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World Community Grid Forums
Category: Completed Research
Forum: Drug Search for Leishmaniasis Forum
Thread: Stuck workunits |
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Thread Status: Active Total posts in this thread: 49
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Raul, if you used the 90% CPU time or some other non 100% value to get the temperature down [the purpose of the function], then TThrottle ** on Windows is much better and will not cause the issue, I'm pretty sure about that. Opposed to the BOINC throttle, the TThrottle trickles the cycles rather than stop starting, which at 90% would be running 9 seconds and pausing 1. Useless to get a steady allocation of CPU power at user level. For connoisseurs theres ThreadMasterGUI **. Then you can control the percent at individual science level. That is the smoothest operator by for steady crunching and still have a little ad-hoc juice available to the user, without any lag.
It's not the first time the BOINC internal throttle is causing issues with science applications. --//-- ** [See Start Here FAQ index for reference to these utilities for Windows, for XP/W2K and up, through W7, servers incl.] TThrottle+TMG runs on my W7 laptop. Last fail... none showing in the BOINCTasks history, for any WCG science. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Has any resolution to this problem been identified? Work units hang on my Vista system about 75% of the time. I have had no problems with any of the other projects and all my client setting are default settings. Thanks.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello misterA,
75% ?! I do not expect any quick resolution, though I am often pleasantly surprised. This is an unusual problem for most people. If you think that you can contribute useful problem reports that will help pinpoint the bug, then continue. Otherwise, I would temporarily disable this project on my machine if it were acting up so badly for me. Why not crunch happily on projects that run well on your computer? Lawrence |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks for your reply Lawrence. I had considered just disabling the project from my profile, but so far I have just been just rebooting the computer and it starts up again and finishes the task. I can't really provide much useful information other than the cpu utilization of the task goes to 0% but the other running WCG process of my dual core cpu continues as normal.
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pcwr
Ace Cruncher England Joined: Sep 17, 2005 Post Count: 10903 Status: Offline Project Badges: 
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My resent WU hung last night at 35%.
----------------------------------------Rebooted laptop this morning, WU carried on. Patrick  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
HI Sekerob - I have installed the 64 bit version of TThrottle on one of my PCs and am getting to know the program - I have set Boinc preferences to run at 100% of CPU, and am throttling with a temp setting. When I set the temp to 90C,the CPU runs at 100% all the time. When I set it to 85C, I can see throttling taking place and TThrottle reports a running % of 78. I have set it at 88C, and the system is now running fairly constantly at 94% CPU - Certainly seems a much better way to throttle. Any idea what a 'safe' vale for the temp would be (I have simply found a value that runs the CPU at a little less than 100%)
Many thanks for your suggestion. |
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PMH_UK
Veteran Cruncher UK Joined: Apr 26, 2007 Post Count: 761 Status: Offline Project Badges: 
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Raul,
----------------------------------------If that is really 90c, that sounds too hot. I often find 3rd party s/w show different temps from motherboard makers own s/w. Suggest trying to clear out the dust, often requires doing every month or so. Blow or vacuum vents of laptops and desktops and clear dust from desktop heatsinks. Paul.
Paul.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks Paul - I'll do the vacuuming this weekend and then check whether I can lower the temp and still get high % CPU.
Appreciate your advice Raul |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
90C is really extraordinarily high. Check the cooler seating on top of the CPU, or have a knowledgeable person take a look.
CoreTemp http://www.alcpu.com/CoreTemp/ is pretty good and it concurs for me to show the same temps as looking in the BIOS i.e. idle system. Then TThrottle shows also same as CoreTemp and SpeedFan, so I'm confident to get the right readings. --//-- |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Report back - since using TThrottle to limit CPU usage (and control core temperatures) I haven't had a single stuck task. It's been running like this on 5 PCs (3 laptops and 2 desktops) for the past 9 days - BOINC is set to use all processors at 100% usage, and TThrottle is set to control temperatures (75c for the laptops and 85c for the desktops). I see throttling taking place during the day (when the ambient temperature rises to mid-20s), and no throttling at night. Everything is running very smoothly.
Thanks for your help folks Raul |
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