examples/Ysplitter/splitter_opt_2D.py

[joamatab]

the splitter_opt_2D works but has an abnormal termination

Im using lumerical2019r6 python3 64 bits anaconda, centos7

.........
Making forward solve
Making adjoint solve
Running solves
Processing forward solve
FOM = 0.9494040667424216
Processing adjoint solve
Calculating gradients
Getting d eps: dx = 1e-09
..........

       * * *

Tit = total number of iterations
Tnf = total number of function evaluations
Tnint = total number of segments explored during Cauchy searches
Skip = number of BFGS updates skipped
Nact = number of active bounds at final generalized Cauchy point
Projg = norm of the final projected gradient
F = final function value

       * * *

N Tit Tnf Tnint Skip Nact Projg F
10 28 126 37 1 0 4.760D-01 -9.494D-01
F = -0.94940406674242162

ABNORMAL_TERMINATION_IN_LNSRCH

Line search cannot locate an adequate point after 20 function
and gradient evaluations. Previous x, f and g restored.
Possible causes: 1 error in function or gradient evaluation;
2 rounding error dominate computation.

Cauchy time 0.000E+00 seconds.
Subspace minimization time 0.000E+00 seconds.
Line search time 0.000E+00 seconds.

Total User time 0.000E+00 seconds.

FINAL FOM = 0.9494040667424216
FINAL PARAMETERS = [2.57831226e-07 2.74703945e-07 2.66536470e-07 3.19842826e-07
5.32599176e-07 6.04490828e-07 6.21801285e-07 6.25213501e-07
6.30480682e-07 6.02122513e-07]