WLCG and the India-CERN Collaboration David Collados CERN - Information technology 27 February 2014.

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Presentation transcript:

WLCG and the India-CERN Collaboration David Collados CERN - Information technology 27 February 2014

Overview 2 The WLCG Project India-CERN Collaboration

7000 tons, 150 million sensors generating data 40 millions times per second producing 1 petabyte per second The ATLAS experiment

4 A collision at LHC The Worlwide LHC Computing Grid 4 ATLAS Experiment LHC Beam

The Data Acquisition 5 Data from ATLAS 1 PB/sec from all sub-detectors 1 GB/sec raw data sent to Data Centre Reduction factor of 1 million.

CERN Computer Centre (Tier-0): Acquisition, First pass reconstruction, Storage & Distribution The Worlwide LHC Computing Grid ALICE 1.25 GB/sec (ions) 2012: ~1 GB/sec 2012: ~300 MB/sec 2012: ~4GB/sec ATLAS ~320 MB/sec CMS ~220 MB/sec LHCb ~50 MB/sec

WLCG: Worldwide LHC Computing Grid Typical simultaneous jobs: more than 250,000 Global Transfer rate: billion bytes per second

Tier 0 (CERN) Data recording Initial data reconstruction Data distribution Tier 1 (12 centres) Permanent storage Re-processing Analysis 10 Gbit/s links Tier 2 (~140 centres) Simulation End-user analysis Overall ~150 sites, 39 countries 250,000 cores 173 PB of storage 2 million jobs/day WLCG: Worldwide LHC Computing Grid Tier-2 sites (about 140) Tier-1 sites Gbit/s links

WLCG sites in India 9 2 WLCG T2 sites in India –VECC (Kolkata) –TIFR (Mumbai) Used by ALICE & CMS experiments

Cooperation agreement signed in 1991 Research & Development for accelerators, detectors, computing, and high energy physics Around 30 Addenda have been completed In the last years on LHC and NAT projects (CTF3, CLIC, LINAC4, Computing) with RRCAT & BARC Solid State Modulator for Linac4 Vacuum chambers and magnets development, CTF3 controls software development 10 India-CERN Collaboration 27 Feb 2014

Protocol P060/LHC ( ), Computing and Grid Technology for LHC 76 FTE involved since 2002 (26 since 2008) Wide range of computational areas: – Fabric Management – Databases – Grid Monitoring – Visualization – Reporting – Cloud Infrastructure Management 11 Collaboration in Computing 27 Feb 2014

Visualisation of Grid Monitoring data – Status, availability, reliability of Grid services and sites – Tools for WLCG management Cloud Computing – Graphical management portal for OpenNebula and OpenStack backends – Identify CERN and WLCG quota management requirements – Integration of WLCG accounting schema 12 Computing area (last 2 years) 27 Feb 2014

Projects between BARC and CERN – 2 FTEs each Centralised Multi-level User Quota Management System for OpenStack OpenStack Enhancements for Physics Geant-V Optimisations 13 Computing (starting now) 27 Feb 2014

Conclusions Major Indian participation in LHC Very valuable collaboration in areas of common interest We want to continue this in the future 14