Simon Bowly

Hi Saeid, If you are looking for a mapping in your model based on this dictionary, i.e. if x = 1 then y = 2, if x = 3 then y = 4, etc, then yes, you would need to introduce binary variables which e...

Hi Saeid, No, you cannot use variables as keys. I am not sure I understand how this would help you here, could you clarify what you are trying to achieve? Maybe by writing down the mathematical for...

Hi Madhushini, In your initial data setup, you should first create P_initialWt as a pandas series over the same Facility index as your other data: P_initialWt = pd.Series({'a': 0.1, 'b': 0.3, 'c': ...

Hi Youssef, When you install gurobipy using pip, there is a trial license automatically included which is restrictive in terms of the size of the models it can solve. However, any other valid Gurob...

Hi Victor, Could you please post a minimal, reproducible example? This must include how all variables and data in your code are created so that we can reproduce the error and point to the issue. An...

Hi Mohamad, Since the Gurobi logging output has started, your formulation code is complete and the model is being solved (i.e. the model.optimize() statement has been reached). So I don't think you...

Hi Mohamad, I ran your code, but found that the model is formulated and solved in a fraction of a second. So it is hard to say where the bottleneck is. I assume you are running this with a much lar...

Hi Ryusei, When you write an ILP file, Gurobi writes the computed Irreducible Inconsistent Subsystem (IIS) of your infeasibly model to the named file. This is not the full model, but is instead a s...

Hi Grace, You cannot automate the machine licensing process, but an alternative is to use a WLS license. This license is not bound to a specific machine, but it requires that the cluster machines c...

Hi Grace, We offer free site licenses to academic institutions which are best suited for use on cluster machines. Ask your network administrator at the university to submit a request at support.gur...