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World Community Grid Forums
Category: Active Research
Forum: Mapping Cancer Markers Forum
Thread: Very Long Run Times |
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Thread Status: Active Total posts in this thread: 20
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LukeBK
Cruncher Joined: Jan 15, 2008 Post Count: 1 Status: Offline Project Badges: 
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Has anyone noticed some projects are going for days now? I have some 7.41 projects now taking 11 days. Others taking 3 or so days. At the same time I have projects running in just 3 or so hours.
I have a fast PC with a 4.00 GHz i7-6700K with 32 GB of RAM. So I don't think its the speed of my computer that is the issue. Just wanted to make sure we didn't have some bad projects eating up time for some reason. Thanks! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Venture to guess that 7.41 is a version of African Rain Prediction on a different platform than Windows. The text after 7.nn is what describes the project as per a sample from BOINC on Windows
7.08 Smash Childhood Cancer SCC1_0003826_Prdm-C_20061_0 00:12:44 (00:12:12) 95.76 7.396 02:39:31 4/11/2020 10:21:17 AM 4/21/2020 10:21:17 AM 7.16 Microbiome Immunity Project 2 [Tasks], double click to expand - (-) 0.00 0.000 04:09:58 4/11/2020 12:46:15 PM 4/21/2020 12:46:14 PM Ready to start 7.30 FightAIDS@Home - Phase 2 FAH2_002743_zinc72158025_000004_000009_104_0 00:22:58 (00:21:06) 91.91 6.550 05:27:42 4/11/2020 12:01:30 AM 7.27 Africa Rainfall Project ARP1_0006857_007_0 18:21:03 (15:31:19) 84.59 70.708 07:36:07 4/8/2020 4:17:34 AM 4/15/2020 4:17:34 AM Running High P. [5] 7.30 Help Stop TB HST1_306290_000014_MC0005_T325_F00017_S00033_1 00:53:00 (00:50:04) 94.46 5.592 14:54:49 4/10/2020 10:22:07 PM 4/20/2020 10:22:06 Each of these sciences have different runtimes as well as intervals when they save progress to storage at so called checkpoints. |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12594 Status: Offline Project Badges: 
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There is a huge disparity between projects. For instance, on my i7-3770, arp is taking over 24 hours whereas scc is taking 1.8 hours - a factor of 15.
----------------------------------------However, it also depends on how many of each you are running at the same time. arp slows down substantially if you run more than half your threads on arp and mip has problems with more than 3/8. Keep below those limits and you should be OK. arp also has a long time between checkpoints and you can waste a lot of time if you shut your machine down mid-checkpoint. Hibernating rather than shutting down preserves that crunching rather than losing it. Mike [Edit 1 times, last edit by Mike.Gibson at Apr 11, 2020 6:18:47 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Venture to guess that 7.41 is a version of African Rain Prediction on a different platform than Windows. The text after 7.nn is what describes the project as per a sample from BOINC on Windows[\quote]
African Rain Prediction on Linux is 7.27. This is probably a MCM work unit. |
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PMH_UK
Veteran Cruncher UK Joined: Apr 26, 2007 Post Count: 786 Status: Offline Project Badges: 
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I have MCM 7.41 on a slow old 32 bit windows PC running around 4-6 hours.
----------------------------------------11 days CPU on a faster PC sounds implausible. Elapsed 11 days implies being interrupted by other tasks, like FAH that have short (24hour?) deadlines. Paul.
Paul.
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12594 Status: Offline Project Badges:
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What was the CPU time on the unit that took 11 days?
Mike |
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Sgt.Joe
Ace Cruncher USA Joined: Jul 4, 2006 Post Count: 7844 Status: Offline Project Badges: 
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I have a Q6600 (old machine) running Win Vista (old OS) with 2gb memory which is very consistently running MCM at 3.25 hours apiece. It has been running MCM exclusively for months. I have yet to see a work unit get stuck. I would speculate it is a system problem, not a work unit problem.
----------------------------------------Cheers
Sgt. Joe
*Minnesota Crunchers* |
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squaregoldfish
Cruncher Joined: Dec 18, 2005 Post Count: 8 Status: Offline Project Badges: 
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I've been seeing the same issue in the past few weeks. Resetting the project didn't help - I'm going to try cutting it down to one WU at a time (it's a 4 core machine currently running 2) to see if that does anything...
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12594 Status: Offline Project Badges:
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There shouldn't be any capacity issues with mcm, unlike arp & mip.
Mike |
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