petsc-dev 2014-07-25
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SNESConvergedSkip

Convergence test for SNES that NEVER returns as converged, UNLESS the maximum number of iteration have been reached.

Synopsis

#include "petsc-private/snesimpl.h"   
PetscErrorCode  SNESConvergedSkip(SNES snes,PetscInt it,PetscReal xnorm,PetscReal snorm,PetscReal fnorm,SNESConvergedReason *reason,void *dummy)
Logically Collective on SNES

Input Parameters

snes - the SNES context
it - the iteration (0 indicates before any Newton steps)
xnorm - 2-norm of current iterate
snorm - 2-norm of current step
fnorm - 2-norm of function at current iterate
dummy - unused context

Output Parameter

reason -SNES_CONVERGED_ITERATING, SNES_CONVERGED_ITS, or SNES_DIVERGED_FNORM_NAN

Notes

Convergence is then declared after a fixed number of iterations have been used.

Keywords

SNES, nonlinear, skip, converged, convergence

See Also

SNESSetConvergenceTest()

Level:advanced
Location:
src/snes/interface/snesut.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages