Matthias Miltenberger

Providing an initial feasible solution to Gurobi can help reduce the overall solve time (but there is no guarantee). A MIP start can be provided either by using the Start variable attribute or by l...

Sometimes presolve removes all rows and columns of a problem. When this happens, the log will print the message "Presolve: All rows and columns removed".The message means all constraints have been ...

Affected versions: v9.0.x, v9.1.x, v9.5.0, v9.5.1, v9.5.2, v10.0.0, v1 0.0.1 , v10.0.2Resolved in version: Gurobi v10.0.3IssueThe R language uses a pattern-matching system that might conflict with ...

When adding user cuts via a callback to Gurobi, you should disable certain dual reductions during the presolving phase. This is to ensure that the cuts can be transformed to the presolved model. Pl...

As of Gurobi version 12.0.0, a number of parameters that control the termination criterion of different algorithms in Gurobi Optimizer can be modified within the callback. The list of parameters in...

Gurobi can be used in WSL2. You have two options outlined below to get set up with your Gurobi license.Option 1: Using a floating Gurobi license [Recommended] The most accessible options are  conn...

CMake is a platform-independent build system to compile C/C++ code. To link Gurobi to your project, you can extend the template files attached to this article, which consists of the following: Fin...

Gurobi comes with a command-line tool for development and experimentation. Since this type of workflow is not common on Windows systems, we want to help users who are not yet comfortable in such an...

Affected versions: v9.0.0, v9.0.1, v9.0.2, v9.0.3Resolved in: v9.1.0IssueSometimes the Runtime attribute incorrectly returns 0 after optimizing. This is due to a known issue with calling model.upda...

We want to make the C++ API compatible with as many different compilers and compiler versions as possible. For that reason, we provide source files for the API so you can build the library yourself...