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#

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 the Tao is already counting the number of evaluations.

See Also#

TaoLineSearch

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