1. Kolkata Tier-2 @ Status and Plan
Site Name :-
IN-DAE-VECC-02 VO :- ALICE City:- KOLKATA Country :- INDIA
Vikas Singhal
VECC, Kolkata, INDIA

2. Kolkata site on the MAP
Vikas Singhal, VECC, INDIA

3. 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

4. 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. : cm from IP
October 2009

5. The ALICE muon Spectrometer
Muon Tracking Chambers
The ALICE muon Spectrometer
5 stations of two Cathode Pad Chambers ~ 100 m2
1.1106 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 40280 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

6. Vikas Singhal, VECC, INDIA

7. ALICE MEMBERS FROM INDIA
13 INSTITUTES, 78 COLLABORATORS (ACDB March 2013)

8. 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, kCHF
Contribution to the Maintenance & Operation (Category B) 2013 budget* : 56 kCHF (Photon Multiplicity Detector and Muons Tracking)
*CERN-RRB
Vikas Singhal, VECC, INDIA

9. Kolkata On MonaLisa
Vikas Singhal, VECC, INDIA

10. ALICE Job completed during Last Year @Kolkata
More than Jobs
completed during
last one year
which is 1.15% of Total ALICE job.
Vikas Singhal, VECC, INDIA

11. 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

12. Kolkata Tier-2 after implementation of efficient cooling solution and renovation
Vikas Singhal, VECC, INDIA

13. NKN TOPOLOGY

14. 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

15. Kolkata Tier2 during last few years
2009
2007
Vikas Singhal, VECC, INDIA
2010
2011

16. 2008
2006
Vikas Singhal, VECC, INDIA
2010
2012

17. Last One Year Availability of Kolkata Tier-2
Vikas Singhal, VECC, INDIA

18. Kolkata::SE Components
One XrootD redirector and 4 Disk servers with 230TB of Storage.
Vikas Singhal, VECC, INDIA

19. Kolkata::SE Traffic
Vikas Singhal, VECC, INDIA

20. 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.

21. 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

22. 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.

23. 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.

24. Resource Contribution
As Per C-RRB Meeting and M&O A rule resources
contribution should be proportionate to Group size.
Vikas Singhal, VECC, INDIA

25. 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

26. Thank You
Vikas Singhal, VECC, INDIA