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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi jonnieb-uk, yes I saw that - I log in regularly to check out your stats and have a read through some of the recent threads while I'm on.
It would be great to have a GPU project again - I've still got my pair of 7870s, but have a pair of R9 280Xs too (basically rebadged 7970s), so would love to put them to use on the WCG. Nice to see the team hitting 1500 years of runtime - won't be long before we hit 2000, especially with mamajuanauk on the case. |
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Mamajuanauk
Master Cruncher United Kingdom Joined: Dec 15, 2012 Post Count: 1900 Status: Offline Project Badges:
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If you're using mechanical drives on systems running multiple CEP2 WUs, your processors are probably spending time waiting for I/O. What ratio of CPU time vs elapsed time are you getting on your awesome monster high thread systems? Hi Soong, on the wu I checked it shows the following: CPU time - 11:01:13 Elapsed time - 11:47:32 Remaining - 07:01:59 Fraction done - 61.225% This is the 2.2Ghz/64 core machine, but it's only doing about 30 CEP2 the rest are some Simap tasks I'll check some other machines when I get a few minutes...
Mamajuanauk is the Name! Crunching is the Game!
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks mamajuanauk - I've checked my 'Results Status' page, and the five longest valid WUs are showing 11.97/12.09, 7.97/8.08, 6.85/6.91, 6.65/6.70 and 6.62/6.67 - so an average of 99.036% efficiency. The WU you're showing has been running for 11:47, and has probably spent 46 minutes of that waiting for I/O.
I known that mechanical drives vs SSDs can be a contentious issue with regards to CEP2, with writes degrading SSDs, but in my opinion it's overstated and mechanical drives fail too. Honestly, I don't know how your drives don't catch fire. Samsung have their new 850 pro SSDs with 3D NAND which is supposed to be very resilient (10yr warranty, and the 256GB version is ~£135 (see how I don't mind spending other people's money :-))). Pop one of those into your 64 core machine and let us know how you get on - remember, it's not just the bandwidth, it's the latency. |
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Mamajuanauk
Master Cruncher United Kingdom Joined: Dec 15, 2012 Post Count: 1900 Status: Offline Project Badges:
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@Soong
----------------------------------------I've got some SSD's around I'll try one and report back... Thanks for the guidance...
Mamajuanauk is the Name! Crunching is the Game!
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Mamajuanauk
Master Cruncher United Kingdom Joined: Dec 15, 2012 Post Count: 1900 Status: Offline Project Badges:
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Morning All...
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Mamajuanauk is the Name! Crunching is the Game!
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Mamajuanauk
Master Cruncher United Kingdom Joined: Dec 15, 2012 Post Count: 1900 Status: Offline Project Badges:
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@Soong
----------------------------------------I've done some checks on valid results, they are coming out between 94 & 95.5% I guess this is not re main issue, while it would appear lower than your reported 96% I don't think it is too bad... Your thoughts? Any other suggestions? I would prefer not to change the hdd for an ssd as that would require a rebuild as I only have builds for Ubuntu desktop (max 2p/socket) this machine is a quad processor... thanks again
Mamajuanauk is the Name! Crunching is the Game!
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jonnieb-uk
Ace Cruncher England Joined: Nov 30, 2011 Post Count: 6105 Status: Offline Project Badges:
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Congratulations to the following UK team members on achieving a Personal Milestone in yesterday's crunching:
---------------------------------------- Labinopper 13,000,000 Points Darkmatter.NI passes 4,000,000 Points for the UK team neojin passes 400,000 Points for the UK team neojin passes 500 Results for the UK team Today marks: 6 years crunching for WCG for stephen.kinnear Congratulations also to the following UK team members on setting new PBs neojinRuntime 23:14:29:15 Points 79,327 Results 106 Gilarm Runtime Points 25,184 Results UK team - Individual Ranking Movements
UK team Comparison of Daily RunTime, Points, Results Hours Points Results Average Daily Crunching Comparison RunTime Points Results Milestone Targets for the UK team Target Current To Do 7day Avg. Estimate No. Of Members Active Yesterday Day out of Tot. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Sorry mamajuanauk, that's the only thing I could think of that might cause the discrepancy you're seeing.
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jonnieb-uk
Ace Cruncher England Joined: Nov 30, 2011 Post Count: 6105 Status: Offline Project Badges:
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[Daily Global5000
----------------------------------------RT(days) # Points # Results # The Daily Global5000 accounted for 72.8% of yesterday's RunTime of 410.9 years The UK Team accounted for 0.53% |
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jonnieb-uk
Ace Cruncher England Joined: Nov 30, 2011 Post Count: 6105 Status: Offline Project Badges:
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Activity Report - Restarts & New Members v14.10.1
----------------------------------------InAct14 Restarts New Members |
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