Stop fmincon and continue routine.

Question

Carlos 2014-7-10

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/141301-stop-fmincon-and-continue-routine

编辑： Matt J 2014-7-10

Hello. Thanks in advance for your help.

I am solving certain problem by using a genetic algorithm, after 'x' iterations i try to improve some chromosomes by calling a fmincon function, using a SQP solver. The problem is that sometimes the SQP gets stuck and i do not know the reason (i am guessing that it can be a problem while computing the hessian or something like that, when i press ctrl -c matlab always says that the operation has been terminated In fmincon (line 910) [X,FVAL,EXITFLAG,OUTPUT,LAMBDA,GRAD,HESSIAN] = sqpLineSearch(funfcn,X,full(A),full(B),full(Aeq),full(Beq), ...).

Ok, what i want to di is to stop the search after some time; but i do want the algorithm to continue with the next chromosome (something like break in a for loop or a return in a 'while'), i.e, i do not want to stop and lose the results of the whole simulations (Genetic Algorithm and some SQP's).

I tried 'return' and it still gets stuck, 'break' is not possible outside a for, when i use a timer and put an error message, the simulation stops and i lose the simulations results.

Any help will be appreciated. Thanks.