Unusually low PPD on project 16927?

Moderators: Site Moderators, FAHC Science Team

bruce
Posts: 20910
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: Unusually low PPD on project 16927?

Post by bruce »

Agreed.

In the cases involving 169xx, the slowest assignments are in the expected range for my hardware. When I happen to get a fast assignment, it's just an extra bonus.
zotric
Posts: 13
Joined: Sat Nov 14, 2020 5:57 pm
Hardware configuration: HOMEBREW
Processor 12th Gen Intel(R) Core(TM) i9-12900K 3.19 GHz
Installed RAM 32.0 GB (31.8 GB usable)
RTX 3080 Ti

LEGION T7 34IMZ5
Processor Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz 3.79 GHz
Installed RAM 16.0 GB (15.8 GB usable)
RTX 3070
Location: London, UK

Re: Unusually low PPD on project 16927?

Post by zotric »

Thanks for the response, Bruce.
As you will see from my update there are unexpected (to me anyway) errors in the log file.
I've stopped using the CPU for now so I've just put in as much information as I can in case anyone finds it useful.
Answers below:
bruce wrote:Yes, WUs from p169xx are highly variable but that doesn't seem to be your real problem.
-- Agreed, I think, based on my subsequent findings and your comments. The logged errors are a puzzle though. Also the fact that the system abandoned the WU.

Where are you looking to see "the advertised number of cores"?
-- I meant the number of threads set in FAHControl

Are you adjusting the number of assigned threads manually? If so, when do you do so? Look back through your logs and determine how many cores were configured by the slot that initiated FAHClient's download of that project?
-- I think I originally started the WU with a low thread count for testing purposes then increased it.

A slot that's configured for 4 CPUs will download WUs that cannot use more that 4 threads. For any slot that's going to download a new WU soon, increase the number allocated to some realistic number that might actually be available.
-- I think the system behaviour is correct. I just did not know that it did this. A case of RTFM?
bruce
Posts: 20910
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: Unusually low PPD on project 16927?

Post by bruce »

I'm not sure I'd call it RTFM, because it's probably not anywhere in a "manual" that's easy to find. Nevertheless, FAHClient tells the server what resources you're offering and it assigns a WU that will run on them (or less).
Post Reply