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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Why are my systems getting shortchanged on work-unit results? |
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Thread Status: Active Total posts in this thread: 6
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have a quad-core AMD system (Phenom X4 9850 @2.5GHz) with 4GB of RAM, which isn't entirely cutting-edge but is definitely not a slouch, yet in spite of it I'm seeing result after result where this system is getting shortchanged on the point values awarded:
Status Sent Time Time Due / Return Time CPU Time (hours) Claimed/ Granted BOINC Credit I find it hard to believe that my system is so far behind the average that it's doing 15% - 20% more work to get the same results, and getting shortchanged as a consequence. It's refusing to run other programs now and complaining about feelings of inadequacy. What is going on here? |
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toss
Senior Cruncher New Zealand Joined: Jan 3, 2007 Post Count: 220 Status: Offline Project Badges: 
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Hi Vulcan,
Please read this page... https://secure.worldcommunitygrid.org/help/viewTopic.do?shortName=points#top I think that might clarify the matter for you. You're not really being short changed. Cheers |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Though the projects should not be relevant as to the credit, it could give an indication. AND, as has been mentioned in many threads, if 64 bit OS/client is involved you'll be hitting the overclaim rule when 2 claimants are far apart... the sciences run 32 bit, so a 64 bit client meeting a 32 bit client in a quorum amplifies this seeming shortchanging. Discussed to death.
----------------------------------------Further a quad has limited resources, not 4 of each for all, thus expect resource constraints as the tasks work through their different phases, particularly the ZR projects, which is why I run mostly on scheduled contact so as to minimize bottlenecks when upload/download/finish/end of jobs come together. Then when I see nothing imminently completing or just having started, I hit the update button to automatically open the line for 5 minutes to do the server U/D bits. This certainly for me on the quad seems to improve the grant, most of the times. Works for me, but no quarantee it works for u.
WCG
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nasher
Veteran Cruncher USA Joined: Dec 2, 2005 Post Count: 1423 Status: Offline Project Badges: 
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was that a rice work unit you are showing the stats. if so they are a completly difrent style of work unit than the others and a much lower or higher score is not supriseing.
----------------------------------------2) were you doing other things on your computer that take up alot of the CPU.. i have noticed that i loose about 20% of my points if i am running WoW while a work unit is crunching (but im not stoping playing WoW so..? could be an anti virous program slowing your system down too (hopefully you have one) if you dont it could be a zombie bot slowing your computer down  |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Nasher, Rice would for all show 7.00 to 7.03 hours or there about in completion times. There are about 3 in that list.
----------------------------------------Edit: While you get 20% less is while WoWing the ZR mini benchmark and docking grid setup get impacted. They are measured and used to reference the anticipated performance of a system, ignoring the client claim more or less.
WCG
----------------------------------------Please help to make the Forums an enjoyable experience for All! [Edit 1 times, last edit by Sekerob at Sep 29, 2009 2:48:33 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Though the projects should not be relevant as to the credit, it could give an indication. AND, as has been mentioned in many threads, if 64 bit OS/client is involved.... Nope, no 64-bit OS involved. Further a quad has limited resources, not 4 of each for all, thus expect resource constraints as the tasks work through their different phases, particularly the ZR projects, which is why I run mostly on scheduled contact so as to minimize bottlenecks when upload/download/finish/end of jobs come together. Then when I see nothing imminently completing or just having started, I hit the update button to automatically open the line for 5 minutes to do the server U/D bits. This certainly for me on the quad seems to improve the grant, most of the times. Could you translate that into English?  I have no idea what ZR projects are, and don't understand the process you're describing. I do recognize that single quad-core CPUs have some shared resources that limit their capabilities versus four truly autonomous CPUs. I'm sure I'd produce better results having four separate single-core computers running, but that's not something that I can justify doing, as you might guess. I will probably break out the Apache server and a few other processes into a separate machine again at some point, but it probably won't be another quad-core!This system previously had a dual-core Athlon X2 7850 CPU, overclocked slightly to 3.0GHz. (It was Forged Alliance that motivated the upgrade.) I wasn't seeing quite the same disparity with that CPU. Would it be your opinion, then, that reduced disparity would have been because of the reduced sharing of resources (two versus four), or instead because of the increased clock rate at which it operated? @nash: I don't think the sharing of the CPU with other processes affects the computational assessment. It's been my understanding that the determination of the "effort" required is based on how many clock cycles the work units actually used, not an amount of elapsed time. How many cumulative cycles any given process has used is information that is readily available, since it's even accessible in Task Manager. I'd be surprised and shocked if "interruptions" in the process counted significantly against it. |
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