petsc-3.8.4 2018-03-24
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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

Keywords

SNES, nonlinear, monitor, norm

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