1. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks

2. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks Infrastructure and OpsCentre Currently 6 sites and OpsCentre DIAS, NUIG, TCD, UCC, UCD, QUB More sites in 2005 (MiniGateWays) VOs: CosmoGrid, MarineGrid, TestGrid, Webcom-G, EGEE/LCG National Services and helpdesk at TCD

3. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks MiniGateway Rollout Donated by DELL Ireland Dell 1750 2GB Ram SCSI (2 x 160 GB) Extending Grid access to additional third level institutions Rollout started Jan05 Sites chosen by competitive survey

4. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks MiniGateway Architecture Based on Xen Linux Kernel Six virtual machines on one physical computer Minimises (hardware) cost associated with joining the Grid Out performs UserMode-Linux by a factor of 10

5. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks HEAnet & HEC Gateways Catch-all Gateway proposed to function as access point for Government institutions (GSI, Met Eireann, Marine Institute,....) HEC Gateway to provide access to the recently announced High Performance Computing Centre - 1000+ CPUs. will connect to DIAS and NUIG CosmoGrid clusters

6. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks EGEE/LCG2 Status csTCDie connected to LCG-2 since Oct04

7. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks EGEE/LCG2 direction This is not without its problems csTCDie on LCG2 and Grid-Ireland, no Multi VO support in R-GMA, but expected later. Grid-Ireland has helped enhance software Routing Queue, Heterogeneity - Fedora, IRIX, AIX Info-Provider problems, accounting(?) Transition to Quattor/SL3 Still yet an unknown, test on TestGrid

8. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks Users & Use Mostly MPI application developers MPI installed on sites using INFN Howto 110 (x2) CPU goes live at UCD - Feb 7th 2 GB RAM per processor Intel EM64T, 3.2 GHz CPU - RH EL 3.0 Routing Queue connection to Grid- Ireland

9. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks A J-band extinction map showing the Chameleon dark clouds extracted from our map created using the Grid-enabled program - G Murphy, D Froebrich, J Walsh (2005). Users & Use

10. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks Network Topology TCD Grid-Ireland Gateway (x3) Grid-Ireland National Servers (x16) Shared Cluster (16 CPUs) Shared Cluster (16 CPUs) SoloVO Cluster (16 CPUs) Internet TCD Router Dept. Router Firewall Switch RAID 1 RAID 2 RAID 3 TestGrid (x36) CrossGrid Testbed (32 CPUs) Firewall csTCDie Site

11. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks TestGrid Multifaceted Testbed Validating latest software release Testing experimental middleware Porting to non-reference platforms Implements multiple sites Replicates setup of some sites Special router - layer II filtering

12. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks LCG officially only supports RH7.3 and Scientific Linux Porting has involved many man-months effort Ports for Fedora, IRIX, AIX Now working on Mac OSX Localised Autobuild system - rebuilds nightly Local software - SANTA-G Porting & Autobuild

13. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks Grid is ideologically heterogeneous Means for reliably measuring Grid Performance Tests Grid resources at different levels - WN level, Cluster level, … Collaboration with University of Cyprus 11separate tests

14. Grid-Ireland:The National Computational Grid for Ireland Grid use in Ireland Infrastructure and OpsCentre EGEE/LCG2 direction MiniGateway Rollout MiniGateway Architecture HEAnet & HEC Gateways EGEE/LCG2 Status Dissemination Network Topology Users & UseTestGrid Porting & Autobuild Heterogeneity & Benchmarks Dissemination Workshop for grid sysadmins: September 20 th -22 nd 2-day introduction to LCG2 1-day technical discussions First Users course (Dec 9th & 10th) User Project provided template for writing Grid- enabled application (non MPI). Second Users course (Jan 21st) focus on quick start introduction to Grid