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501

Belle II

KEK

takanori.hara@kek.jp

2015 27 5 9

1

CERN ATLAS[1]

CMS[2] Higgs

[3,4]

LHC

B Belle II

Belle II

2 Belle II 2.1

2016 SuperKEKB

KEKB 4035 2 18 10 cm s

1.8 GB/s

501ab 100PB

100PB

CPU 10

CERN

(LHC)[5] ATLAS CMS Run1

Belle 1999 2010

1 1ab

KEK

Belle

Belle II

Belle 50

Belle II

23

99 600

LHC

Belle II

LHC

LHC

WLCG (Worldwide

LHC Computing Grid)[6]

LHC

Belle II

13

502

LHC

KEK WLCG

2006

VO (Virtual Organization)

CC1[7]

NeCTAR[8] Amazon EC2

CPU

LHC

Belle II

Belle II

2.2

Belle II

200

LHC

1

1 Belle II

SuperKEKB Belle II

KEK

Raw Data Center KEK

PNNL (Pacific

Northwest National Laboratory)

4

PNNL

mDST (mini Data Summary Tape)

Regional Data Center

Raw Data Center mDST

mDST

14

503

MC

Production Site

Ntuple

1 Local

Resource

Belle II

KEK

PNNL 1 1 Raw Data Center

mDST

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2.3

Belle II

LHCb[9]

DIRAC[10] DIRAC

EMI (European Grid

Initiative)[11] Open Science

Grid (OSG)[12]

2

DIRAC

DIRAC pilot job

pilot job

Belle II

pilot job

DIRAC

2 DIRAC [10]

AMGA

(ARDA Metadata Catalogue Project) [13]

AMGA

DIRAC

AMGA

Belle II basf2

Belle

II DIRAC

Belle II

Python gbasf2

g Grid wrapper software

15

504

gbasf2

Belle II

CERN CVMFS[14]

DIRAC

Belle II

Belle II

3 Belle II

CPU

Belle II

2013

Data Transfer Challenge

48 Stability test

400MB/s

1000MB/s

2014 6

ANA-100G (Advanced North Atlantic 100G Pilot)[15]

NREN(National Education

and Research Network GÉANT [16], ESnet[17],

GARR[18], DFN[19] PNNL

GridKa INFN Napoli

500MB/s

GB/s

(NII) [20] SINET5

2016 100Gbps

(2 10Gbps)

LHC

Tier2

LHCONE LHC Open Network Environment [21]

LHCONE

LHCONE

LHC

CERN NREN

2014 9 LHC

KEK

NII

Belle II

NREN NREN

pan-European research and education network

16

505

13

DIRAC

Belle II

DIRAC

4 Belle II

Belle II

Belle II Distributed Computing

2008

DIRAC

AMGA DIRAC Belle II

2012

2013 3 MC MC

production campaign

KEK CYFRONET DESY

GridKa SiGNET UA-ISMA

CESNET KISTI

PNNL FNAL

Belle II

20%

60M

2013 8 MC pro-

duction campaign 560M

2500

10%

DIRAC

2014 4

6,000M 10

2 MC production campaign

Belle II

15 31

11,000M

2

18,000

B-physics

LHCb

SuperKEKB

10

Belle II

3 3 MC Production Campaign

17

506

5 WLCG Belle II WLCG

WLCG LHC

LHC

WLCG

Belle II

2015 4

WLCG

Belle II KEK

WLCG Belle II

Belle II

5

Belle II

2016 9

2016 KEK

Belle II

2018

Belle II

2016

Belle II

Belle II

Belle II

[1] The ATLAS Collaboration, JINST 3 (2008) S08003.

[2] The CMS Collaboration, JINST 3 (2008) S08004.

[3] The ATLAS Collaboration, Phys. Lett. B716 (2012)

1-29.

[4] The CMS Collaboration, Phys. Lett. B716 (2012) 30-61.

[5] L. Evens and P. Bryant (editors), JINST 3 (2008)

S08001.

[6] Worldwide LHC Computing Grid ,

http://wlcg.web.cern.ch/ .

[7] J. Chwastowski, R. Grzymkowski, M. Kruk, et. al.,

Computer Science, 13, 2 (2012).

[8] NeCTAR, https://www.nectar.org.au/ .

[9] The LHCb Collaboration, JISNT 3 (2008) S080005.

[10] DIRAC : http://diracgrid.org/ .

[11] European Middleware Initiative ,

http://www.egi.eu/ .

[12] The Open Science Grid ,

https://www.opensciencegrid.org/.

[13] ARDA Metadata Catalogue Project ,

http://amga.web.cern.ch/amga/.

[14] P. Buncic, C. Aguado Sanchez, J. Blomer, L. Franco, S.

Klemer and P. Mato, PoS ACAT 08 (2010) 062057.

[15] The ANA-100G project,

https://www.nordu.net/content/ana-100g .

[16] The GÉANT Project Home ,

http://www.geant.net/Pages/default.aspx .

[17] ESNet, Energy Sciences Network ,

https://www.es.net/.

[18] GARR , The Italian Academic & Research Network,

http://www.garr.it/.

[19] DFN , The German National Research and Educa-

tion Network, https://www.dfn.de/.

[20] http://www.nii.ac.jp/.

[21] LHCONE : LHC Open Network Environment ,

http://lhcone.net/ .

18