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Thread: Unsatisfactory use of my computers. |
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Thread Status: Active Total posts in this thread: 19
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RicktheBrick
Senior Cruncher Joined: Sep 23, 2005 Post Count: 206 Status: Offline Project Badges: 
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I have 38 cores running 24 hours a day. I should therefore have around 38 days of cpu time a day. I average around 28 days of cpu time a day. I checked my computers and I seem to have enough applications waiting to be started. Today I had only 9 days of cpu time for half of a day. I looked and discovered some applications taking over 100 hours of cpu time. If one looks at the stats for everyone one sees that on the 13th there were 411 years of cpu time with 1,026,869 results and on the 17th there were 413 years of cpu time but only 728,850 results. This means that everyone saw a increase in the average time per result. The average time per result should be lower to keep people who have their computers on only 4 of 5 hours a day. A result that takes over 100 hours would not be done before the deadline in that case. I was averaging over 200 results a day but now for the last 4 days I barely make it over 100 results a day. A result that take over 100 hours should have been divided into at least 10 applications.
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 3010 Status: Offline Project Badges: 
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RicktheBrick, a lot can depend on the type and age of a computer - both in hardware and software.
----------------------------------------In regards to hardware, dust can have a major effect on its efficiency - as dust retains heat, thereby making the CPU's run hotter (and thus, more inefficient). Software can also play a major part - as, over time, more and more software can get installed (either intentionally or unintentionally) and take up CPU cycles. Don't forget also, some CPU cycles will be taken up by the operating system/other software which you may be running on each machine. Personally, I've got a 4+ year old laptop with a quad-core processor in it (so, in theory, I should be getting 4 CPU days to every calendar day). In actual fact, my machine has now dropped down to averaging just over 2 - again, due to hardware and software issues.  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have 38 cores running 24 hours a day. I should therefore have around 38 days of cpu time a day. I average around 28 days of cpu time a day. ....... What are your ratios of CPU to Elapsed times? |
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Johnny Cool
Ace Cruncher USA Joined: Jul 28, 2005 Post Count: 8621 Status: Offline Project Badges: 
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RicktheBrick, a lot can depend on the type and age of a computer - both in hardware and software. In regards to hardware, dust can have a major effect on its efficiency - as dust retains heat, thereby making the CPU's run hotter (and thus, more inefficient). Software can also play a major part - as, over time, more and more software can get installed (either intentionally or unintentionally) and take up CPU cycles. Don't forget also, some CPU cycles will be taken up by the operating system/other software which you may be running on each machine. Personally, I've got a 4+ year old laptop with a quad-core processor in it (so, in theory, I should be getting 4 CPU days to every calendar day). In actual fact, my machine has now dropped down to averaging just over 2 - again, due to hardware and software issues. Not even a fanboy/fanboi (whose numbers here are too many I think) would suggest to someone who knows a LOT about computers that dust can have a major effect on a PC. Are you kidding? Seriously ...  |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 3010 Status: Offline Project Badges:
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RicktheBrick, a lot can depend on the type and age of a computer - both in hardware and software. In regards to hardware, dust can have a major effect on its efficiency - as dust retains heat, thereby making the CPU's run hotter (and thus, more inefficient). Software can also play a major part - as, over time, more and more software can get installed (either intentionally or unintentionally) and take up CPU cycles. Don't forget also, some CPU cycles will be taken up by the operating system/other software which you may be running on each machine. Personally, I've got a 4+ year old laptop with a quad-core processor in it (so, in theory, I should be getting 4 CPU days to every calendar day). In actual fact, my machine has now dropped down to averaging just over 2 - again, due to hardware and software issues. Not even a fanboy/fanboi (whose numbers here are too many I think) would suggest to someone who knows a LOT about computers that dust can have a major effect on a PC. Are you kidding? Seriously ... Johnny Cool, I was 'putting it out there' as a possible contributory cause of why RicktheBrick may not be getting as much throughput as he's hoping. As he didn't provide any actual stats (as Scribe is asking for), then my post was pure guesswork. Yes, he's certainly got plenty of 'umph' (power), although (and this is in no sense any type of slur on RicktheBrick - as I have no knowledge of his computing skills), power doesn't always equate to expertise. Until we know more of his set-up and stats, then all we can do, is guess. Certainly, this I looked and discovered some applications taking over 100 hours of cpu time. would need further investigation - as even the longest CEP2 WU cuts off after 18 CPU hours. Thus, is this WU even a WCG WU?[Edit 1 times, last edit by gb009761 at Sep 20, 2014 4:19:30 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Certainly, this Some FAHV WUs have been taking a lot longer than 18 hours, as per the thread Have very slow WU # FAHV... .I looked and discovered some applications taking over 100 hours of cpu time. would need further investigation - as even the longest CEP2 WU cuts off after 18 CPU hours. Thus, is this WU even a WCG WU? |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 3010 Status: Offline Project Badges:
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Certainly, this Some FAHV WUs have been taking a lot longer than 18 hours, as per the thread Have very slow WU # FAHV... .I looked and discovered some applications taking over 100 hours of cpu time. would need further investigation - as even the longest CEP2 WU cuts off after 18 CPU hours. Thus, is this WU even a WCG WU?Ah, okay tonyh205, as I'm not currently running FAHV at the moment, I wasn't aware that some of those WU's were beating the CEP2 length. Eventhough - 100 CPU hours???, seems a bit odd to me (perhaps, when RicktheBrick comes back to us, he can also provide some of his machine specs as well as the elapsed stats Scribe has asked for). |
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RicktheBrick
Senior Cruncher Joined: Sep 23, 2005 Post Count: 206 Status: Offline Project Badges:
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My computers are 4 core to 8 cores. The slowest is 2.4g Hz. I just checked it's benchmarks results and they are 2133 floating point mips and 4324 integer mips. These have not changed significantly since I purchased the computer over 5 years ago. 5 computers are using Ubuntu, 1 xp, 1 vista and 1 7. The computers have a minimum of 3 giga bytes of memory to a top of 10 giga bytes of memory. This one which has a wu of over 100 hours, I use alot and have not noticed any significant slowing down in other programs. I would think that my computers could be at fault if it were not for the fact that the number of results for everyone is going down drastically. Look at Sunday(21st) number of results. Doubling it will still result in the smallest number in the last two months. At most half of the usual number and at least 100 years fewer cpu time. So everyone should have this problem.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What problem? The only thing I see is that the WU's are taking longer so there are less of them. That is not a problem it is the way things work.
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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Check your file client_state.cc in BOINC dir, it should be sthg like this:
----------------------------------------<time_stats> <on_frac>0.987770</on_frac> <connected_frac>0.999839</connected_frac> <cpu_and_network_available_frac>0.999766</cpu_and_network_available_frac> <active_frac>0.999927</active_frac> <gpu_active_frac>0.999927</gpu_active_frac> <client_start_time>1411275862.071800</client_start_time> <previous_uptime>22598.129799</previous_uptime> <last_update>1411298452.156599</last_update> </time_stats> so you will see % of CPU time...that is from my server computer...on laptop, it's lower percentage - about 90% of given 80% throttle! ;) |
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