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LondonGrid Status Duncan Rand. Slide 2 GridPP 21 Swansea LondonGrid Status LondonGrid Five Universities with seven GOC sites –Brunel University –Imperial.

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Presentation on theme: "LondonGrid Status Duncan Rand. Slide 2 GridPP 21 Swansea LondonGrid Status LondonGrid Five Universities with seven GOC sites –Brunel University –Imperial."— Presentation transcript:

1 LondonGrid Status Duncan Rand

2 Slide 2 GridPP 21 Swansea LondonGrid Status LondonGrid Five Universities with seven GOC sites –Brunel University –Imperial HEP and Imperial LeSC –Queen Mary –Royal Holloway –UCL Central and UCL-HEP Thirteen compute clusters, eight storage elements

3 Slide 3 GridPP 21 Swansea LondonGrid Status Administrative News Brunel – new sys-admin starts beginning October RHUL – sys-admin post vacant since Jan 08 - starting recruitment soon QMUL – sys-admin post vacant - about to be advertised Imperial - sys-admin went on maternity leave start Aug –Barry MacEvoy replaces her part time LondonGrid - recruited new Technical coordinator –0.25 FTE Imperial sys-admin –starts mid-September

4 Slide 4 GridPP 21 Swansea LondonGrid Status Brunel Site has been running OK over last 6 months –predominantly as CMS site but also ATLAS MC –however has recently suffered air conditioning problems –DPM too small and somewhat unreliable Recent purchase of 60TB disk and 1 MSI2k CPU - in process of installing Still only 400 Mbit/s WAN link Site news

5 Slide 5 GridPP 21 Swansea LondonGrid Status Imperial HEP –Workhorse ce00 running well –Mainly CMS analysis and MC –ATLAS MC jobs changed to stage out to RHUL SE –IBM cluster (gw39) retired –Recent purchase of 100 TB disk and ~2.4 MSI2k CPU –Added in new 120 WN to ce00 this week –Will the air conditioning cope? ICT/ LeSC –Essentially run ATLAS and CMS MC plus biomed

6 Slide 6 GridPP 21 Swansea LondonGrid Status Royal Holloway Manpower low - awaiting new system administrator Nevertheless commissioned new cluster in April 2008 Generally runs well Have had networking issues –WAN issues seem to have been related to external firewall Set up as CMS Tier-3

7 Slide 7 GridPP 21 Swansea LondonGrid Status Queen Mary No full time admin Makeover completed Now running SGE –CE gets overloaded need to upgrade it DPM on Lustre –works OK – 50 MB/s WAN access, not yet stress tested LAN –will replace DPM head node with modern machine (10 Gbit/s) Storm test SE – works OK but difficult to add ATLAS space tokens Running mainly ATLAS and biomed jobs –need to get CMS MC running ASAP

8 Slide 8 GridPP 21 Swansea LondonGrid Status University College UCL-Central finally passing SAM tests yesterday Need to complete acceptance tests, install ATLAS software and get MC running SE working –requires update of space tokens UCL-HEP purchasing new equipment- should bring online soon

9 Slide 9 GridPP 21 Swansea LondonGrid Status SAM test results Brunel - improved through year Imperial - –HEP - deteriorated –LeSC - consistently good QMUL - improving RHUL - improving UCL – could improve somewhat

10 Slide 10 GridPP 21 Swansea LondonGrid Status CPU contribution by site RHUL obvious arrival! QMUL/LeSC – increase

11 Slide 11 GridPP 21 Swansea LondonGrid Status CPU usage by VO CMS and ATLAS are the big users in last 6 months Also biomed LHCb still low Concentrating on CMS & ATLAS…

12 Slide 12 GridPP 21 Swansea LondonGrid Status CPU usage by month

13 Slide 13 CPU usage by Tier-2 GridPP 21 Swansea LondonGrid Status

14 Slide 14 GridPP 21 Swansea LondonGrid Status CMS Imperial (T2-London-IC) and Brunel (T2-London-Brunel) –Running OK –SEs quite full London plan to use non-CMS sites as CMS Tier-3s –Make use of T3-UK-London-RHUL cluster when ATLAS not using it –~75 TB CMS data already on site –Up to 100 MB/s download from multiple CMS Tier-1s –Running many analysis jobs (mostly Imperial users) –Just joined MC production –A real success in terms of supporting multiple VOs

15 Slide 15 GridPP 21 Swansea LondonGrid Status CMS download to T3_UK London_RHUL ppMuX_pt10 2.4TB transferred in an afternoon

16 Slide 16 GridPP 21 Swansea LondonGrid Status CMS analysis jobs From to

17 Slide 17 GridPP 21 Swansea LondonGrid Status CMS Site View Monitoring Page Excellent page summarising status of sites from CMS point of view The much sought after single source of information

18 Slide 18 Other VO s vo.londongrid.ac.uk for local users Set up local LFC catalogue for –supernemo.vo.eu-egee.org –mice –vo.londongrid.ac.uk UKQCD VO supported at RHUL –large memory jobs and possibly MPI GridPP 21 Swansea LondonGrid Status

19 Slide 19 GridPP 21 Swansea LondonGrid Status Conclusion Still suffering from an acute shortage of manpower –New Technical coordinator starting very soon and three admin posts will be filled in autumn – hopefully! Nevertheless Royal Holloway and QMUL sites brought on line and now contributing as ATLAS sites RHUL also acting successfully as CMS Tier-3 – MC and analysis Imperial and Brunel continue to service CMS and also run ATLAS MC Looking forward to increased contribution by UCL

20 Slide 20 GridPP 21 Swansea LondonGrid Status Thanks to all of the LondonGrid Team Mona Aggarwal, David Colling, Austin Chamberlain, Clare Gryce, Simon George, Kostas Georgiou, Barry Green, Paul Kyberd, William Hay, Alex Martin, Giuseppe Mazza, Henry Nebrensky,Gianfranco Sciacca, Keith Sephton, Ben Waugh, Jeremy Yates


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