Maliheh Aramon

Hi,   I found that the LP relaxation solution is not an optimal solution sometimes. Could you please elaborate more on this? How do you know that the LP solution is not optimal? The getNodeRel() ...

 Hi Karl,  If the same model is solved with the same parameters on the same hardware, the solution path should not change regardless of how many times you solve it. However, traversing the same sol...

Check the article How do I set system environment variables for Gurobi? for setting the environment variables in Linux. Best regards, Maliheh  

Hi Farzane,  How can I access the model X and Y variables and constraints after I opened it? You can use the global function gurobipy.read() function to read the model file in as a Model object. ...

If the continuous variable \(z_s(t)\) is defined with lower bound 0, you do not need any additional binary variable. If the variable \(z_s(t)\) can take negative values as well, you then need two ...

Please check the article How do I model conditional statements in Gurobi? which formulates a constraint very similar to the one you are interested in.  Best regards, Maliheh  

Your recent question was already answered in your other post. We would appreciate it if you avoid cross-posting the same question.  Best regards, Maliheh  

Hi Amit,  It is 1.8GB. Sorry, I probably made a mistake when I was writing the comment. The 1.8GB is based on the memory usage of the code snippet below: import gurobipy as gpfrom gurobipy import ...

To implement the constraint on the weights variables, you need to use the Model.addConstr() method. x = gppd.add_vars(model, weights, ub=1, name="weights")# Add constr \sum weights = 1model.addCon...

Hi Nima,  Is there something to do? Experimenting with parameters Presolve=2 (to reduce the model size and tighten it further, if possible) and MIPFocus=1 (to focus on finding a feasible solution...