#include "taosolver.h"
PetscErrorCode TaoDefaultComputeHessian(TaoSolver tao,Vec V,Mat *H,Mat *B,
MatStructure *flag,void *dummy)
Collective on TaoSolver
| tao | - the TaoSolver context | |
| V | - compute Hessian at this point | |
| dummy | - not used |
| H | - Hessian matrix (not altered in this routine) | |
| B | - newly computed Hessian matrix to use with preconditioner (generally the same as H) | |
| flag | - flag indicating whether the matrix sparsity structure has changed |
| -tao_fd | - Activates TaoDefaultComputeHessian() | |
| -tao_view_hessian | - view the hessian after each evaluation using PETSC_VIEWER_STDOUT_WORLD |
Level:advanced
Location:src/interface/fdiff.c
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