14th of February

Marks Rpi Cluster is back and running after a 3 week weather-induced break. We're back to running Einstein@home BRP4 work on all the compute nodes. Understandably my recent average credit has taken quite a hit with the cluster being off for so long.

The cluster just powered up as normal and I went through each node and applied OS updates and rebooted them before resuming computing.

Einstein have a bunch of new BRP4 work units with "guppi" in the work unit name. We saw these previously at Seti@home. According to a message board post from 2016 it may stand for Greenbank Ultimate Pulsar Processing Instrument. As to when the observations were made we can't tell from their name.

I noticed the Asteroids@home project has come back online. Their server crashed over a year ago and had to get new hardware. It would appear they've been back since November 2022. The work using are used to compute the shape of asteroids using a light-curve method. They have released a ARMv8 app which the Pi's can run (they had a 32 bit app previously). They also have x86 and Cuda apps. I've attached a couple of Pi's to the project and have them computing now. Its looking they take 6 hours per work unit when running 4 at a time and they only use 9MB of memory.