xref: /petsc/src/tao/unconstrained/tutorials/output/minsurf2_1.out (revision 174dc0c8cee294b82b85e4dd3b331b29396264fc)
1
2---- Minimum Surface Area Problem -----
3mx: 10     my: 8
4
5iter =   0, Function value 1.45591, Residual: 0.21372
6iter =   1, Function value 1.43049, Residual: 0.132023
7iter =   2, Function value 1.42069, Residual: 0.0887699
8iter =   3, Function value 1.41857, Residual: 0.0676407
9iter =   4, Function value 1.41781, Residual: 0.0161113
10iter =   5, Function value 1.41776, Residual: 0.00313094
11iter =   6, Function value 1.41776, Residual: 0.00280956
12iter =   7, Function value 1.41776, Residual: 0.000935101
13Tao Object: 1 MPI process
14  type: lmvm
15    Gradient steps: 1
16    LMVM Matrix:
17      Mat Object: (tao_lmvm_) 1 MPI process
18        type: lmvmbfgs
19        Max. storage: 5
20        Used storage: 5
21        Number of updates: 6
22        Number of rejects: 0
23        Number of resets: 1
24        J0:
25          Mat Object: (tao_lmvm_mat_lmvm_J0_) 1 MPI process
26            type: diagonal
27            rows=80, cols=80
28              Vec Object: 1 MPI process
29                type: seq
30        Rescale type: diagonal
31        Rescale history: 1
32        Rescale params: alpha=1., beta=0.5, rho=1.
33        Rescale convex factor: theta=0.125
34  TaoLineSearch Object: 1 MPI process
35    type: more-thuente
36    maximum function evaluations=30
37    tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9
38    total number of function evaluations=0
39    total number of gradient evaluations=0
40    total number of function/gradient evaluations=1
41    Termination reason: 1
42  convergence tolerances: gatol=0.001,   grtol=1e-08,   steptol=0.,   gttol=0.
43  Residual in Function/Gradient:=0.000935101
44  Objective value=1.41776
45  total number of iterations=7,                          (max: 2000)
46  total number of function/gradient evaluations=8,      (max: 4000)
47  Solution converged:    ||g(X)|| <= gatol
48