SNESLineSearchSetNorms

Sets the computed norms for the current solution X, the current update Y, and the current function value F.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchSetNorms(SNESLineSearch linesearch, PetscReal xnorm, PetscReal fnorm, PetscReal ynorm)

Collective

Input Parameters

• linesearch - the line search context

• xnorm - The norm of the current solution

• fnorm - The norm of the current function, this is the norm(function(X)) where X is the current solution

• ynorm - The norm of the current update (after scaling by the linesearch computed lambda)

Note

This is called by the line search routines to store the values they have just computed

See Also

SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchGetNorms(), SNESLineSearchSetVecs()

Level

developer

Location

src/snes/linesearch/interface/linesearch.c

Examples

src/snes/tutorials/ex1f.F90

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