Notes and such about building a Raspberry PI cluster
This started as a simple 4 PI3 cluster, then I heard about ClusterHat (http://clusterhat.com/). This is a hat for the PI3 that allows for 4 Pi Zeros to be installed on a PI3. How could I resist?
So the PI3 is: A 1.2GHz 64-bit quad-core ARMv8 CPU with 1GB RAM, 802.11n Wireless LAN, Bluetooth 4.1, and Bluetooth Low Energy (BLE)
The Pi Zero is 1Ghz, Single-core CPU with 512MB RAM
So clearly the Pi Zeros won't add much to the mix. An additional PI3 probably would have provided more power, but this isn't about building a massive supercomputer. It is about playing with stuff.
In the end I end up with a whopping 20 cores, 6GB of RAM, and about 256GB of storage.