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Multiple clients completing the same WU

Posted: Thu Apr 03, 2025 12:30 am
by bikeaddict
Here are some WUs that four clients completed in the same day. The project has a timeout of two days. This looks like something malfunctioning and reassigning the WU way before it times out. It's a waste of computing resources to do the same work multiple times.

https://apps.foldingathome.org/wu?p=182 ... =1&gen=157
https://apps.foldingathome.org/wu?p=182 ... =3&gen=195

It would be easy to see how many more there are in your database with a query of WUs with code=Ok, date(assigned) = date(returned) that groups by PRCG and having count(*) > 1

Re: Multiple clients completing the same WU

Posted: Thu Apr 03, 2025 4:54 am
by muziqaz
That is probably dynamic timeout feature at play.
If I tried again to argue of its removal as a default with the main fah dev, I would probably get banned :D

Re: Multiple clients completing the same WU

Posted: Thu Apr 03, 2025 5:10 am
by arisu
What is the dynamic timeout, and how does it work?

Surely setting a floor that the dynamic timeout cannot go below would help.

Re: Multiple clients completing the same WU

Posted: Thu Apr 03, 2025 5:44 am
by muziqaz
Dynamic timeout is a "wonderful" feature which adjust timeout automatically depending average return rate for the project, or something like that. It was enabled during COVID where it really worked. But not anymore
I asked researcher to check if that is the cause and to disable it

Re: Multiple clients completing the same WU

Posted: Sun Apr 06, 2025 2:19 pm
by toTOW
This feature made sense when it was designed during the COVID surge. With more compute power available than work, it allowed FAH to get faster returns by shortening the wait before reassigning work.

But it's completely useless now we have more work available than compute power to complete it ...

Re: Multiple clients completing the same WU

Posted: Mon Apr 07, 2025 4:48 am
by arisu
toTOW wrote: Sun Apr 06, 2025 2:19 pm This feature made sense when it was designed during the COVID surge. With more compute power available than work, it allowed FAH to get faster returns by shortening the wait before reassigning work.

But it's completely useless now we have more work available than compute power to complete it ...
I thought it was the other way around and there were shortages. Or is that only for GPUs?

Re: Multiple clients completing the same WU

Posted: Mon Apr 07, 2025 4:50 am
by muziqaz
Recent shortages were a blips. There is no shortage anymore

Re: Multiple clients completing the same WU

Posted: Mon Apr 07, 2025 5:03 pm
by Frogging101