tao-2.1-p0 2012-07-24

TaoLineSearchGetNumberFunctionEvaluations

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

Synopsis

#include "taolinesearch.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 TaoSolver objective and gradient routines directly (see TaoLineSearchUseTaoSolverRoutines()), then TAO is already counting the number of evaluations.

Level:intermediate
Location:src/linesearch/interface/linesearch.c
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