Kolkata Tier-2 @ Status and Plan Site Name :- IN-DAE-VECC-02 VO :- ALICE City:- KOLKATA Country :- INDIA Vikas Singhal VECC, Kolkata, INDIA
Kolkata site on the MAP Vikas Singhal, VECC, INDIA
India in ALICE MUON arm m-pairs PMD photons at the core of the technology: Front-end electronics VLSI full-custom design and manufacturing: the MANAS chip (for PMD and MS) high tech PMD: 100% Indian Project Muon Spectrometer: worldwide collaboration, with India as major player -> Station 2 construction -> High Level Trigger Development Now Launching Upgrades: FoCal at the core of the Physics: PMD: on the track of flow chase surprises (DCC) Luminosity project (cross sections) Muon Spectrometer: solving the Quarkonia puzzle
Photon Multiplicity Detector 100 % Indian effort: Design, Fabrication, Installation and Data Acquisition PMD installation in the ALICE Cavern Physics Goal: Measurement of photon multiplicity and its spatial distribution in the forward region on an event-by-event basis η : 2.3 to 3.9 Z dist. : 361.5 cm from IP October 2009
The ALICE muon Spectrometer Muon Tracking Chambers The ALICE muon Spectrometer 5 stations of two Cathode Pad Chambers ~ 100 m2 1.1106 channels , occupancy < 5% (in Pb+Pb) Read out at 1 kHz Chamber thickness ~ 3% X0 Beam test results for the spatial resolution : 50 m for a required resolution < 100 m dedicated to the (di-)muons measurement (2.5<<4) Dipole Iron Wall Absorber y x z Manas electronic chip: 16-channel Amplifier, shaper, track-and-hold St 3, 4 & 5 : 140 slats (max size 40280 cm2) 2 stations of Trigger Chambers 5 stations of Tracking Chambers 1 & 2 : quadrant type 3, 4 & 5 : slats type Collaboration France, India, Italy, Russia
Vikas Singhal, VECC, INDIA
ALICE MEMBERS FROM INDIA 13 INSTITUTES, 78 COLLABORATORS (ACDB March 2013)
FINANCIAL CONTRIBUTION Funding Agencies: Department of Atomic Energy, Government of India (DAE) Department of Science and Technology, Government of India (DST) Contribution to the Maintenance & Operation (Category A) 2013 budget*: 41 Scientists, 335.8 kCHF Contribution to the Maintenance & Operation (Category B) 2013 budget* : 56 kCHF (Photon Multiplicity Detector and Muons Tracking) *CERN-RRB-2012-071 Vikas Singhal, VECC, INDIA
Kolkata On MonaLisa Vikas Singhal, VECC, INDIA
ALICE Job completed during Last Year @Kolkata More than 800000 Jobs completed during last one year which is 1.15% of Total ALICE job. Vikas Singhal, VECC, INDIA
Efficient Cooling Solution implemented Implemented Cold Air Containment in which Hot and Cold Air is separated. Since February 2012 running consistently and satisfactorily. Power usage effectiveness (PUE) =Total Facility Power/ IT Equipment Power = 1200Units / 816Unit per Day = 1.47 New Cooling solution reduced cooling power consumption by half. Earlier PUE factor was almost 2. Vikas Singhal, VECC, INDIA
Kolkata Tier-2 after implementation of efficient cooling solution and renovation Vikas Singhal, VECC, INDIA
NKN TOPOLOGY
connectivity with 10Gbps NKN Router in Computer Division Upgrading Backbone connectivity with 10Gbps 1GB optical Fibre Link L3 switch in Grid Computing Lab . 1 Gbps Ethernet Link XrootD Redirector gridce02 Grid-peer grid DNS Server XrootD Disk Servers 10 Gbps Fibre Link HP IBM SAN Storage ALICE Worker nodes Tier-3 Nodes ALICE Centre
Kolkata Tier2 during last few years 2009 2007 Vikas Singhal, VECC, INDIA 2010 2011
2008 2006 Vikas Singhal, VECC, INDIA 2010 2012
Last One Year Availability of Kolkata Tier-2 Vikas Singhal, VECC, INDIA
Kolkata::SE Components One XrootD redirector and 4 Disk servers with 230TB of Storage. Vikas Singhal, VECC, INDIA
Kolkata::SE Traffic Vikas Singhal, VECC, INDIA
Total Kolkata Tier-2 Resources Computing Resources:- Total :- 476 Cores DELL Blades 32 * 8 = 256 HP Quad Core Blades 8*8= 64 HP Blades 39 * 4 = 156 Storage :- 230TB under one HP 2U Management Server 74TB : HP EVA 6100 under 2 * 2U HP disk server 156TB : IBM DS 5100 under 2 * 1U IBM disk server 1Gbps Network speed. Implementing 10 Gbps backbone Network.
Middleware installation on IN-DAE-VECC-02 Site 1.Installed SLC 6.4 (x86_64) operating system With EMI-2 Configuration. 2. Installed following middleware packages on x86_64 machine. glite-VOBOX EMI CREAM-CE (64bit) Pure XROOTD Redirector as Storage Element EMI-BDII glite-WN (64bit) grid01.tier2-kol.res.in gridce02.tier2-kol.res.in dcache-server.tier2-kol.res.in For 79 Worker Nodes (476 core) wn045-wn123.internal.tier2-kol.res.in Vikas Singhal, VECC, INDIA
Software upgradation during last 6 months. WLCG Grid middleware is changed from gLite-3.2 to EMI -2. Support for gLite-3.2 stopped since 1st November 2012. Kolkata Tier-2 upgraded to EMI-2 Successfully. Site is running fine after upgradation to EMI-2. ALICE Experiment require software installation via Torrent. Torrent based package installation implemented on all the WNs. Now No NFS shared area on WNs, On the fly install required packages on individual WN via torrent.
Grid-Peer Tier-3 Cluster 16 Number of Dell M610 Blade servers each with 2 * Intel Quad Core E5530 Xeon 2.4GHz CPU 8MB cache and 16GB RAM. Extensively used by VECC users and PMD Collaborators. 25TB +12TB of iSCSI storage. 75 + active users (across India.) 45 + active users (in VECC.) Procuring tape based backup solution for backup of Tier-3 storage.
Resource Contribution As Per C-RRB Meeting and M&O A rule resources contribution should be proportionate to Group size. Vikas Singhal, VECC, INDIA
Future Plan and Discussions Kolkata Tier-2 physical space is major concern. Planning to increase Disk Capacity. Discussion going on for new Tier-2 centres in India. GPU Related computation and research. Vikas Singhal, VECC, INDIA
Thank You Vikas Singhal, VECC, INDIA