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

Input Parameters

• snes - the SNES context

• force - PETSC_TRUE require at least one iteration

Options Database Key

• -snes_force_iteration - Sets forcing an iteration

Note

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

See Also

SNES: Nonlinear Solvers, SNES, TS, SNESSetTrustRegionTolerance(), SNESSetDivergenceTolerance()

Level

intermediate

Location

src/snes/interface/snes.c

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Index of all SNES routines
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Index of all manual pages