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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Errors that affect reliable computers |
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Thread Status: Active Total posts in this thread: 2
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I believe that the server cannot differentiate between the causes of Errors? I note that a reliable computer must have the last 15 results valid. We have had big problems where lots of errors were returned for a project for a while, so every computer returning an error would be removed from the Reliable computer list until at least another 15 valid results were returned.
The recommendation to uncheck HPF2 until the problems were resolved are extremely important. As long as the system still has enough Reliable computers to handle the Rush jobs I guess there is no problem. Theoretically the number of Reliable computers could drop dramatically since they commonly have short connect times, small buffers and multiple cores, all of which serve to increase the negative impact of a single error returned. |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
The importance that individuals attach to "reliable" in order to get "rush" jobs is severely overrated. No special credits are awarded for processing them. The ratio of success and failure in the daily total of ~235,000 tasks distributed is so small that WCG has no trouble at all to find devices to process "rush/repair" jobs even with the 21 hour rule that has been standing for quite some time.
----------------------------------------That said, yes WCG does know what's a result of one or the other error, yesterday "Aborted" added as condition to the Result Status page conditions (you see them only when you did abort/cancel jobs.... they are currently included in the "error" filter). Aborts happen for various reasons like "project detach/attach" same as WCG instructing remotely, upon client initiated contact, if a job is redundant, so it is taken into consideration when e.grating devices. Eventually, the techs do reset device ratings if found incorrect due to 'exceptional' events and circumstances, so all in all nothing to worry about. cheers
WCG
----------------------------------------Please help to make the Forums an enjoyable experience for All! [Edit 2 times, last edit by Sekerob at Sep 25, 2008 3:30:58 PM] |
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