OR-Tools

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.

History

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.

Features

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.

See also

• COIN-OR
• CPLEX
• GLPK
• SCIP (optimization software)
• FICO Xpress
• MOSEK

References

Bibliography

External links

• Source code
• Video introduction to OR-Tools