TaoLineSearchComputeObjectiveAndGTS#
Computes the objective function value and inner product of gradient and step direction at a given point
Synopsis#
#include "petsctaolinesearch.h"
PetscErrorCode TaoLineSearchComputeObjectiveAndGTS(TaoLineSearch ls, Vec x, PetscReal *f, PetscReal *gts)
Collective
Input Parameters#
ls - the
TaoLineSearchcontextx - input vector
Output Parameters#
f - Objective value at
xgts - inner product of gradient and step direction at
x
Note#
TaoLineSearchComputeObjectiveAndGTS() is typically used within line searches
so most users would not generally call this routine themselves.
See Also#
TAO: Optimization Solvers, Tao, TaoLineSearch, TaoLineSearchComputeGradient(), TaoLineSearchComputeObjectiveAndGradient(), TaoLineSearchSetObjectiveRoutine()
Level#
developer
Location#
src/tao/linesearch/interface/taolinesearch.c
Index of all TaoLineSearch routines
Table of Contents for all manual pages
Index of all manual pages