23 February 2020

23rd of February

Farm status
Intel GPUs
All off

Nvidia GPUs
Had all of then doing Einstein and Milkyway work

Raspberry Pis
All running Einstein BRP4 work

For news on the Raspberry Pis see Marks Rpi Cluster

Other news
I had a couple of wins this week. Firstly I managed to get Debian Buster to work on the Nvidia GPU machines and second I got some work from GPUgrid after almost a year of not processing anything from them.

While it may seem to be a repeat of my last post, after getting the upgrade to Buster working I went and wiped the machine and re-did it. That failed again. Then the 5.4.13 kernel got released which seems to have got it going again.

Debian Buster
There were two issues with Debian Buster.

The 4.19 kernel locks up at boot time due to needing entrophy. That was addressed by none other than Linus Torvalds in the 5.4.8 kernel. The buster-backports repo has the 5.4.13 kernel as I write this.

The other was the need to explicitly install the nvidia-driver package to be able to display in the monitors native resolution otherwise the desktop its stuck at 1024x768. Once installed it will display properly. This didn't need to be done under Stretch.

GPUgrid work
GPUgrid have been trying different apps in order to get one that would work with modern graphics cards (ie the Turing architecture). It has taken them almost a year to sort out. They now have a large batch of work that uses the new app.

The download was huge, one of the many files is 100MB but after you have got it on the machine it doesn't need to download them again. Once running they immediately take the GPU up to 99% load and its power cap (120 watts on my GTX1660Ti cards). Run time is around 90 minutes on the GTX1660Ti. You'll need a CUDA 10.0 or a later driver to be able to run them.

Seti woes
Dispite the recent fund-raising drive to replace the hard disks in their database server they're still having issues with supplying enough work due to the database not fitting into memory. It was suggest years ago that they should shorten the deadlines but they haven't tried that yet. Generally I can't get work from them so have been concentrating on other projects.

Also in the news this week was Breakthrough Listen released 2PB of data, most of which we don't process at all. They're being handled by the Seti institute which is not related to the Seti@home project.

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