I have an integer linear optimisation problem and I'm interested in feasible, good solutions. As far as I know, for example the Gnu Linear Programming Kit only returns the optimal solution (given it exists). This takes endless time and is not exactly what I'm looking for: I would be happy with any good solution, not only the optimal one.
So a LP-Solver that e.g. stops after some time and returns the best solution he found so far, would do the job.
Is there any such software? It would be great if that software was open source or at least free as in beer.
(Alternatively: Is there any other way that usually speeds up Integer LP problems? Is this the right place to ask? I parallely asked the question on http://stackoverflow.com/questions/7671124/is-there-an-integer-linear-programming-software-that-returns-also-non-optimal-sol.)