How to Set Up an MPI Cluster on Amazon EC2

Glenn K. Lockwood from SDSC writes that setting up a working set of EC2 instances that have the necessary configuration to run MPI applications can be quite daunting, so he has posted a guide.

Most guides online are kind of unhelpful in that they try to illustrate some proof of concept in how easy it is to get a fully configured cluster-in-the-cloud setup using some sort of provisioning toolchain. They gloss over the basics of exactly how to start these instances up and what to expect as far as their connectivity. Fortunately it only took me a morning to get MPI up and running, and for the benefit of anyone else who just wants to get MPI applications running on EC2 with as little effort as possible, here are my notes.

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