Archives for October 2015

Facility location : not so difficult (with the proper tools)

In a previous post, I generated a few capacitated facility location instances (CFLP) and I ran these through MIP solvers. The instances were solved pretty quickly overall. In a comment, professor Matteo Fischetti suggested I compare my results with some instances from the literature, which I did. Overall, the results are quite fast; CPLEX takes only 21 […]

Facility location : mistake, issue and results

About two weeks ago, I generated a few capacitated facility location instances (CFLP) for some students to play with. When I ran these through the CPLEX and Gurobi solvers, all of them were solving very quickly. Gurobi in fact seemed to find the optimal solution during the presolve stage. I made a quick blog post […]