Archives for May 2014

Building the perfect MIPping machine [dual]

Yesterday’s post explained why I prefer to run solver on fast machines over big machines and gave a short example why. In today’s post, I provide some very personal guidelines on how to determine what kind of machine you might need to solve MIPs.  Beware: this post is more based on personal experiences than hard […]

Do you need a bigger computer to solve this MIP? [primal]

When I have difficult time solving a mixed-integer optimization problem (MIP), one of the most common reflexes is to run the problem on a bigger or faster machine.  However, when solving MIPs, throwing more processor power at a problem will not necessarily result in a better solution. Different models require different resources to solve. Overall, using a […]

Things you learn in a Ph.D. that are not written in textbooks

Those are things I learned during the first phase of my experimentation over the course of my Ph.D (year 2 of 4) There is a story behind each of this statements; I may blog about some of them if there is interest in it and I find the time to write that. Please note that some of […]

There and back again

If your academic work is related to computation, chances are that once in a while you have to scrap a set of experiments and start over. It just happened to me again about two weeks ago. While I and a colleague were doing what is mostly a computation project, we discovered that one constraint was incorrectly […]