Tobias Achterberg

I don't know the GLPK API, so I cannot tell you how you would load a 'mymodel.mps' into GLPK. But there should be some read function that can do this. Gurobi converts indicator constraints during p...

Unfortunately, the answer to both of your questions is "no". You can tell Gurobi to use pretty much all cuts it finds by setting the "CutPasses" parameter to a very large number. But still, Gurobi ...

You can use m.write("mymodel.mps") to save the model to disk in MPS file format. Then, you can load it into basically any solver you want, as the MPS file format is industry standard. Note that thi...

Yes, this should work. Please give it a try! Tobias

No, the point is that in some cases the user does not have a complete solution at hand, but is just speculating that a certain combination of variable assignments can be extended to a full solution...

Gurobi does not keep an open connection to the token server. So, whenever it needs to check the license, it will connect to the token server with a fresh connection. So, unless you change the DNS o...

No, the CutPasses parameter should do the trick. Could it be that you encountered an integer solution on the way (I mean that the LP solution was integral)? When lazy constraints are involved, thin...

Do you have smaller versions of the problem that you are able to solve? If so, the tuning tool applied on those smaller versions may identify parameters that are useful also for the larger problem.

It could just be that Gurobi aborts the root cut loop and goes into branching even though you might still be able to find violated cuts. This is an important decision for performance whether one co...

Why do you want to use SOS1? An SOS1 constraint says that at most one of the variables must be non-zero. If all variables are binary (as in your case), an SOS1 constraint on a set x1, x2, ..., xn i...