[srean]

Thanks for the information. Very interesting. IBM of course is the owner of CPLEX one of the famous LP solvers.

I still hold out hope that the likes of Gurobi or CPLEX would be replicated by open source or they themselves would be open sourced. There is GLPK, but from what I hear and read its performance is not at par. There is Glop by Google but have not tried it.