25 June 2023

25th of June

Farm status
CPU only
Running Einstein BRP4G work overnight.

Nvidia GPUs

Raspberry Pis
Running Asteroids@home and Einstein.

New CPU only build
I've ordered parts to make a couple of CPU only machines to replace the Ryzen 5900X's. The new ones are Ryzen 7900, 64GB of DDR5-5200 memory, 2TB WD Black M.2 and an ASUS Prime B650 motherboard. I'll reuse the existing case and power supply.

The main reason for the upgrade is they have a 65 watt TDP, which should reduce my power bills a little. I was originally looking at the Ryzen 7900X but they have a 170 watt TDP which is more than the current machines. I expect it will take a week or two for parts to arrive.

I was going to get my regular online shop to build it but when I added an after market CPU cooler their website decided to charge me another $50 for assembly. I complained but they were unwilling to reduce the build price. It already had a CPU cooler so its not really an extra part to assemble. In the end I decided to assemble it myself and save the cost of a new case and power supply as well. This will be my first AM5 build.

Milkyway no longer using GPU
The Milkyway project have finished their research using the Separation GPU app and decided to stop using it. They will publish their findings in due course. They still have a multi-threaded Nbody CPU app (it uses up to 16 cores). That means they only have a CPU based app so I added Milkyway to the CPU only crunchers and removed the project from the Nvidia GPU machines.

12 June 2023

12th of June

Farm status
CPU Only
Two Ryzen 5900X running Einstein work.

Nvidia GPUs

Raspberry Pis
Running Einstein BRP4 work.

Debian 12 (Bookworm) release
The Debian project released their latest version of the operating system. Early signs were promising when I tested the beta version. At the moment I can't install the Nvidia drivers (which worked fine on the beta). There were 150 known bugs when they released on the 10th of June. The CPU only machines have been updated without any issues. I think the problem is the drivers are still listed as part of the testing release as a search for package nvidia-kernel-dkms on debian.org lists the (older) Bullseye version as being stable, however we are now on Bookworm.

Ntp is no longer included, they've switched to using systemd-timesyncd instead. If you try to install ntp it will install ntpsec instead. I was already using ntpsec on some machines so switching to it wasn't an issue for me.

Pi Hole doesn't work. It comes up and says Bookworm is an unsupported operating system when you try to install so we will need them to provide an updated version.

Raspberry Pi OS despite using the 6.1 kernel that Bookworm is using is still based on Debian Bullseye, so it needs updating.

Electricity prices
Electricity prices are going up on the 1st of July by approx 20-25% so I probably won't be using the Nvidia GPU machines much. I still need to organise replacements for the Ryzen 5900's as well. I think the replacements should use less power.

Update 13 June 2023
Pi Hole has been updated and now supports Debian 12 (Bookworm).

Update 17 June 2023
I worked out why the nvidia-driver wouldn't install. It seems parts of it are in the non-free archive, which I had selected via /etc/apt/sources.list, but other parts are in the contrib archive. It will install if you have both listed but not if you only have one of the them.