tao-2.1-p0 2012-07-24

TaoSetObjectiveAndGradientRoutine

Sets a combined objective function and gradient evaluation routine for minimization

Synopsis

#include "taosolver.h" 
PetscErrorCode TaoSetObjectiveAndGradientRoutine(TaoSolver tao, PetscErrorCode (*func)(TaoSolver, Vec, PetscReal *, Vec, void*), void *ctx)
Logically collective on TaoSolver

Input Parameter

tao - the TaoSolver context
func - the gradient function
ctx - [optional] user-defined context for private data for the gradient evaluation routine (may be PETSC_NULL)

Calling sequence of func

     func (TaoSolver tao, Vec x, Vec g, void *ctx);

x - input vector
g - gradient value (output)
ctx - [optional] user-defined function context

See Also

TaoSetObjectiveRoutine(), TaoSetHessianRoutine() TaoSetObjectiveAndGradientRoutine()

Level:beginner
Location:src/interface/taosolver_fg.c
TAO Solver Index
Table of Contents

Examples

src/unconstrained/examples/tutorials/eptorsion1.c.html
src/unconstrained/examples/tutorials/eptorsion2.c.html
src/unconstrained/examples/tutorials/minsurf2.c.html
src/unconstrained/examples/tutorials/rosenbrock1.c.html
src/unconstrained/examples/tutorials/eptorsion2f.F.html
src/unconstrained/examples/tutorials/rosenbrock1f.F.html
src/bound/examples/tutorials/plate2.c.html
src/bound/examples/tutorials/jbearing2.c.html
src/bound/examples/tutorials/plate2f.F.html