The problem is that you are marking the result as invalid. This is a signal to the system to try again. Invalid does not mean a negative result, it means the result failed to compute correctly.
-----Original Message----- From: boinc_dev [mailto:[email protected]] On Behalf Of Slawomir Rzeznicki Sent: Tuesday, March 12, 2013 7:56 AM To: BOINC_dev Subject: [boinc_dev] Quorum 1, multiple results spawned Hello, Recently I've ran into a problem at Enigma@Home. The project uses quorum = 1, the other result settings are: minimum quorum 1 initial replication 1 max # of error/total/success tasks 3, 10, 6 Everything is fine until the server receives a success result which is then marked as invalid by the validator. The validator leaves the outcome at RESULT_OUTCOME_SUCCESS and sets validate_state to VALIDATE_STATE_INVALID. The result is then marked as 'Completed, marked as invalid' just like I want. The problem is that the validator bumps the target_nresults by 1 which results in spawning two results instead of one. Now theoretically it's not a problem, here at Enigma@Home each result runs on it's own and it doesn't really matter if I use 1 workunit -> 1 result or 1 workunit -> many results (I use 1:1 mainly because it makes validation easier). However due to random host turnaround times, some of the 'bonus work' will be cancelled by server (if one of the hosts is way faster and the other one contacts the server) or, what's worse, it will be wasted if the other host does not contact the server for a long period of time. The source of the problem is in validator.cpp line 586: // if #success results >= target_nresults, // we need more results, so bump target_nresults // NOTE: nsuccess_results should never be > target_nresults, // but accommodate that if it should happen // if (nsuccess_results >= wu.target_nresults) { wu.target_nresults = nsuccess_results+1; transition_time = IMMEDIATE; } Just for test I commented these lines and the problem is gone. Does it count as a bug, at least when the project uses quorum = 1 ? Regards, Slawomir Rzeznicki http://www.enigmaathome.net _______________________________________________ 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.
