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

LHC project started in 1996. First production session: April 2010 — end of 2011.

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

Challenge: production over IP ...

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 ...