Matthias Miltenberger
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Gurobi Staff
Gurobi Optimization Support Manager - Berlin, Germany
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Articles
Recent activity by Matthias Miltenberger-
How do I set environment variables for Python/Jupyter?
You can specify the location of a Gurobi license file by setting the environment variable GRB_LICENSE_FILE. In some environments like interactive Jupyter sessions running in VSCode, it may be diffi...
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How do I stop a running Compute Server?
The error messageerror : Error creating storage service, was grb_rs already started? : Error opening data store: Opening DB failedindicates that there is a Compute Server (grb_rs) with the sa...
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How do I use priorities in Compute Server groups?
Optimization jobs can be sent to a Compute Server using different priorities to control the queueing process. If the Compute Server cluster is organized into multiple groups, each group can be assi...
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Why does Gurobi perform differently on different machines?
Solving the same model on different machines can result in different solution paths.This effect is a well-known phenomenon called "Performance Variability". Hardware plays an important role as the...
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How do I efficiently add constraints using std::vector in C++?
When building constraints in C++ using the following data structures:std::vector<double> a; std::vector<GRBVar> x;The most efficient method is to use addTerms() to construct a linear expression in ...
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How do I resolve the error "TypeError due to missing GUROBI_HOME"?
Note: This only affects Gurobi 9.1.0 and earlier running on the Windows platform with Python versions 3.8 and later.When installing Gurobi via conda, i.e., conda install -c gurobi gurobiyou may rec...
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How do I verify the integrity of the downloaded installation package?
Gurobi provides MD5 hashes to check whether the file you downloaded is not corrupt and contains exactly the intended data.Depending on your operating system, there are different ways of verifying t...
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How do I resolve the error "RStudio: Gurobi library not found"?
On Linux systems, the Gurobi system environment variables GUROBI_HOME and LD_LIBRARY_PATH are usually defined in your .bashrc file. This file might not be loaded by all tools and applications, incl...
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How do I uninstall Gurobi from Windows?
Via the Windows GUITo uninstall Gurobi, open the Start Menu and type "remove" to find the "Add and remove programs" section. There you will find all installed Gurobi versions, and you can select wh...
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How do I extract files from the Gurobi MSI installer package?
Typically, Gurobi can be installed on a Windows machine by double-clicking on the downloaded Gurobi MSI (Microsoft installer) file. Installing Gurobi on Windows requires administrator permissions b...