petsc-3.9.4 2018-09-11
TaoComputeHessian
Computes the Hessian matrix that has been set with TaoSetHessianRoutine().
Synopsis
#include "petsctao.h"
PetscErrorCode TaoComputeHessian(Tao tao, Vec X, Mat H, Mat Hpre)
Collective on Tao
Input Parameters
| tao | - the Tao solver context
|
| X | - input vector
|
Output Parameters
| H | - Hessian matrix
|
| Hpre | - Preconditioning matrix
|
Notes
Most users should not need to explicitly call this routine, as it
is used internally within the minimization solvers.
TaoComputeHessian() is typically used within minimization
implementations, so most users would not generally call this routine
themselves.
See Also
TaoComputeObjective(), TaoComputeObjectiveAndGradient(), TaoSetHessianRoutine()
Level
developer
Location
src/tao/interface/taosolver_hj.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages