Message boards :
Number crunching :
WU crunched strangely to fast and got validated!
Message board moderation
Author | Message |
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Ledo Send message Joined: 4 Jul 99 Posts: 55 Credit: 918,136 RAC: 0 |
I found an odd completion time for a WU while checking my results! A p4 2.4 HT enabled with benchmarks superior than my 3.2 using Linux crunched a WU in 9 min. while i took 1H:17min! That's an awesome optimized client or there is a bug on this validation and the result shouldn't been validated? http://setiathome.berkeley.edu/workunit.php?wuid=27541108 |
John McLeod VII Send message Joined: 15 Jul 99 Posts: 24806 Credit: 790,712 RAC: 0 |
It is entirely possible that they hit the bug where after a restart, the previous CPU time disappears permanently. It is believed that this has been fixed recently. BOINC WIKI |
michael37 Send message Joined: 23 Jul 99 Posts: 311 Credit: 6,955,447 RAC: 0 |
First, John McLeod is right. This user has 4.19 version of Boinc. So, in fact the P4HT got less CPU time and credit that it deserved. Second, the client being used is described here: http://setiathome.berkeley.edu/forum_thread.php?id=19865 Enjoy. |
J D K Send message Joined: 26 May 04 Posts: 1295 Credit: 311,371 RAC: 0 |
The only thing I saw on his acct was a bunch of -9s noisy WUs oppps wrong acct;o) And the beat goes on Sonny and Cher BOINC Wiki |
Ledo Send message Joined: 4 Jul 99 Posts: 55 Credit: 918,136 RAC: 0 |
Thanks for the info! I posted this thread only to know more how the system works! |
Ricky@SETI.USA Send message Joined: 4 Sep 04 Posts: 453 Credit: 1,586,857 RAC: 0 |
Thanks for the info! I posted this thread only to know more how the system works! I just had a downloaded WU that took 23 sec and then uploaded and got validated and the following was on the WU: <core_client_version>4.45</core_client_version> <stderr_txt> SETI@Home Informational message -9 result_overflow NOTE: The number of results detected exceeds the storage space allocated. </stderr_txt> Is this a computer error or what? I just started using this PC so I want to be sure it's setup is correct. BTW this is the same PC i been trying to put SP2 on and if you look you will see i was once again unable to :( Ricky |
Octagon Send message Joined: 13 Jun 05 Posts: 1418 Credit: 5,250,988 RAC: 109 |
Thanks for the info! I posted this thread only to know more how the system works! Message -9 means that the work unit had so many signals detected in it that the whole work unit is probably overwhelmed by terrestrial interference. It took your PC 23 seconds to detect more 'candidate signals' than an entire typical work unit. Such work units are called 'noisy' work units. If the others who crunch that work unit return similar errors, then all of you will get credit for the small amount of time it took to crunch the unit (there is scientific value to eliminating that work unit; it just doesn't represent a lot of actual work). No animals were harmed in the making of the above post... much. |
Mike Send message Joined: 17 Feb 01 Posts: 34258 Credit: 79,922,639 RAC: 80 |
Thanks for the info! I posted this thread only to know more how the system works! [/quote] Hi Thats no error from your side. This WU just have to much noise in it so the app see no worse and finnished. There are a lot of this noise results, i have about 5 - 10 a day. greetz Mike [/quote] With each crime and every kindness we birth our future. |
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