Josh Kiepert built this Raspberry Pi Cluster while at the Electrical and Computer Engineering department at Boise State. He didn’t want to rely on the stability of the Beowulf cluster at the university while working on his doctoral research so he decided to build his own using 33 Raspberry Pi computers. He has stacked them wired them with a custom power interface so that he can keep the power lines to a minimum, although each system still has an Ethernet cable running out the back of the enclosure.
“I had need of a cluster to run a distributed simulation I’ve been developing. The RPiCluster is the result. Each RPi is overclocked to 1GHz and is running Arch Linux. This demo shows the RPiCluster running a parallel program I developed using MPI to control all of the RGB LEDs installed on each of the nodes.”