We're still here. The cluster is working when the weather permits. Its been hot and for the last week its also been raining quite heavily.
Last week saw Rosetta out of work and Einstein ran out of BRP4 work. The Pi3s which only do BRP4 work were idle. The Pi4's filled up on Gamma Ray work which is quite demanding. I should really limit them to 2 at a time to try and speed them up. They typically take up to 27 hours if I run them on all 4 cores. I believe they are competing for memory access and the Pi4 doesn't have a particularly fast memory sub-system.
Update: 27 Feb 2022
Well that didn't work out. I setup 4 of the Pi4's to run a maximum of 2 of the Gamma Ray work units at a time. Unfortunately due to a bug in the BOINC client two of the machines decided to continuously request work until I noticed they had about 4 weeks worth accumulated. Einstein@home tasks have a 2 week deadline. I ended up aborting a bunch of work units and removing the change rather quickly.
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