GLOP
GLOP is Google's Linear Optimization Package. It is a full-featured, production-ready implementation of the revised simplex method designed for performance and numerical stability in solving linear programming problems.
It's written in C++ but can also be used from Java, Python, or C# via our linear solver wrapper.
It contains in particular:
parameters.proto: Contains the definitions for all the GLOP algorithm parameters and their default values.lp_solver.h: Contains the primary entry point classLPSolver.preprocessor.h: Contains the presolving code for a Linear Program.revised_simplex.h: Contains the core implementation of the revised simplex algorithm as described by G.B. Dantzig.status.h: Return type for various solver functions.