021-03-03
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# SNESMonitorFunction

functional form passed to SNESMonitorSet() to monitor convergence of nonlinear solver

### Synopsis

    #include <petscsnes.h>
    $    PetscErrorCode SNESMonitorFunction(SNES snes,PetscInt its, PetscReal norm,void *mctx)

Collective on snes

### Input Parameters

| snes | - the SNES context
| its | - iteration number
| norm | - 2-norm function value (may be estimated)
| mctx | - [optional] monitoring context

### See Also

SNESMonitorSet(), SNESMonitorGet()

### Level

advanced

### Location

src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages