SYMPHONY 5.6

SYMPHONY is an open-source solver for mixed integer linear programs written in C. It can be used in four different main modes:

- As a callable library through either the native C interface or through the Osi.

- As an interactive solver using a command-line interface.

- As a framework to build customized solvers for specific problem classes.

- Through a number of different modeling languages: AMPL, GMPL, GAMS, PuLP (see below).

SYMPHONY can be executed in either parallel (distributed or shared memory) or sequential modes and has a number of advanced features that make it unique, including the ability to

- solve biobjective MILPs,

- warm start the solution procedure, and

- perform basic sensitivity analyses.