If you want to get more performance out of a cluster like this you can look at my distributed HTTP app. server + JSON database solution: https://github.com/tinspin/rupy
It's actually usable for live services on RPi 2 and on RPi 4 it beats Intel on float ops./joules at 100% utilization.
And if you use multicast UDP you can make these behave cooperatively to scale horizontally beyond what's possible with a vertical solution at a fraction of the purchase/maintenance cost.
It's actually usable for live services on RPi 2 and on RPi 4 it beats Intel on float ops./joules at 100% utilization.
And if you use multicast UDP you can make these behave cooperatively to scale horizontally beyond what's possible with a vertical solution at a fraction of the purchase/maintenance cost.
I think we are peaking at 2 Gflops/watt for CPU, so if you need silence (passive cooling) and small size this is as good as it will get, probably ever: http://talk.binarytask.com/task?id=8015986770003767235
I'm building a RPi 4 cluster with these heatsinks.