petsc-master 2019-10-14
Report Typos and Errors

SNESSetForceIteration

force SNESSolve() to take at least one iteration regardless of the initial residual norm

Synopsis

#include "petscsnes.h"  
PetscErrorCode  SNESSetForceIteration(SNES snes,PetscBool force)
Logically Collective on SNES

Input Parameters

snes - the SNES context
force - PETSC_TRUE require at least one iteration

Options Database Keys

-snes_force_iteration <force> -Sets forcing an iteration

Notes

This is used sometimes with TS to prevent TS from detecting a false steady state solution

See Also

SNESSetTrustRegionTolerance(), SNESSetDivergenceTolerance()

Level

intermediate

Location

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