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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Power usage when running BOINC on laptops/tablets |
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Thread Status: Active Total posts in this thread: 38
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Ok, so I have 300 Lenovo x200/x201/x220 laptops/tablets that I want to join to the grid
I also want to be a member that joins and contributes to the grid for a long time, not someone who joins and leaves because of the electricity bill. So with that being said, I am trying to ascertain the real world power usage of BOINC on truly portable devices. Most of the computers will not be plugged in (hence not running BOINC) during the hours of 8AM to 5PM, after that they will be "possibly" plugged in, possibly sleeping, possibly plugged in not sure really. so a potential 16 hours of run time I need to come up with some concrete numbers that will show we can run BOINC without greatly affecting the bottom line. Sorry if the post is confusing I have about 30 browser tabs open regarding this issue, and just need some help/advice |
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Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges: 
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First it's an excellent initiative, and I sincerely hope that you will succeed.
----------------------------------------Now regarding the electrical consumption. We are here talking about laptops. This means that they are moved around taken at home, or on travel by the employees, or students from your school. If this is true then the laptops will be plugged on your school's power grid from time to time only. I suppose the idea is to have the Boinc app to run as a screen-saver and kick in during idle time. After office hours except if you communicate in your school for a volountary action in favor of WCG and this means to leave the laptops ON during the night hours, the majority of your laptops will be OFF. This means that your real additional power consumption is during day hours when instead of having flying toasters as screen-savers you have Boinc running. If I got it right then your additional power consumption will be negligible.  P.S. set up the screen to be blank (black) when the Boinc app kicks in, you will avoid any consumption due to animated graphics display.  [Edit 2 times, last edit by Hypernova at Dec 7, 2011 12:04:23 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Saint Marys School,
----------------------------------------Welcome to forums and lauding your plan. With such a big fleet of resource I'd recommend to contact support@worldcommunitygrid.org and introduce your plan. Techs at WCG are best placed to get your 300 systems running in a mass roll-out process. --//-- edit: For the basics, BOINC can be set to pause when on battery if that is what you mean with not being plugged in. Then when you connect to the charger it will resume, long as the laptop is not in sleep/hibernate mode. My duo laptop on charger and 100% BOINC draws 85 Watts/Hr at the wall-socket. It's 5 years old. Newer will draw less. [Edit 2 times, last edit by Former Member at Dec 7, 2011 12:47:17 PM] |
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krakatuk
Advanced Cruncher Germany Joined: Oct 3, 2008 Post Count: 141 Status: Offline Project Badges: 
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Saint Marys School,
----------------------------------------you can expect about 40-50W/laptop consumption while crunching full power. But please keep in mind another possible issue: the battery. If you don't remove the battery for the crunching periods - it will be killed pretty fast. My laptop eated up it's battery in 3 months crunching 24/7. So now I remove the battery while home and crunching.  |
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depriens
Senior Cruncher The Netherlands Joined: Jul 29, 2005 Post Count: 350 Status: Offline Project Badges:
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Unfortunately I can't really say anything about power consumption as I've never measured it on my laptops.
----------------------------------------But I do not reckognise the problem which krakatuk is describing. I've been using my old (HP 6730b) laptop on WCG for 3 years now with WCG on 100% of the time. It's running for at least 10-12hrs/day even without being plugged in and the (original) battery is still in fine condition. Unplugged it can still run about 2 hours with both cores on 100% and speedstep DISabled. [edit]my other laptop (Samsung RV720) and my new laptop (Dell Latitude E6420 i7-2720QM) are both running WCG under the same conditions as above for the last 3-4 months without any problems as well.   [Edit 1 times, last edit by depriens at Dec 7, 2011 2:45:21 PM] |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 3010 Status: Offline Project Badges:
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I, too, haven't seen what krakatuk has - and I've got a Lenovo T410 with battery in* and crunching 24/7 for the last 15 months with no issue over battery condition.
----------------------------------------* The issue I have, is when the battery is removed, the power of the machine decreases... (to rectify this, I need a higher spec mains adaptor - which, when I'm back in employment again, I'll purchase so that I can run it at full pelt without the battery being in).  |
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krakatuk
Advanced Cruncher Germany Joined: Oct 3, 2008 Post Count: 141 Status: Offline Project Badges:
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Ok, I see now that obviously some (newer) laptops know how to handle the battery properly.
----------------------------------------But unfortunately my old HP compaq 6910p doesn't ;o) Do we have somebody with Lenovo x200/x201/x220 WCG experience here? |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi everyone, and thank you for responding
Ok here is an update. These power results are for the x220 which is an core i7-2620M @2.7GHZ Quadcore This computer is pulling 20Watts at idle (screen open, and on, no screensaver, and no WCG client running) WITH WCG running (averages) 20Watts @ 20% processor setting in WCG 25Watts @ 30% processor setting in WCG 35Watts @ 40% processor setting in WCG 40Watts @ 80% processor setting in WCG 45Watts @ 100% processor setting in WCG I am testing the 200/201 and will report back with their results Thanks everyone |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Also if anyone has any information regarding another question here:
https://secure.worldcommunitygrid.org/forums/...32214_lastpage,yes#354021 Thanks |
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Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges:
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Hi everyone, and thank you for responding Ok here is an update. These power results are for the x220 which is an core i7-2620M @2.7GHZ Quadcore This computer is pulling 20Watts at idle (screen open, and on, no screensaver, and no WCG client running) WITH WCG running (averages) 20Watts @ 20% processor setting in WCG 25Watts @ 30% processor setting in WCG 35Watts @ 40% processor setting in WCG 40Watts @ 80% processor setting in WCG 45Watts @ 100% processor setting in WCG I am testing the 200/201 and will report back with their results Thanks everyone So at 100% processor setting your additional (against idle)consumption is 25 watts/machine which equals to 300 X 25 = 7.5 kW. I am sure that the users have screen-savers installed (except if you block it), so you should also estimate what is the consumption when screen-savers run. Then the big question now is how many hours per day will WCG be running, and what cost per kWhr are you being charged. |
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