Exactly the same phenomenon happens when there *are* files to upload. Task finishes : cache recalculated with new DCF : shortfall found : work fetch issued : result upload starts : scheduler contact complete : upload complete : another scheduler contact needed later.
That's what we were trying to get across in http://boinc.berkeley.edu/trac/ticket/728, but the discussion got sidetracked into a non-existent bug allegation concerning reporting before upload complete. ----- Original Message ----- From: "Rytis Slatkevičius" <[email protected]> To: "BOINC Developers Mailing List" <[email protected]> Sent: Saturday, September 12, 2009 9:19 AM Subject: [boinc_dev] Multiple sched requests with no output files > Hello all, > I'm working on a project which is non-cpu-intensive and does not have > result > files (instead, all network communication is done by the app itself). This > causes an interesting phenomenon when a workunit finishes: > > *20:29:27 AProject Computation for task pinger_15571_0 finished > 20:29:27 AProject Sending scheduler request: To fetch work. > 20:29:27 AProject Requesting new tasks > 20:29:32 AProject Scheduler request completed: got 1 new tasks > 20:29:35 AProject Starting pinger_15796_0 > 20:29:35 AProject Starting task pinger_15796_0 using pinger version 103 > 20:29:43 AProject Sending scheduler request: To report completed tasks. > 20:29:43 AProject Reporting 1 completed tasks, not requesting new tasks > 20:29:48 AProject Scheduler request completed* > > As you can see, a task finishes and immediately a scheduler request is > done, > because there is no more work in the queue, however, the WU that has > finished hasn't yet reached ready_to_report state, so it is not reported. > Instead, it is reported on a separate sched request, as soon as the first > scheduler request (to fetch new work) is completed. > > This would be fine if we were doing file uploads, because then the > workunit > would not be ready_to_report until the file upload was complete, but in > this > case there is no file upload. > > Tested with 6.2.19, 6.6.36, 5.10.45 - same issue, although it does not > always manifest itself. Some users have it more often, some don't at all. > > -- > Rytis Slatkevičius > +370 670 77777 > ICQ 270359185; MSN [email protected]; GTalk [email protected]; Skype > rytis.s > (text only) > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. _______________________________________________ boinc_dev mailing list [email protected] http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
