status of tokyo lcg tier 2 center for atlas

Status of Tokyo LCG tier-2 center for atlas / H. Sakamoto / ISGC07

Status of Tokyo LCG Tier 2 Status of Tokyo LCG Tier 2 Center for ATLAS Center for ATLAS

Hiroshi SakamotoHiroshi SakamotoInternational Center for International Center for

Elementary Particle Physics Elementary Particle Physics (ICEPP)(ICEPP)

The University of TokyoThe University of Tokyo


ContentsContents

FabricFabric

NetworkNetwork

Service Challenge/Atlas CSCService Challenge/Atlas CSC

Atlas Analysis Structure inside JapanAtlas Analysis Structure inside Japan

Resource Plan UpdateResource Plan Update


http://aenews.cern.ch/body.php?issueno=200702


Disk ArraysPC Servers

Tape Robot


T1-T2T1-T2 関係関係TierTier--11——TierTier--2 Associations2 Associations

ASGCASGC Tier-2s in Taiwan and Melbourne

Receives simulation from Tokyo and Beijing

Can send AODs etc. to Tokyo and Beijing

BNLBNL All Tier-2s in the USA

CNAFCNAF All Tier-2s in Italy

FZKFZK All Tier-2s in Germany

CSCS, Krakow, Prague, Innsbruck

IN2P3IN2P3--CCCC All Tier-2s in France

Romania

Sends AODs etc. to Tokyo and Beijing

NDGFNDGF NDGF (Tier-2) and Ljubljana

NIKHEF/SARANIKHEF/SARA Tier-2s in Russia and Israel

Receives simulation from NorthGrid (UK)

[Receives any surplus simulation from Prague]

PICPIC All Tier-2s in Spain and Lisbon

RALRAL Sends AODs etc. to all Tier-2s in

the UK

Receives simulation from all Tier-2s in the UK except NorthGrid

TRIUMFTRIUMF All Tier-2s in Canada

R. Jones


Tokyo-TaipeiTokyo-TaipeiSmall round trip time (RTT) ~60msSmall round trip time (RTT) ~60ms

Relatively limited bandwidth Relatively limited bandwidth ~620Mbps~620Mbps


Tokyo-LyonTokyo-Lyon

Very large RTT ~300msVery large RTT ~300ms

Enough bandwidth ~10GbpsEnough bandwidth ~10GbpsLimited at end point ~1GbpsLimited at end point ~1Gbps

Many hopsMany hops


TCP TuningTCP TuningKernel 2.6Kernel 2.6

TCP Congestion ControlTCP Congestion ControlTCP RenoTCP Reno

BIC TCPBIC TCP

+PSPacer+PSPacerPrecision Software PacerPrecision Software Pacer

From AIST GridTCP projectFrom AIST GridTCP project


Atlas Computing System Atlas Computing System CommissioningCommissioning


: 1G to 10G

: Edge node (w/ edge L2 SW)

: Core node (w/ core L2 SW + IP router)

: 10G to 40G

EdgeEdgeL2 SwitchL2 Switch

CoreCoreL2 SwitchL2 Switch

SINET3

IP Router

Core Layer

Edge Layer

:L1(dedicated):L3(IP) :L2(Ethernet)

Ethernet I/Fs

Sinet3: New Japanese Sinet3: New Japanese Academic Network Academic Network

InfrastructureInfrastructure


Atlas Analysis Structure In Atlas Analysis Structure In JapanJapan

Use Tokyo Tier2 for user Use Tokyo Tier2 for user analysisanalysis

No grid sites for Atlas Japan No grid sites for Atlas Japan under Tokyo for a whileunder Tokyo for a while

For each instituteFor each instituteInstall UI using TAR_UIInstall UI using TAR_UI

Site-info.def looks at TokyoSite-info.def looks at Tokyo

Tutorial for Japanese usersTutorial for Japanese usersInstalling UI and Atlas softwareInstalling UI and Atlas software

Usage of gLite and Atlas releaseUsage of gLite and Atlas release


Resource Plan UpdateResource Plan Update

Japan, ICEPP, TokyoJapan, ICEPP, Tokyo PledgePledgedd

Planned to be pledgedPlanned to be pledged

20062006 20072007 20082008 20020099

20120100

20112011

CPU (kSI2k)CPU (kSI2k) 200200 10001000 10001000 10010000

30030000

30003000

Disk (Tbytes)Disk (Tbytes) 4040 200200 400400 400400 600600 600600

Nominal WAN Nominal WAN (Mbits/sec)(Mbits/sec)

10001000 20002000 20002000 20020000

20020000

20002000

Original

Updated Plan

Major upgrade in 2010Atlas requirements: 100kSI2k – 42TB

status of tokyo lcg tier 2 center for atlas

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