ILDG7 report from Japan

Plans for data generation & archiving on ILDG

Hideo Matsufuru

High energy accelerator Research Organization (KEK)

8 Dec 2005

National lattice datagrid in Japan

now in preparation to start-up

major LQCD sites (Tsukuba, KEK, Kyoto, Hiroshima, etc.)

backbone: HEPNET-J/sc – uses Gbps network SuperSINET

shares configurations (LQA, new configs)

now: mirroring between file servers

future: middleware for uniform file system – investigation started

extends LQA for ILDG

JLDG: Japan Lattice DataGrid

Computer resources

Tsukuba Univ.

PACS-CS (June 2006-) 14.3 Tflops

VPP 5000 0.8 TFlops

KEK (March 2006-)

Blue Gene/L 57.3 TFlops

SR11000 2.15 TFlops

Osaka Univ. (not QCD dedicated, 1/4-1/6 available)

SX-5 1.3 Tflops -> 24+ TFlops (Jan 2007-)

Yukawa Inst., Kyoto Univ. : SX-8 1 TFlops (Jan 2006-)

Hiroshima Univ. : SR11000 0.7 TFlops

Data generation plan

PACS-CS Collab. (mainly uses PACS-CS)

Tsukuba, Hiroshima, ...

Nf=2+1, NP improved Wilson, Iwasaki gauge

JLQCD Collab. (mainly uses BG/L at KEK)

KEK, Tsukuba, Kyoto, Hiroshima

Dynamical overlap fermions (actions/parameters not yet fixed)

Large scale projects

Generated confs will be available to JLDG and ILDG eventually

(Access policy under discussion).

Other collaborations in Japan (QCD-TARO, Kanazawa, Kyoto, etc.)

will also be invited to JLDG.

2005-12-07T19:49:33