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Thread: How many cores does WCG use? |
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Thread Status: Active Total posts in this thread: 3
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twilyth
Master Cruncher US Joined: Mar 30, 2007 Post Count: 2130 Status: Offline Project Badges: 
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I saw this article today saying that LHC has the largest distributed computing grid in the world.
----------------------------------------https://theconversation.com/number-crunching-...buted-computer-grid-38696 But with about 70k active users, I was wondering if WCG might not use more than the 485k cores that were used for the first run of the LHC. During the first “season” of experiments on the LHC, now known as Run 1, the WLCG used up to 485,000 computer processing cores to crunch its way through around 2M sets of calculations a day. Around 10% of this number-crunching was performed by the GridPP Collaboration, the UK’s contribution to the WLCG funded by the Science and Technology Facilities Council (STFC). Today Tier 0 is processing around one million billion bytes (a petabyte, or 1PB) every day – equivalent to about 210,000 DVDs.   |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Ah, a case of someone possibly wrong on the internet
 On a Monday WCG does 500 years times 365 days = 182500 24/7 cores. A large constituent is part time, in fact the per active computer calculation says they're doing 16.55 or so hours... that's 265K cores. The stats though say WCG got ~250K devices working, LHC right now 19K and Atlas 4.2K. Whatever the 'up to' means and the rest, they've just fired up again to aim for twice the collision power than their Run 1 [and find something really new, something unpredicted], so now you got the chance to watch their statistics at BS where it says their past 'Best' was 64,839,664 credits, when WCG had 276,503,599 as best day in the GPU era and 198,547,913 outside, if that even remotely could be drawn into comparison. Enjoy your quest. |
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twilyth
Master Cruncher US Joined: Mar 30, 2007 Post Count: 2130 Status: Offline Project Badges:
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Thanks Sekerob. It should have occurred to me to check the number of days worked per day.
----------------------------------------But on the stats, I wonder if they're including citizen volunteers in that 485k number. |
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