When I try the multistart function, it returned -10 as the local exitflag, however, I cannot find any information about this exitflag. Can anyone specify it for me? Many thanks!
Here are some informations about my case:
- I used my own objective function as well as a nonlinear constraint function. Also, lb and ub are equipped.
- When I use fmincon to evaluate the initial points, everything is alright. The algorithm terminated with FunctionTolerance criterion and provide an optimal solution of 0.98 (seems a local minimum).
- It returns -10 as exitflage, no matter using multistart :(1) with or without parrallel; (2) with SQP or active-set
Thanks for any help!
information from the command window:
[
Starting parallel pool (parpool) using the 'local' profile ...
Connected to the parallel pool (number of workers: 12).
Running the local solvers in parallel.
Run Local Local Local Local First-order
Index exitflag f(x) # iter F-count optimality
1 -10 0
16 -10 0
15 -10 0
14 -10 0
13 -10 0
62 -10 0
61 -10 0
87 -10 0
88 -10 0
93 -10 0
99 -10 0
2 -10 0
20 -10 0
19 -10 0
18 -10 0
17 -10 0
64 -10 0
63 -10 0
80 -10 0
79 -10 0
90 -10 0
91 -10 0
3 -10 0
24 -10 0
23 -10 0
22 -10 0
21 -10 0
66 -10 0
65 -10 0
84 -10 0
83 -10 0
95 -10 0
98 -10 0
4 -10 0
28 -10 0
27 -10 0
26 -10 0
25 -10 0
74 -10 0
73 -10 0
5 -10 0
32 -10 0
31 -10 0
30 -10 0
29 -10 0
6 -10 0
36 -10 0
35 -10 0
34 -10 0
33 -10 0
72 -10 0
71 -10 0
7 -10 0
40 -10 0
39 -10 0
38 -10 0
37 -10 0
8 -10 0
9 -10 0
48 -10 0
47 -10 0
46 -10 0
45 -10 0
76 -10 0
75 -10 0
10 -10 0
52 -10 0
51 -10 0
50 -10 0
49 -10 0
82 -10 0
81 -10 0
11 -10 0
56 -10 0
55 -10 0
54 -10 0
53 -10 0
70 -10 0
69 -10 0
86 -10 0
12 -10 0
60 -10 0
59 -10 0
58 -10 0
57 -10 0
68 -10 0
67 -10 0
85 -10 0
96 -10 0
97 -10 0
94 -10 0
89 -10 0
78 -10 0
77 -10 0
44 -10 0
43 -10 0
42 -10 0
41 -10 0
92 -10 0
100 -10 0
MultiStart encountered failures in the user provided functions.
All 100 local solver runs failed in a user supplied function.
]
How does it failed? This makes me very confused.
