SNESLineSearchGetTolerances

Gets the tolerances for the line search.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchGetTolerances(SNESLineSearch linesearch, PetscReal *steptol, PetscReal *maxstep, PetscReal *rtol, PetscReal *atol, PetscReal *ltol, PetscInt *max_its)

Not Collective

Input Parameter

• linesearch - the line search context

Output Parameters

• steptol - The minimum steplength

• maxstep - The maximum steplength

• rtol - The relative tolerance for iterative line searches

• atol - The absolute tolerance for iterative line searches

• ltol - The change in lambda tolerance for iterative line searches

• max_its - The maximum number of iterations of the line search

Note

Different line searches may implement these parameters slightly differently as the type requires.

See Also

SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchSetTolerances()

Level

intermediate

Location

src/snes/linesearch/interface/linesearch.c

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