TaoDefaultComputeHessianColor#
Computes the Hessian using colored finite differences.
Synopsis#
#include "petsctao.h"
PetscErrorCode TaoDefaultComputeHessianColor(Tao tao, Vec V, Mat H, Mat B, void *ctx)
Collective
Input Parameters#
tao - the Tao context
V - compute Hessian at this point
ctx - the color object of type
MatFDColoring
Output Parameters#
H - Hessian matrix (not altered in this routine)
B - newly computed Hessian matrix to use with preconditioner (generally the same as H)
See Also#
Tao, MatColoring, TaoSetHessian(), TaoDefaultComputeHessian(), SNESComputeJacobianDefaultColor(), TaoSetGradient()
Level#
advanced
Location#
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages