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World Community Grid Forums
Category: Completed Research
Forum: Genome Comparison
Thread: Anyone noticing longer work units? |
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Thread Status: Active Total posts in this thread: 6
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teletran
Senior Cruncher Joined: Jul 27, 2005 Post Count: 378 Status: Offline |
Not an important issue - just curious. The last couple of days I noticed my computer getting longer work units (over 4 hours to complete) then usual. I think they have generally taken between 2-3 hours.
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Sgt.Joe
Ace Cruncher USA Joined: Jul 4, 2006 Post Count: 7684 Status: Offline Project Badges: 
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teletran,
----------------------------------------It is hard to tell. I have some older machines that are only able to crunch GC and I have seen some longer units, but they seem intermittent. On the PII, my slowest machine, I had one which took 17.49 hours on 12-16 to one which took 4.52 hours on the 12-27. It appears to be random chance you got a batch of longer ones. Maybe we'll know more when the project has been going longer. Cheers Sgt.Joe Minnesota Crunchers
Sgt. Joe
*Minnesota Crunchers* |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
teletran,
----------------------------------------the duration of batches and work units is dependent on the complexity of the molecule, fold , protein, genome on hand. Presently have had GC's coming thru 1 taking 2 hours, the next 4.5 hours (C2D CPU). Similar with FA@H have mixes coming thru of 4 to 7.5 hours.... no predicting, no expectation. U will have read the term 'non-deterministic'. Sometimes in a few attempts the optimal is found (or minimum acceptable energy or whatever is looked for), sometimes many re-attempts and ways to find convergence are needed in a step. cheers
WCG
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davidhobbs
Senior Cruncher England Joined: Dec 30, 2004 Post Count: 151 Status: Offline Project Badges: 
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Hi Sekerob,
Welcome back! I understand what you say, but nevertheless I agree with teletran. I also have noticed that on average these work units are taking much longer to complete than has generally been the case. David. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I'm noticing the same thing - right now have a WU at 9hrs and 54% complete.
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teletran
Senior Cruncher Joined: Jul 27, 2005 Post Count: 378 Status: Offline |
I'm still getting mostly units that take under 2 hours but the occasional one is much longer.
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