petsc-3.8.4 2018-03-24

TaoLineSearchGetNumberFunctionEvaluations

Gets the number of function and gradient evaluation routines used by the line search in last application (not cumulative).

Synopsis

#include "petsctaolinesearch.h" 
PetscErrorCode TaoLineSearchGetNumberFunctionEvaluations(TaoLineSearch ls, PetscInt *nfeval, PetscInt *ngeval, PetscInt *nfgeval)

Not Collective

Input Parameter

ls -the TaoLineSearch context

Output Parameters

	nfeval	- number of function evaluations
	ngeval	- number of gradient evaluations
	nfgeval	- number of function/gradient evaluations

Note

If the line search is using the Tao objective and gradient routines directly (see TaoLineSearchUseTaoRoutines()), then TAO is already counting the number of evaluations.

Level:intermediate
Location:src/tao/linesearch/interface/taolinesearch.c
Index of all TaoLineSearch routines
Table of Contents for all manual pages
Index of all manual pages