xref: /petsc/src/tao/unconstrained/tutorials/output/eptorsion1_3.out (revision c20d77252dee0f9c80fc6f8b1a6f948e11175edb)
1*c4762a1bSJed Brown
2*c4762a1bSJed Brown---- Elastic-Plastic Torsion Problem -----
3*c4762a1bSJed Brownmx: 10     my: 10
4*c4762a1bSJed Brown
5*c4762a1bSJed Browniter =   0, Function value -0.330579, Residual: 0.728961
6*c4762a1bSJed Brown  ---------- Testing Hessian -------------
7*c4762a1bSJed Brown  Run with -tao_test_hessian_view and optionally -tao_test_hessian <threshold> to show difference
8*c4762a1bSJed Brown    of hand-coded and finite difference Hessian entries greater than <threshold>.
9*c4762a1bSJed Brown  Testing hand-coded Hessian, if (for double precision runs) ||J - Jfd||_F/||J||_F is
10*c4762a1bSJed Brown    O(1.e-8), the hand-coded Hessian is probably correct.
11*c4762a1bSJed Brown  ||H - Hfd||_F/||H||_F = 2.97218e-10, ||H - Hfd||_F = 1.31584e-08
12*c4762a1bSJed Browniter =   0, Function value -0.38665, Residual: 0.531327
13*c4762a1bSJed Brown  ---------- Testing Hessian -------------
14*c4762a1bSJed Brown  ||H - Hfd||_F/||H||_F = 4.25681e-10, ||H - Hfd||_F = 1.88457e-08
15*c4762a1bSJed Browniter =   1, Function value -0.414886, Residual: 0.204735
16*c4762a1bSJed Brown  ---------- Testing Hessian -------------
17*c4762a1bSJed Brown  ||H - Hfd||_F/||H||_F = 1.35328e-10, ||H - Hfd||_F = 5.99124e-09
18*c4762a1bSJed Browniter =   2, Function value -0.427745, Residual: 1.11757e-06
19