Cluster Computing brings the power of multiple computing units to serve one single purpose. If you are looking for some performance boost and you got yourself some freely available computing units, cluster computing might be what you need. Unfortunately, building yourself one is not that a smooth ride and might be overwhelming for the average newbie.
Raspberry Pi is one of those single-board computers you can easily find around, and most importantly, they are quite affordable and they do it great in the performance department as well. At $5, the Raspberry Pi Zero is even an unimaginable margin with the 1GHz processor, there so much more you can do with it. Imagine packing multiples of the Pi Zero to build a single unit computer, not only will you have a way powerful computing unit (power is relative though ), but also at ultra-low-cost. Thanks to Cluster Hat, you can quickly build a cluster computing infrastructure leveraging on the Raspberry Pi Zeros and any of the major Raspberry Pi as the host or controller.
Cluster HAT leverages the flexibility of Raspberry Pi and the ever-growing maker movement by allowing hackers, engineers, students, makers, and enthusiasts to experiment with cluster computing. Building your cluster computer enables you to explore things like big data computing and others.
The Cluster HAT acts as an interface between a (Controller) Raspberry Pi A+/B+/2/3 with 4 Raspberry Pi Zeros. It leverages the USB Gadget mode as the form of interface. The HAT is compatible with any of the major Raspberry Pis, but nothing sure about the newly released Raspberry Pi 4.