OR-Tools
Open source software suite by Google

Google OR-Tools is a free and open-source software suite developed by Google for solving linear programming (LP), mixed integer programming (MIP), constraint programming (CP), vehicle routing (VRP), and related optimization problems. OR stands for operations research.
OR-Tools is a set of components written in C++ but provides wrappers for Java, .NET and Python.
It is distributed under the Apache License 2.0.
01History
OR-Tools was created by Laurent Perron in 2011.
In 2014, Google's open source linear programming solver, GLOP, was released as part of OR-Tools.
The CP-SAT solver bundled with OR-Tools has been consistently winning gold medals in the MiniZinc Challenge, an international constraint programming competition.
02Features
The OR-Tools supports a variety of programming languages, including:
- Object-oriented interfaces for C++
- A Java wrapper package
- A .NET and .NET Framework wrapper package
- A Python wrapper package
OR-Tools supports a wide range of problem types, among them:
- Assignment problem
- Linear programming
- Mixed-integer programming
- Constraint programming
- Vehicle routing problem
- Network flow algorithms
It supports the FlatZinc modeling language.
Sources and credits
This article is adapted from the Wikipedia article “OR-Tools”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- OR-Tools Logo.png by Google, CC BY 4.0
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