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

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Index of all manual pages