V.A. Ilyin,, RIGF, 14 May 2010 Internet and Science: LHC view V.A. Ilyin SINP MSU, e-ARENA.
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V.A. Ilyin,, RIGF, 14 May 2010
Internet and Science: LHC view
V.A. Ilyin
SINP MSU, e-ARENA
V.A. Ilyin,, RIGF, 14 May 2010
Distributed analysis of the LHC data over Internet: Distributed analysis of the LHC data over Internet: 50000 jobs each moment and Pbytes of data for thousends of 50000 jobs each moment and Pbytes of data for thousends of physicistsphysicists
Online systemOnline system
• Multi-level trigger• Filter out background• Reduce data volume• Online reduction 107
• Trigger menus • Select interesting events • Filter out less interesting
level 1 - special hardware
40 MHz (40 TB/sec)level 2 - embedded processors
level 3 - PCs
75 KHz (75 GB/sec)5 KHz (5 GB/sec)100 Hz(100 MB/sec)
Data recording &offline analysis
100 events per second1 Pbyte per year for
offline analysis(CMS computing model)
V.A. Ilyin,, RIGF, 14 May 2010
WLCG – World-wide LHC Computing Grid, development from 2003.Now it is production system
Distributed analysis of LHC data over the Internet: Distributed analysis of LHC data over the Internet: 50000 jobs each moment and Pbytes of data for thousends of 50000 jobs each moment and Pbytes of data for thousends of physicistsphysicists
V.A. Ilyin,, RIGF, 14 May 2010
WLCG networking
Tier0 at CERN (data preprocessing)
12 Tier1 Centers (data processing)
Tier0 <-> Tier1s, Tier1s <-> Tier1s:
OPN (Optical Private Network) – 10-40 Gbps
150 Tier2 Centers (data analysis, Monte-Carlo)
Tier1s <-> Tier2s, Tier2s <-> Tiers:
GEANT, NRENS, ... commodity Interenet
DIGITAL DIVIDE !
V.A. Ilyin,, RIGF, 14 May 2010
Internet and Science1993-1994 two revolutionary events:
- NSF «presented» DNS to the «commodity» governance
- WWW had come from the science kindergarten to the adult life
During 90's-00's Internet has got many faces: - commercial - social - national - governmental - private - ...
Now science descryes (first of all) COMMERCIAL face of the Internet, with (afterwords) administrative actions at governmental levels
V.A. Ilyin,, RIGF, 14 May 2010
This consecusion: commercial face at first, and then governmental interventions in many cases (especially in developed countries)means lack of corresponding Internet Governance solutions for
Science life in Internet
... science should not be as VIP subcommunity in Internet ...
... science is (and will be, for sure) at the Internet technological top, showing realities for future innovations in commodity life ...
... science shows no direct commercial interests, but can play an accelerator role for trading Internet services ...
... the problem looks as local/specific etc, but ...No solutions on the surface ...
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