Processing LHC Data
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- เผยแพร่เมื่อ 9 ก.พ. 2025
- The LHC produces 600 million collisions every second in each detector, which generates approximately one petabyte of data per second. None of today's computing systems are capable of recording such rates. Hence sophisticated selection systems are used for a first fast electronic pre-selection, only passing one out of 10 000 events. Tens of thousands of processor cores then select 1% of the remaining events. Even after such a drastic data reduction, the four big experiments, ALICE, ATLAS, CMS and LHCb, together need to store over 25 petabytes per year. The LHC data are aggregated in the CERN Data Centre, where initial data reconstruction is performed, and a copy is archived to long-term tape storage. Another copy is sent to several large scale data centres around the world. Subsequently hundreds of thousands of computers from around the world come into action: harnessed in a distributed computing service, they form the Worldwide LHC Computing Grid (WLCG), which provides the resources to store, distribute, and process the LHC data. WLCG combines the power of more than 170 collaborating centres in 36 countries around the world, which are linked to CERN. Every day WLCG processes more than 1.5 million 'jobs', corresponding to a single computer running for more than 600 years.
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I love the music used in this video!
Brilliant. CERN TV needs more videos like this showcasing their great achievements
This is such a clear visualisation of the LHC and the scale and processes involved.
That was pretty awesome, great job guys. Gave me something to do while waiting for my grid jobs to complete ;)
This was really good, fast and informative. Maybe there could be one describing what data CERN actually is looking for?
CERN using flashy animation, this is what I like and its really easy to understand. Reminds me of Intel's way of demonstration :) Thanks for uploading this its really cool
Humanity...ahh...the possibilities...simply amazing!
If you want to know the music used it was: Harry Pinnock - Departure Down
wanted to know the song since this video was released, thanks lol
@@Cosine_Wave no problem
Amazing. Clearly, a feat mankind should be proud of. What song is this?
Harry Pinnock - Departure Down
What is LHC@home? Can we use it on android phone?
It's amazing that they used to go through the collision data manually by looking at the bubble chamber images.
The 8. Wonder of the World! Should get money from UNESCO!
Science is the True Love.
Absolutely magnificent
If only there were more videos like this one!
It was awesome! Cool data, nice presentation! 10/10
Congratulation!
SUZI; I would see it as excitement from watching a movie than having to get up to use the restroom. It is a conflict that is sometimes uncontrollable, random, and even chaotic, but also inevitable, with an infinite amount of occurrences.
very beautiful, easy to know about CERN
Lovely video - inspiring graphics
Thank you for that confident statement. You are smart,dude!
amazing! Bravo. Unmatched achievement!
I hope that participation amongst southern African countries (mainly SA) in the Square Kilometre Array will lessen this feeling of marginalisation. I was excited to hear Africa wasn't left out because of how much it could do for science on that continent.
Awesome!
Hi....i would like to know if it is possible to avoid "molecule degradation" in a person body through Electronics/Magnetism/Laser or other field of science.
dat electro-glitch track
Beautiful and well executed animation! What was the music?
Please do more videos like this...thank you :)
As IT engineer, I'd be happy with cleaning floors in that datacenter.
Very nice.
beautifull animation
Excellent video, I'd love to know what the music is though! :)
The only thing i don't understand is how they manage to align the hadrons they hit each other perfectly, i mean just a micrometer off and they won't even be remotely close
+herpsenderpsen magnets breh
RVGENomini still, those magnets must be so extremely precise it's incomprehensible
+herpsenderpsen The magnets are precise but not that precise. We are able to get reliable collision rates by bunching the protons/heavy-ions into bunches containing ~100 billion protons each. When you smash a blob of 100 billion protons into another blob of 100 billion protons you're going to end up with collisions. Now, most of these collisions are glancing collisions where nothing really interesting happens and that is exactly why the first step in LHC data processing is filtering out these collisions.
+herpsenderpsen the beams consist of alot and I mean alot of particles, most of them indeed miss but some hit by chance and that matters
But will it blend?
Hah cool video! Don't understand much of these things but the animation was still fun to watch. Maybe because of the lovely music.. :D PLEASE tell me the name of the song and who composed it!! Thank youu ^^
song ? :P
Incredible
Seen it in person. :)
Are you guys making a time machine? ;)
Super filtering to produce data which demonstrates predictions :D
What is the name of the song please?
Why are they using tape storage? I would opt for Solid state storage system.
Yes very good, but what do you hope to find / do with the cern machine ?
I guess to discover new particles such h as dark matter maybe now that the primary goal of finding the Higgs boson is done.
very intresting ...... thank you
I Just Came Back From A School Trip To Geneva And I Got A CERN Data Tape Of 1 Terabyte That Was Once Used At Cerns Servers. They Run On Film So The Magnets Don't Affect it!
Captivated Gaming same I can't figure out how to access the data quite yet
Ok
I Cant Either
amazing
What if one hydrogen atom hit a person at that speed? Would it hurt/kill you or would you even know? Just curious.
Name of the song?
Does anybody else than CERN have access to the data? Is anybody else than CERN free to analyze and possibly repeat the experiments? What are the pillars of the scientific model?
Cern has the technology to transfer information at the rate of 10GB/s and we are still using our internet in the unit of megabits/s I want that speed too :D
Oooh, animations, la di da!
Hegelian: Science as nature coming to know itself, by way of the human being.
SCIENCE! YES!
Is there any african institute involved with CERN?
i would have thought they stored way more than 25 petabytes a year in data, especially with the amount produced. If I recall correctly they only keep data that is "interesting" or different from a typical collision. As a network engineer 25 petabytes just doesn't seem like that much information.
+fckth3systm I think there's a lot of raw data there that's just "junk" for them, aka not interesting. I guess the real job is finding something interesting amongst all the data and then actually figuring out what the data represents.
And LHC@home is???
awsome
There is way too much data to store it all on SSD. That would be far too expensive. Tape is slow, but is still the cheapest per byte. They have a lot of data to handle.
I don't know. That(your question) is where the marginalization is. People might see my comment annoying but it is clearly what seem to be the case here.
blow me away!
I think those responsible for designing the architecture of this stuff might know a tad more than you.
That is more likely a speculating. I think that doesn't answer my question.
Have you seen raw LHC data???
holy crap! 100GB/sec that's like every gamers dream
Cool
Wee computer animations, shame it wasn't narrated
muito bom
amo a ciencia
Bata
El. Psy. Congroo.
it's worth it:)
Power to will the universe
Sir i m invent tree sensorable Ai algorithm or power acceptor large machine. This power acceptor help update new type quantum computer India India
Why is Africa always left out in the scheme? Just look at how Africa is left out of the grid. It is clear we are marginalized not because we are not that intelligent but because of stereotype. There is a sense of being left out in this project for young African like me.
HOW HUMANS ACHIEVE ALL THESE .....FROM HUNTING ANIMALS TO BUILDING A PHYSICS MARVEL!!!
100GB / S
:D
millions and millions of Russian roulette attempts on a multi universal and transdimensional scale. But what else is there to do when you're mad and a scientist simultaneously?
:O
я с урока инфи
If you have to do glitzy promotional videos to get people interested in math and science, they are not mathematicians, they are not scientists.
Ralph Walters True, but they are funding the LHC through their country’s financial and academic contributions. Personally, I crave more information (or at least as much as I can fathom!) about the sciences but many are turned off by the subject. I think this “marketing” type video is really well produced, clear and helps laypeople to understand what’s achieved there.