Folding Forum

Just got sent another duplicate on 17403:

Project:17403 run:0 clone:1930 gen:3

https://apps.foldingathome.org/wu#proje ... 1930&gen=3

Looks like I'm the sixth to have received this (albeit two prior users returned it as "Faulty 2")

Since 2 of them are reported as faulty, it would generate 4 copies in total, 2 for each report.

Ah, so each time a WU is returned as Faulty, it automatically triggers two copies to be sent out as a verification process of sorts, even if there's already a successful completion on file? Is this expected behavior?

AFAIK, it's the expected behavior and the limit is 5 faulty returns will cause the WS to stop issuing any additional copies of that WU. The value of 5 is the default and might be changed by researchers depending on their needs but this is rarely changed from the default.

Why is this the expected behavior?
Shouldn't we recommend it be changed?

Last night, a little after halfway through this WU (I believe it was at about 54% or so) the client went berserk, immediately advancing to 99.99% with an ETA of "Unknown" and showing something like 4.2 billion for the estimated PPD. There was nothing in the logs about it, it's as though it just stopped recording immediately before this happened. I ended up killing it (had I restarted it from scratch, it wouldn't have finished in time anyway) when it became clear that it was not going any further. The client downloaded and started a new WU and it appears to be working fine now.

questioning this "expected behavior" - https://apps.foldingathome.org/wu#proje ... e=9&gen=51
time will tell if we see the same things

"berserk" is not the expected behavior, of course but we don't really have enough information to diagnose what actually happened.

bruce wrote:Why is this the expected behavior?
Shouldn't we recommend it be changed?

I guess it is expected behavior because it is a legacy decision.

There's two options to think about:
1) Prevention of Duplicated WUs:
If a WU returns Faulty result, send out 1 additional copy. This is capped to 5 by default (unless changed in the Project).

2) Fastest Science Advancement (Current behavior):
If a WU returns Faulty result, send out 2 additional copies. Terminate WU assignment once you have 5 Faulty results. This is capped to 5 by default (unless changed in the Project).

Personally, I would like both options to be implemented with the default being #1 while #2 can be set on certain time sensitive Projects (Moonshot, etc.)

midhart90 wrote:...the client went berserk, immediately advancing to 99.99% with an ETA of "Unknown" and showing something like 4.2 billion for the estimated PPD. There was nothing in the logs about it, it's as though it just stopped recording immediately before this happened...

When it happens again, please capture screenshots and file an issue (using the template) with as much information as possible: https://github.com/FoldingAtHome/fah-issues/issues