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World Community Grid Forums
Category: Retired Forums
Forum: Member-to-Member Support [Read Only]
Thread: The restarting problem--maybe a log needed for the app? |
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Thread Status: Active Total posts in this thread: 31
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have several computers running this. One, a laptop, successfully processed its first problem. The second one, though, shows no sign of success. It processes the problem to 0.4% completion, consumes a couple of hours of CPU time, and then seems to reset itself. I do not think that this is an example of one of the unsolvable problems, as this has gone on for a couple of days, past the usual 6:00 GMT statistics compiling period, and I am not seeing any credit for the attempts.
I don't really care about the statistics, points, etc. I would like, though, to have a way of knowing that the program is in fact crashing vs. just processing an unsolvable problem. Maybe the best way to do this would be to have it provide a simple user log of some kind that would list the problems solved and indicate if unsolvable problems have been encountered. That way, at least, the users would know if their program crashed as opposed to encountered the unsolvable problem. Thanks for listening. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi there,
I'm having the same problem. My computer finished its first task yesterday afternoon, and since then it resets itself after a few percentage points. Since it finished its first task, the software doesn't show more than 2 or 3% and a couple of hours of CPU time. Then, for no apparent reason, I find these statistics back at zero. It should be showing some 20 hours of processing but it has just re-started counting again. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Ditto. Same here... whats goin on with this?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Yep, same here
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Sinus
Cruncher Joined: Nov 19, 2004 Post Count: 7 Status: Offline |
Hmm i also have that myterious "problem".
My first workunit finished correctly (Took some time 1 day 12 hours, 852 points, quite a large unit whe i compare it via statistics with other users). anyway since them, i received around 3 workunits (those i noticed), they all have neen crunched until around 2-3 % (Took serveral hours) and than a new workunit was downloaded (i think so). fcomparing the 'visual' in the information windows to the first proteein, they are are even larger. In read in another post that this might be normal, because some protein's are NOT foldable or something like that, so the crunching stops and a new workunit is downloaded. But i wonder : - why i don't receive any points - hey i did my party of calculation/donation to the grid - why there is no logfile, where i can see what's going on with the client Or is there somethign wrong with my machien here. ( AMD 2000+ to slow for larger workunit's ?) During The first workunit i tunred off and on my machine serveral tiems, and the cruchning simply started where it stopped last time. so a log file would greatly help to understand what is going on. But turnign off an on isn'T the probleme here, i didn't turn it off. Would be great do get more information from offical site, maybe under news here i nthe forum. I think that could frigh an disapoint some users to go on with this grid and maybe get back for a search of some stupid alien who want to phone with us... best regards Sinus - Team Germany - |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I'm having the same problem too. Mine gets to about 4% and then restarts.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Sometimes this is caused by a computer that isn't completely stable and as such when the client detects a processing error it stops working and restarts. Make sure your systems is stable and if it is overclocked you may want to try running it at spec to see if that solves the problem. Remember that even though your computer may get more work units done when it is overclocked there may also be errors in the completed report for those work units which would unfortunately make them useless. So if your going to run your system overclocked you would be doing yourself a favor to run a program like "Prime95" to test it for stability prior to doing any work units because a completed work unit that contains errors is a waste of your time and ours.
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United_We_Stand
Cruncher Joined: Nov 20, 2004 Post Count: 15 Status: Offline |
Copied from a copy of a copy of this Post.
 A "work unit" consists of various data including the protein sequence. The longer the sequence the "harder" it is to predict the fold. Longer sequence proteins take longer to process (sometimes much longer). Due to the nature of the work, it's impossible to predict how long any specific work unit may take. i.e. it's non-determinsitic. That's really the beauty of putting this on a grid: it's a difficult computation problem. Sometimes a work unit may not "converge" as we call it. This means it just hasn't found any way to fold this specific protein in a given amount of time and gives up. When it determines it can't converge it just stops working on it, sends it back (telling us it didn't converge) and you get a new work unit. However, it will try very, very hard before it gives up. This would explain why you saw it processing for probably 4 hours and still be at 0.0%...then suddenly you saw it go to 0.4% and the CPU time went down. Points-wise, you should still get credit for the effort though. Have some faith in that you really are helping to promote our understanding of the human proteome. If this was easy to do, we wouldn't have put it on the grid! ---------------------------------------- Rick Alther World Community Grid Application Developer |
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David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges: 
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ARRGGHH this is driving me nuts. I clocked up over half a million points at grid.org and over 5 years of CPU time. My setup is stable enough to power UD to this level but on WCG i've just spent 24 hours producing nothing. It runs for 2 or 3 hours gets to a maximum of 2.4% then resets and downloads another meg of data and rolls around again. No points no progress and no results being posted to get this job done.
----------------------------------------I've tried all of the recommendations I've reduced my hard disk space allocation and still no progress. We're using the UD client the same as Grid.org. This is a real fault with the software or the WU's not a dodgy PC. Might be forced back to grid.org then at least my electric bill is not in vain. Please WCG IBM have a look into this fault Regards Dave  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Copied from a copy of a copy of this Post. This would explain why you saw it processing for probably 4 hours and still be at 0.0%...then suddenly you saw it go to 0.4% and the CPU time went down. Points-wise, you should still get credit for the effort though. ---------------------------------------- Rick Alther World Community Grid Application Developer So where have all the points gone? I can not believe that all those PCs are instable. What I know for sure is that my own machines are not overclocked and they have been running DC-projects for months without issues. |
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