#include "tao.h" int TaoAppDefaultComputeHessianColor(TAO_APPLICATION taoapp, Vec V, Mat *HH,Mat *BB, MatStructure *flag,void *ctx)Collective on TAO_APPLICATION
tao | - the TAO_APPLICATION context | |
V | - compute Hessian at this point | |
ctx | - the TAO_APPLICATION structure, cast to (void*) |
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 |
-mat_fd_coloring_freq <freq> | - - -tao_view_hessian - view the hessian after each evaluation using PETSC_VIEWER_STDOUT_WORLD |