Gwyneth Butera
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Gurobi Staff
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Articles
Recent activity by Gwyneth Butera-
What are some useful Python tools?
A great productivity feature of the whole Python ecosystem is the availability and accessibility of tools such as interactive notebooks and integrated development environments. Three such tools are...
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How do I set parameters in Gurobi?
When you want to change the values of Gurobi parameters, you have several options. Setting parameters▸From the Python API You have several options to set parameters in the Python interface. Here a...
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What was the Gurobi Interactive Shell (gurobi.sh or gurobi.bat)?
Please note that starting with version 11.0.2, the Gurobi Interactive Shell has been deprecated. The Gurobi Interactive Shell (gurobi.sh or gurobi.bat) was a set of extensions to the Python shell t...
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How do I use the Gurobi Command Line Interface (gurobi_cl)?
The Gurobi Command Line Interface plays a number of different roles. It: provides a simple interface for solving a model, can also be used to launch a model on a Compute Server or Gurobi Instant Cl...
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How do I resolve the error 'Constraint has no bool value (are you trying "lb <= expr <= ub"?)'?
There are three primary causes of this error: Trying to add a two-sided constraint Using NumPy scalars on the left-hand side of a constraint Using variables or expressions in if-clauses Trying to a...
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How do I resolve the error "KeyError: 'Missing constraint index'"?
The error message "KeyError: 'Missing constraint index'" appears when you try to add a single constraint using the method Model.addConstrs(). This is used for adding multiple constraints to a model...
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How do I set up a Web License Service (WLS) license?
Web License Service (WLS) licenses allow you to run Gurobi from any internet-connected Windows, Linux, or macOS device. They may be configured to work in containers, outside of containers (in a phy...
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When is distributed optimization useful?
Why Distributed Optimization?Distributed Optimization can be used for: Distributed Concurrent: You can use multiple machines to solve an LP or MIP model. Each machine uses a different strategy to ...
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How do I set up and use a floating token server license?
When using a floating token server license, a program that calls Gurobi Optimizer must obtain a token from a Gurobi token server before it can solve an optimization model.Note: If you are setting u...
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How do I resolve the error "error while loading shared libraries"?
When you run a program that uses Gurobi on some SELinux systems, you may run into the following error message:error while loading shared libraries: libgurobi120.so:cannot restore segment prot after...