TaoLineSearchComputeObjectiveAndGradient#

Computes the objective function value at a given point

Synopsis#

#include "petsctaolinesearch.h" 
PetscErrorCode TaoLineSearchComputeObjectiveAndGradient(TaoLineSearch ls, Vec x, PetscReal *f, Vec g)

Collective

Input Parameters#

ls - the TaoLineSearch context
x - input vector

Output Parameters#

f - Objective value at x
g - Gradient vector at x

Note#

TaoLineSearchComputeObjectiveAndGradient() 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