SNESLineSearchSetComputeNorms

Turns on or off the computation of final norms in the line search.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchSetComputeNorms(SNESLineSearch linesearch, PetscBool flg)

Input Parameters

• linesearch - the line search context

• flg - indicates whether or not to compute norms

Options Database Key

• -snes_linesearch_norms - Turns on/off computation of the norms for basic (none) SNESLINESEARCHBASIC line search

Note

This is most relevant to the SNESLINESEARCHBASIC (or equivalently SNESLINESEARCHNONE) line search type since most line searches have a stopping criteria involving the norm.

Developer Note

The options database key is misnamed. It should be -snes_linesearch_compute_norms

See Also

SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchGetNorms(), SNESLineSearchSetNorms(), SNESLineSearchComputeNorms(), SNESLINESEARCHBASIC

Level

intermediate

Location

src/snes/linesearch/interface/linesearch.c

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