Kostja Siefen
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Activity overview
Latest activity by Kostja Siefen-
Kostja Siefen commented,
Official comment Please take a look at our Numerical Guidelines: https://www.gurobi.com/documentation/current/refman/numerics_gurobi_guidelines.html
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Kostja Siefen commented,
Please create a self-contained, minimal working example and submit a ticket at https://support.gurobi.com. This way we can try to reproduce it on our end.
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Kostja Siefen commented,
Official comment Absolutely, you can implement this with a callback function. Here is a documentation link for Python: https://www.gurobi.com/documentation/current/refman/py_callbacks.html Within the callback, you...
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Kostja Siefen commented,
Official comment The full list of status codes is documented at https://www.gurobi.com/documentation/current/refman/optimization_status_codes.html. There is nothing wrong with writing your own dictionary to convert...
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Kostja Siefen created an article,
"No compatible runtime available for version X.X.X" with Compute Server
Gurobi Compute Server 8+ is able to work with multiple Gurobi releases on the client side. The server will automatically select the appropriate runtime, depending on the version of the Gurobi Opti...
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Kostja Siefen created an article,
Which R versions are supported by Gurobi?
Gurobi ships with a compiled R API package that is compatible with the latest R version at the time of the Gurobi release. You may see a warning like this if you try to use the package from a diffe...
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Kostja Siefen created an article,
How to handle a NoClassDefFoundError?
You may see a java.lang.NoClassDefFoundError exception when using the Gurobi Java API. Examples: java.lang.NoClassDefFoundError: gurobi/GRBException java.lang.NoClassDefFoundError: Could not initia...
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Kostja Siefen created an article,
How to handle a BadImageFormatException?
You may see a System.BadImageFormatException the first time you access the Gurobi .NET assembly. The Gurobi .NET assembly (e.g. gurobiXX.NET.dll) is compiled for AnyCPU (64-bit preferred). Your app...
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Kostja Siefen created an article,
Why do I see increasing/large MIP gap values?
You may see something like this in your log file: 1503 1467 -283.00000 284 285 2160.99979 -285.00000 113% 609 127s H 1968 1870 1858.0000000 -285.00000 115% 662 1...
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Kostja Siefen created an article,
How do I use Gurobi with PyCharm?
In a typical workflow each PyCharm project will have a virtual environment associated with it. The gurobipy package must be available to the python interpreter of that venv. Here are instructions...