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Dec 9 '19 at 14:21 comment added campioni @A.Omidi I used both solvers (CPLEX and CPO) but my model is based in mathematical programming, I mean I did not use specified functions in CPLEX, such alldifferent or even interval variables to state precedence. In think it spend a long time to be solved through CPO because of the model symmetry as they said in other answers.
Dec 7 '19 at 16:26 answer prubin timeline score: 3
Dec 6 '19 at 10:55 comment added A.Omidi @campioni, would you say, what is your problem scale? (I mean, how many binary variables are there in your model?). AFAIK, CP optimizer logic is different from CPLEX logic to solve the MILP problems. I tried a couple of large scales scheduling problems using CP and they were solved in a reasonable time. Are you sure to use the correct form of the CP definition in your model?
Dec 6 '19 at 9:49 history became hot network question
Dec 6 '19 at 9:31 comment added campioni I mean I use the docplex.cp module to call the IBM ILOG CPLEX Optimization Studio in Python
Dec 6 '19 at 4:11 answer Geoffrey Brent timeline score: 9
Dec 5 '19 at 18:56 comment added prubin You mention both CPLEX and CPO (CP Optimizer). Which one are you using?
Dec 5 '19 at 13:04 answer Nikos Kazazakis timeline score: 6
Dec 5 '19 at 12:50 history asked campioni CC BY-SA 4.0