petsc-3.7.7 2017-09-25
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TaoComputeObjectiveAndGradient

 Computes the objective function value at a given point

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoComputeObjectiveAndGradient(Tao tao, Vec X, PetscReal *f, Vec G)
Collective on Tao

Input Parameters

tao - the Tao context
X - input vector

Output Parameter

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

Notes: TaoComputeObjectiveAndGradient() is typically used within minimization implementations, so most users would not generally call this routine themselves.

See Also

TaoComputeGradient(), TaoComputeObjectiveAndGradient(), TaoSetObjectiveRoutine()

Level:advanced
Location:src/tao/interface/taosolver_fg.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages