PETSc version 3.17.4
TaoGetObjectiveAndGradient
Gets a combined objective function and gradient evaluation routine for minimization
Synopsis
#include "petsctao.h"
PetscErrorCode TaoGetObjectiveAndGradient(Tao tao, Vec *g, PetscErrorCode (**func)(Tao, Vec, PetscReal*, Vec, void*), void **ctx)
Not collective
Input Parameter
Output Parameters
| g | - the vector to internally hold the gradient computation
|
| func | - the gradient function
|
| ctx | - user-defined context for private data for the gradient evaluation routine
|
Calling sequence of func
func (Tao tao, Vec x, PetscReal *f, Vec g, void *ctx);
| x | - input vector
|
| f | - objective value (output)
|
| g | - gradient value (output)
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| ctx | - [optional] user-defined function context
|
See Also
TaoSetObjective(), TaoSetGradient(), TaoSetHessian(), TaoSetObjectiveAndGradient()
Level
beginner
Location
src/tao/interface/taosolver_fg.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages