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World Community Grid Forums
Category: Completed Research
Forum: The Clean Energy Project - Phase 2 Forum
Thread: Tasks are not checkpointing proporly |
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Thread Status: Active Total posts in this thread: 54
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RaymondFO
Veteran Cruncher USA Joined: Nov 30, 2004 Post Count: 561 Status: Offline Project Badges: 
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Sekerob,
Its not so much as new users, it is also "older" users whose computers for some unknown reason just decide to consistently produce these types of results. Under the System Monitor Resources tab, what would cause a the CPU usage for computer one core to go from 100% then down to 32%, then proceed to go up to 46%,56%,86%, and then back up to 100%? The "While processor usage is less than" setting in BOINC is set to 0% (no restriction), and the computer is not being actively engaged. Please note CEP2 is not being crunched and multiple and different WU's are being processed while this occurs. Replacing the hard drive and installing Unbuntu 10.4 LTS 64bit version had similar results with CEP2 efficiency issues, and the processor utilization description noted above. Any ideas or suggestions? |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Looking at the daily Hours per job averages, something may have happened in Linuxsphere on October 3/4, but what? The Result logs are quite specific in that there are no continuous restarts from a checkpoint, rather specifically CPU time is not being passed, but why is this hitting one and not the other? Quorums show both Result logs identical, one with an extraneous short time, the other with normal time i.e. the results compute correctly.
----------------------------------------100% score here on: - Lucid Lynx 10.04.1 64 bit LTS (kernel 2.6.32.25) - BOINC 6.10.58 sourced from GetDeb ppa, 64 bit. - No hyperthreading (not able). - Q6600, stock
WCG
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I just want to add that I'm getting similar problems as posted in this thread. I am running Ubuntu 10.04 LTS, with BOINC version 6.10.58. When I press "Pause" then "Resume" the progress goes down to almost the beginning. I have checked the "Leave Applications in Memory" box, and this problem goes away for me (at least, for the time being).
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
When LAIM is selected, as per recommendation, footnote 4 of the System Requirements page, then it should be longer than "for the time being". I've as yet not seen suspend retreats when that option is active except only when extraneous system loads cause timeout/heartbeat issue and the tasks are restarted!
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WCG
Please help to make the Forums an enjoyable experience for All! |
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