Originally posted by: PingLiu

I need to solve the problem attached in the file test.zip.
after I run the command in Matlab

[x,fval,exitflag,output] = cplexmilp(f,Aineq,bineq,Aeq,beq,[],[],[],lb,ub,ctype,[],[]);

or

cplex=Cplex(''); cplex.Model.sense = 'minimize';
cplex.addCols(f,[],lb,ub,ctype);
cplex.addRows([-inf*ones(size(bineq,1),1);beq], [Aineq;Aeq], [bineq;beq]);
cplex.solve();

I cannot get any response from matlab after waiting for several tens of minutes.
what's wrong with it?
thanks a lot.
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Originally posted by: SystemAdmin

Maybe it just takes longer than expected to solve your model?
Do you see any progress if you enable diagnostics?
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Originally posted by: John Cui

Did you run our examples in your matlab? such as cplexmilpex, or mipex1? Is it the same as your code?

John Cui
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Originally posted by: PingLiu

yes, I think it maybe because of the performance of my mathematics model.
after I modify the model, cplex can generate result as usual.
thanks a lot.
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Originally posted by: PingLiu

excuse me, how can I enable diagnostics?
sometimes when the model takes too much time to run or is infeasible,
no error information is given out.
I think it's hard to find the point where the constraints are violated.
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Originally posted by: John Cui

How about set options.diagnostics = 'on'?

If it doesn't work, I suggest you to upgrade your CPLEX to the latest edition 12.4.

John Cui
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