1 / 17

Status of Tokyo LCG Tier 2 Center for ATLAS

Status of Tokyo LCG Tier 2 Center for ATLAS. Hiroshi Sakamoto International Center for Elementary Particle Physics (ICEPP) The University of Tokyo. Contents. Fabric Network Service Challenge/Atlas CSC Atlas Analysis Structure inside Japan Resource Plan Update.

ranger
Download Presentation

Status of Tokyo LCG Tier 2 Center for ATLAS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Status of Tokyo LCG Tier 2 Center for ATLAS Hiroshi Sakamoto International Center for Elementary Particle Physics (ICEPP) The University of Tokyo

  2. Contents • Fabric • Network • Service Challenge/Atlas CSC • Atlas Analysis Structure inside Japan • Resource Plan Update

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

  4. Tape Robot Disk Arrays PC Servers

  5. T1-T2関係 R. Jones

  6. Tokyo-Taipei • Small round trip time (RTT) ~60ms • Relatively limited bandwidth ~620Mbps

  7. Tokyo-Lyon • Very large RTT ~300ms • Enough bandwidth ~10Gbps • Limited at end point ~1Gbps • Many hops

  8. TCP Tuning • Kernel 2.6 • TCP Congestion Control • TCP Reno • BIC TCP • +PSPacer • Precision Software Pacer • From AIST GridTCP project

  9. Atlas Computing System Commissioning

  10. Sinet3: New Japanese Academic Network Infrastructure SINET3 IP Router Core Layer Core L2 Switch Edge L2 Switch Edge Layer Ethernet I/Fs :L3(IP) :L2(Ethernet) :L1(dedicated) : Edge node (w/ edge L2 SW) : Core node (w/ core L2 SW + IP router) : 1G to 10G : 10G to 40G

  11. Atlas Analysis Structure In Japan • Use Tokyo Tier2 for user analysis • No grid sites for Atlas Japan under Tokyo for a while • For each institute • Install UI using TAR_UI • Site-info.def looks at Tokyo • Tutorial for Japanese users • Installing UI and Atlas software • Usage of gLite and Atlas release

  12. Resource Plan Update Original Updated Plan Atlas requirements: 100kSI2k – 42TB Major upgrade in 2010

More Related