My college funded me to build this cluster. We managed to build a 70 node cluster over a span of 1 year. I did use the documentation provided by southhampton university for building my Raspberry Pi supercomputer but I faced a lot of challenges due to newer hardware and updated software. We also built an application to demonstrate it’s capabilities. http://sourcedexter.com/6-common-errors-when-building-a-raspberry-pi-supercomputer/ . I had a lot of fun building it. I have made a list of common errors that I faced while I was building it and im sure that this will help many people who are setting out to build this.