A.Omidi

Dear Eli, Many thanks for your detailed explanation. I can do that for modifying my model and it works fine. :) Would you say please, how you can use LaTex in your comments? I tried it but, it seem...

Many thanks for your detailed explanations. Regards

Dear Eli, Thanks so much for your detailed explanation. I can do that.   Regards

Hi,  With thanks for your useful comment, I try to use you mentioned parameters. I'm using Gurobi Java API. The parameters are set as follows: model.set(GRB.IntParam.PreCrush, 1);model.set(GRB.IntP...

Dear Sonja, Thanks for your useful comments. As you mentioned, I do not have any special cuts to add to the model. I will need to add some of the Cutting Planes (such as Gomory) separately and chec...

Hi Michael,   Thanks for your advice. It works fine. Regards Abbas

Dear Tobias, Thanks for your reply. I have written the model using binary (or integer) variables and it works fine (using GUROBI Java API). AKAIK, the SOS1 variables could reduce the solving time. ...

Dear Mr Luce, Thanks for your comment. I was trying to model a scheduling problem. I have some constraints that I can write to them as an SOS constraint. As per some issues on the modelling languag...

Hi, Thanks so much for useful replay. Its work fine.   Regards Omidi. A

Dear Mr. Luce, Thanks for your replay. I try to copy the variable in the one-dimensional array but, when I run the code I have an error. The code is: // Definition variable rank[i][k]GRBVar[][] ran...