PETSc version 3.15.5
SNESMonitorRatio
Monitors progress of the SNES solvers by printing the ratio of residual norm at each iteration to the previous. 
Synopsis
#include "petsc/private/snesimpl.h"   
PetscErrorCode  SNESMonitorRatio(SNES snes,PetscInt its,PetscReal fgnorm,PetscViewerAndFormat *vf)
Collective on SNES
Input Parameters
|  | snes | - the SNES context | 
|  | its | - iteration number | 
|  | fgnorm | - 2-norm of residual (or gradient) | 
|  | dummy | - context of monitor | 
Notes
Insure that SNESMonitorRatio() is called when you set this monitor
See Also
 SNESMonitorSet(), SNESMonitorSolution(), SNESMonitorRatio()
Level
intermediate
Location
src/snes/interface/snesut.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages