TaoLineSearchSetFromOptions

Sets various TaoLineSearch parameters from user options.

Synopsis

#include "petsctaolinesearch.h" 
PetscErrorCode TaoLineSearchSetFromOptions(TaoLineSearch ls)

Collective

Input Parameter

• ls - the TaoLineSearch context

Options Database Keys

• -tao_ls_type type - The algorithm that TaoLineSearch uses (more-thuente, gpcg, unit)

• -tao_ls_ftol tol - tolerance for sufficient decrease

• -tao_ls_gtol tol - tolerance for curvature condition

• -tao_ls_rtol tol - relative tolerance for acceptable step

• -tao_ls_stepinit step - initial steplength allowed

• -tao_ls_stepmin step - minimum steplength allowed

• -tao_ls_stepmax step - maximum steplength allowed

• -tao_ls_max_funcs n - maximum number of function evaluations allowed

• -tao_ls_view - display line-search results to standard output

See Also

TaoLineSearch

Level

beginner

Location

src/tao/linesearch/interface/taolinesearch.c

Implementations

TaoLineSearchSetFromOptions_Armijo() in src/tao/linesearch/impls/armijo/armijo.c
TaoLineSearchSetFromOptions_OWArmijo() in src/tao/linesearch/impls/owarmijo/owarmijo.c

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Index of all TaoLineSearch routines
Table of Contents for all manual pages
Index of all manual pages