FAHClient idle on highend systemg (eg. 128 cpu cores)

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dreamax
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Joined: Sat Mar 21, 2020 5:52 pm

FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by dreamax »

Hi all,

I'm running the FAHClient on some highend Linux machines, eg.

Dual AMD Epyc 7742 (128 cores / 256 threads)
Dual Intel Xeon Platinum 8280 + 8x NVIDIA Titan RTX.

After about 3 hours of processing WUs all CPU cores and 2-3 GPUs are idle for more than 24 hours.

Log messages are always:
WARNING:WU04:FS08:Failed to get assignment from '65.254.110.245:8080': No WUs available for this configuration
Is this normal behavior? This way the operation doesn't make any sense to me.

-dream
foldy
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Re: FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by foldy »

Servers cannot yet deliver enough work units for the high demand.

As alternative you could run BOINC Rosetta Corona-Virus work units for CPUs and GPUgrid.net work units for GPUs
Joe_H
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Re: FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by Joe_H »

On the CPU side you may need to run multiple slots to partition the available CPU cores to get WU's, only some projects support large numbers of CPU threads.

Also when F@h got all the free publicity a week ago they were still in the process of creating projects for COVID-19. They were farther along on the GPU side, more projects are in the works of r CPU processing and should be out soon.
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JimboPalmer
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Re: FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by JimboPalmer »

Welcome to Folding@Home!

If it was me and I had 256 cores to fold on I would divide them into 16 Slots of 16 threads each.
It is up to the researcher to specify how many CPUs their project can fold on, and I am unaware of any that allow 256 threads. (How would I know, my PCs have 4 threads?)

If that works try 8 of 32 threads, then 4 of 64 threads. At some point, I bet you quit getting work, just a lack of imagination of the part of the researchers.

Best of luck, more science is better science!
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Kebast
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Re: FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by Kebast »

I think cpu jobs are just hard to find still at this point. My cpu has been 90% idle for the last week. I've tried 8,12,16 threads, still no jobs. GPUs have been folding non-stop for a few days now though.
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Jesse_V
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Re: FAHClient idle on highend systemg (eg. 128 cpu cores)

Post by Jesse_V »

Kebast wrote:I think cpu jobs are just hard to find still at this point. My cpu has been 90% idle for the last week. I've tried 8,12,16 threads, still no jobs. GPUs have been folding non-stop for a few days now though.
Yeah. The research teams are rapidly trying to get more projects and especially more COVID-19 projects into the queue to keep up with the overwhelming demand. I'm hoping the situation should clear up in the next couple of days.
F@h is now the top computing platform on the planet and nothing unites people like a dedicated fight against a common enemy. This virus affects all of us. Lets end it together.
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