Grid Computing Reinhard Bischof ECFA-Meeting March 26 th 2004 Innsbruck

Grid: From local to global resource management Information System (Top) Certificate /C=AT/O=UIBK/OU=HEPG/CN=Nemo Replica Location Service Which resources are available ? Many, many other clusters Storage Where are the files I need ? Mapfile C=AT/O=UIBK/OU=HEPG/CN=Nemo.atlas job is executed e.g. as local user atlas003 PC Local resource management PBS Cluster 1 Master PC Local resource management condor Cluster 2 Master Gatekeeper Information system GridFTP Certificate /C=AT/O=UIBK/OU=HEPG/CN=host/grid.uibk.ac.at Gatekeeper Information system GridFTP

Atlas Data Challenge 2 3 Grid flavours will be used : Nordugrid –Sweden (15), Denmark (10), Norway (3), Finland (3), Slovakia (1), Estonia (1) –Nordugrid develops Grid middleware, assists in software deployment, is not dedicated to physics, is not limited to Nordic countries LHC Computing Grid (LCG) –based on middleware development of DataGrid project –resources in Europe, USA, Taiwan, Japan –goal: first truly world wide grid with 24h/7d/week operation (at least two Grid Operating Centres at two different time zones) Grid 2003 (US-Project) –25 sites across USA and South Korea High Energy Physics Innsbruck: participates in LCG as tier2

LCG Tier 1 GridKa Karlsruhe supports as primary site HEPHY Innsbruck in installing and testing the LCG-Cluster LCG-Cluster UIBK-HEPHY Tier2 (under evaluation) SE grid TB grid gate WN grid grid02-04 LCFG UI WN grid05 grid06

Grid CPUs Nordugrid 1499 CPUs LCG core sites: CNAF,CERN,FNAL,FZK,NIKHEF,PIC- Barcelona,RAL,Taipei 1844 CPUs (~1300 KSI2K) planned for 2Q: 3009 KSI2K

Access for grid users to student‘s PC-labs in Innsbruck during weekends, holidays, whenever they are not needed for teaching Cooperation between –High Energy Physics group (part of pilot grid project 1) : installation, providing scripts, testing, documentation for users) –Central Information Technology Service (ZID) –Institute of Computer Science 1) Innsbrucker Hochenergie-Grid-Projekt(Federal Ministry for Education, Science and Culture)

ZID-Grid (details) Strategy: be as flexible as possible –one cluster with adequate size for each group (virtual organization), cluster size can be changed easily (default: one lab = one cluster) –easily change resource management (OpenPBS, Condor or Sun Grid Engine), one configuration file/cluster (add other services) –one timetable/cluster for grid opening hours One wake up on lan server per location starts the machines of a cluster if the timetable says yes Status informations of all clusters (ganglia and Globus MDS) are collected by a server (agrid) Users: High Energy Physics, DPS (Distributed and Parallel Systems, Computer Science), Institute of Structural Analysis (starting next week),... and members of the AustrianGrid project.

ZID-Grid Master Slaves arch_14 Wake up on LAN server Technik DPS (Distributed and Parallel systems) Grid machines Student‘s lab Administration, Information collector, job submission status jobs agrid server start Innrain Sowi

AustrianGrid AustrianGrid project starts April 1 st 2004 initiated by High Energy Physics Partners in Vienna, Linz, Innsbruck 1 st technical meeting December 4th 2003: –several resources already available via grid Linz –SCI-Cluster 9 Knoten/18 CPUs, Myrinet Cluster 8 Knoten / 16 CPUs –SGI Altix CPUs, SGI Origin CPUs Vienna –Cluster Bridge 16*4 CPUs, Cluster Gescher 16 CPUs, other clusters Innsbruck –ZIDGrid-Cluster (~ 192 CPUs), 14 Cluster AustrianGrid certification authority in Vienna (L. Lifka VCPC), needs to be accepted by partners outside Austria (CPS Certificate Practice Statement prepared in Innsbruck, reviewed by partners) Upcoming activities –information system collecting status of all resources –adding grid gates to more resources