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World Community Grid Forums
Category: Completed Research
Forum: The Clean Energy Project - Phase 2 Forum
Thread: Not receiving CEP2 tasks |
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Thread Status: Active Total posts in this thread: 47
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Eric_Kaiser
Veteran Cruncher Germany (Hessen) Joined: May 7, 2013 Post Count: 1047 Status: Offline Project Badges: 
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Same here.
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Gatchaman
Cruncher Joined: Feb 29, 2012 Post Count: 49 Status: Offline |
The well has dried up again......
----------------------------------------My machines are running on fumes! :-) 2810 World Community Grid 09/09/2015 14:24:31 Sending scheduler request: To fetch work. 2811 World Community Grid 09/09/2015 14:24:31 Requesting new tasks for CPU 2812 World Community Grid 09/09/2015 14:24:33 Scheduler request completed: got 0 new tasks 2813 World Community Grid 09/09/2015 14:24:33 No tasks sent 2814 World Community Grid 09/09/2015 14:24:33 No tasks are available for the applications you have selected. 2815 World Community Grid 09/09/2015 14:24:33 Tasks are committed to other platforms ***************** As of 14.54 GMT my work PC has been fed some work units!  "Sadly this project is turning into nonscience......" [Edit 4 times, last edit by Gatchaman at Sep 9, 2015 2:02:33 PM] |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges: 
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Yes, it is intermittent for me too on four machines. I got CEP2s last evening (12 hours ago here) on a couple of machines, but anything this morning has been the other projects. I wonder if it represents a shortage of work, or just a glitch in distribution?
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Seoulpowergrid
Veteran Cruncher Joined: Apr 12, 2013 Post Count: 823 Status: Offline Project Badges:
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I've been focusing on MCM before that project ends and now starting up CEP again. I noticed 4 of the 6 WU my Mac got failed as did 1 on a PC box. Are people seeing more failures or is this a fluke I got? If it is common then it might explain why there is a lack of WUs.
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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Are people seeing more failures or is this a fluke I got? On four machines (about 16 cores at any one time), I get only about one error every couple of days, so I don't think that is the problem.But I am wondering about the the WCG Settings. Sometimes they get messed up. All my machines are nominally set to receive CEP2 only, and to accept the other work only if CEP2 is not available. But that seems to be honored on a couple of machines more than the others. Maybe I will try changing things around to straighten it out, but I hope that IBM looks into it as well. |
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deltavee
Ace Cruncher Texas Hill Country Joined: Nov 17, 2004 Post Count: 4894 Status: Offline Project Badges: 
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It may be that CEP2 is no longer a "High Feeder Priority" project.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
It may be that CEP2 is no longer a "High Feeder Priority" project. A previous analysis was that if you have unlimited set, then CEP2 is not priority treated. Asked uplinger, IIRC, to up the specific buffer limiter from 16 to 32 to give more push. Just checked, nothing moved on that. As this morning increased the concurrent from 1 to 2 [efficiency immediately dropped from 98+% on 1 to 94% for 2] and profile from 5 to 6, am anticipating 1 CEP2 to get added. It's on 3 sciences diet, so will know in a little when the 'don't need' changes to 'requesting nn seconds' if this project feeds first or not... while typing, and it did not.  [Edit 1 times, last edit by Former Member at Sep 10, 2015 2:47:02 PM] |
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deltavee
Ace Cruncher Texas Hill Country Joined: Nov 17, 2004 Post Count: 4894 Status: Offline Project Badges:
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A previous analysis was that if you have unlimited set, then CEP2 is not priority treated. Asked uplinger, IIRC, to up the specific buffer limiter from 16 to 32 to give more push. Just checked, nothing moved on that. On my 24 thread machines I've had the profile set to 16 CEP2 tasks, with the app_config.xml max_concurrent set to 12. If greater than 12 then errors start occurring. Crunching CEP2 and OET1. Until recently this has worked out well, but now my crunchers are having trouble getting enough CEP2 WUs. Changing the buffer limiter to 32 would be greatly appreciated.edit- added quote [Edit 1 times, last edit by deltavee at Sep 10, 2015 2:58:25 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Cannot emphasize enough how important it is for a continuous stream of CEP2 tasks. Interrupted supply means concurrent starting when resuming which is disastrous for efficiency, bleeding disastrous, a period where dramatically higher saturation and fail rate chance is upon the hosts that do more than 1 at a time.
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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It may be that CEP2 is no longer a "High Feeder Priority" project. A previous analysis was that if you have unlimited set, then CEP2 is not priority treated. Asked uplinger, IIRC, to up the specific buffer limiter from 16 to 32 to give more push. Just checked, nothing moved on that. I have had it set to "unlimited" for years and have had no problems before running on 6 cores on each of several machines. I can try other settings, but it looks more like the feeder priority to me. |
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