SONNET builds on top of the well-known COIN libraries for optimisation (see http://www.coin-or.org). It brings the power of (integer) linear programming projects of COIN to .NET.

SONNET is licensed under the terms of the Eclipse Public License (EPL).

SONNET consists of two parts:

1) A .NET library that consists of .NET wrapper classes around existing COIN classes such as OsiSolverInterface.

2) A .NET library implemented in C# that adds a powerful (rudimentary) modelling API with classes like Model, Constraint, Variable, Expression, etc, and overloaded operators to allow for things like

Model model = new Model();

Variable x = new Variable();

Variable y = new Variable();

model.Add(2 * x + 3 * y <= 10);

model.Objective = 3 * x + y;

Solver solver = new Solver(model, typeof(OsiClpSolverInterface));

solver.Maximize();

Console.WriteLine(solver.ToSolutionString());

Features

  • Linear programming in .NET
  • Build large models (>100K variables and constraints)
  • Near-algebraic formulations

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Registered

2011-11-16