Marika Karbstein
Gurobi Staff- Total activity 485
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Activity overview
Latest activity by Marika Karbstein-
Marika Karbstein commented,
You can use a gurobi.env file to set OutputFlag or LogToConsole to 0 as described as the second option in How do I suppress all console output from Gurobi? Managing the Gurobi environment and setti...
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Marika Karbstein commented,
I'm not sure what you mean. As I mentioned, I cannot reproduce the numerical error with the model you shared. If you see a numerical error but can solve your model without any problems if you chang...
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Marika Karbstein commented,
What Gurobi version did you use? Do you use any non-default parameter settings (apart from NumericFocus and BarHomogeneous)?I tested the model with Version 10 and 11 and default settings and get: M...
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Marika Karbstein commented,
I have no experience with Azure Function Apps. But the output shows ModuleNotFoundError: No module named 'gurobipy' Did you make sure that gurobipy is installed and can be found?
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Marika Karbstein commented,
Hi Christian, You are right. The infeasibility of the fixed model comes from the violated constraint in the solution.The best thing to do is indeed to try to improve the coefficient range and to re...
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Marika Karbstein commented,
Hi Zlatan, This is not so easy to answer.It is indeed the case that Gurobi will remove unneeded variables and constraints in presolve.I do not know with which number of removable variables/constrai...
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Marika Karbstein commented,
Now I understand: it is not the problem that you re-execute the same code twice in one run, and the second time, it gets stuck and crashes with an out-of-memory error.Instead, you want to run a cod...
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Marika Karbstein commented,
The out-of-memory error is not related to the fact that the license will expire in some days. I do not see in the code snippet you sent that the loop \(\texttt{for mdl in dic_res}\) is executed mor...
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Marika Karbstein commented,
Can you also share how you call CVRP and solving_model for the first and the second run?
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Marika Karbstein commented,
Can you share the code that shows how you re-execute? Do you use the same model object? Do you use the same data?