1. Ian Bird LHCC Referees Meeting; CERN, 12 th March 2013 March 6, 2013 Ian.Bird@cern.ch1

2. ASGC - Taipei On Feb 21, Academia Sinica, Taipei informed CERN DG that they intended to withdraw support for CMS as a Tier 1 and as a Tier 2 at ASGC - CMS have no physicists in Academia Sinica - ASGC has lost part of its funding from the National Science Council Response sent March 6 - Asking for clarification of intended timescales and to inform WLCG OB and RRB March 6, 2013 Ian.Bird@cern.ch2

3. March 6, 2013 Ian.Bird@cern.ch3

4. Update on KISTI-GSDC 1512 cores (63 WNs) with 3GB memory/core 1.042 PB Disks: old SE(100TB) will be removed; new storage will be delivered 1 Gbps Network to be upgraded to 2Gbps in coming April EMI-2 Migration done and on production (better behaviour than gLite-3.2) Tape – 1 PB capacity (expandable up to 3 PB, 2GB/s throughput) with 200 TB xrootd pool + 275 TB tape buffer – Functional tests done, Policy tuning on-going for xrootd, GPFS – Periodic test by ALICE shows good -> p-Pb data transfer scheduled to start on 7 th March

5. JINR CMS Tier-1 progress ● Disk & server installation and tests: done ● Tape system installation: done ● done ● Organization of network infrastructure and connectivity to CERN via GEANT (2 Gbps): done ● LHC OPN integration: postponed* ● Registration in GOC DB and APEL: done ● Tests of WLCG services via Nagios: done ● CMS-specific tests: in process * restructurising local network to ease integration with LHC OPN 2012(done)20132014 CPU (HEPSpec06) 144002880043200 Disk (Terabytes) 66031684224 Tape (Terabytes) 7257008000

6. RRC-KI Tier-1 progress ● Disk & server installation and tests: done ● Tape system installation: done ● Network connectivity to CERN via GEANT (2 Gbit/sec): done ● LHC OPN integration: postponed* ● Registration in GOC DB and APEL: done ● Tests of WLCG services via Nagios: done ● ATLAS-specific tests: in process, have preliminary results that look good * restructurising our network to ease integration with LHC OPN

7. ATLAS-specific activity ● Prepared services and data storage for the reprocessing of 2011 2.76 TeV reprocessing ● Currently commissioning Tier-1 resource for ATLAS: – Stress tests via HammerCloud – Reconstruction tests submitted by ATLAS experts – Functional tests via Panda and DDM ● Transferred 54 TB of input data to our storage element with transfer efficiency around 90%

8. March 6, 2013 Ian.Bird@cern.ch8

9. Data accumulated March 6, 2013 Ian.Bird@cern.ch9 Data written into Castor per week Volume of CERN archive 2012/13 Data written 2012/13 Data read

10. CPU usage March 6, 2013 Ian.Bird@cern.ch10

11. Operations March 6, 2013 Ian.Bird@cern.ch11

12. March 6, 2013 Ian.Bird@cern.ch12

13. Preparation for April RRB Met with RSG chair + LHCC referees in February Agreed an assumed running scenario for 2015, in order to produce requirements - 5.10^6 s of operation; less pileup in first part, increased in 2 nd part of year Discussed how to present 2015 needs - Potentially significantly increased trigger rates - Aggressive work during LS1 to enable the needs to be met with reasonable resource increases The estimates for 2015 are now somewhat less than the x2 feared; except for tape needs; - Ramp-up during 2015 – clearly early in the year less will be needed [Also agreed to set the disk usage “efficiency” to 1 to avoid confusion] March 6, 2013 Ian.Bird@cern.ch13

14. 2013  2015 resources March 6, 2013 Ian.Bird@cern.ch14 CPU TapeDisk 2013: pledge OR actual installed capacity if higher

15. Use of Tier 0 and HLT during LS1 During LS1; the Tier 0 resources will be used for analysis as well as re-processing - This is a different use pattern; requires more disk that Tier 0 functions Also the HLT farms will be extensively used to supplement the grid resources March 6, 2013 Ian.Bird@cern.ch15

16. March 6, 2013 Ian.Bird@cern.ch16

17. 14 January 2013 IT Department Meeting17 WIGNER Data Center After full refurbishment, hosting CERN Tier-0 From 1 january 2013

18. Data Center Layout & ramp-up 14 January 2013 IT Department Meeting18

19. Connectivity (100 Gbps) 14 January 2013 IT Department Meeting19

20. 513 Consolidation Project: Goals Solve the cooling issue for the critical UPS room - New UPS systems in a different location Increase critical UPS capacity to 600kW Restore N+1 redundancy for both critical and physics UPS systems Secure cooling for critical equipment when running on UPS and extend stored cooling capacity for physics when on diesel Decouple the A/C for CC from the adjacent office building Increase overall power capacity to 3.5MW 14 January 2013 IT Department Meeting20

21. 14 January 2013 21IT Department Meeting

22. March 6, 2013 Ian.Bird@cern.ch22

23. EC projects EMI (middleware) ends April 2013 EGI-SA3 (support for Heavy User communities) – ends April 2013 - Although EGI-Inspire continues for 1 more year These have impact on CERN groups supporting the experiments, as well as NGI support Consequences: - Re-prioritisation of functions is needed - Need to take action now if we anticipate attracting EC money in the future But there is likely to be a gap of ~1 year or more March 6, 2013 Ian.Bird@cern.ch23

24. Short term: Consolidation of activities at CERN WLCG operations, service coordination, support - Consolidate related efforts (daily ops, integration, deployment, problem follow-up etc) - Broader than just CERN – encourage other labs to participate Common solutions - Set of activities benefitting several experiments. Coordinates experiment work as well as IT-driven work. Experiments see this as strategic for the future; beneficial for long term sustainability Grid monitoring - Must be consolidated (SAM/Dashboards). Infrastructure becoming more common; focus on commonalities, less on experiment-specifics Grid sw development+support - WLCG DM tools (FTS, DPM/LFC, Coral/COOL, etc), information system; Simplification of build, packaging, etc.  open source community processes; (See WLCG doc)

25. Longer term Need to consider how to engage with EC and other potential funding sources However, in future boundary conditions will be more complex: (e.g. for EC) - Must demonstrate how we benefit other sciences and society at large - Must engage with Industry (e.g. via PPP) - HEP-only proposals unlikely to succeed Also it is essential that any future proposal is fully engaged in by CERN (IT+PH) and experiments and other partners March 6, 2013 Ian.Bird@cern.ch25

26. Background Requested by the LHCC in December: need to see updated computing models before Run 2 starts A single document to: - Describe changes since the original TDRs (2005) in Assumptions, models, technology, etc. - Emphasise what is being done to adapt to new technologies, to improve efficiency, to be able to adapt to new architectures, etc. - Describe work that still needs to be done - Use common formats, tables, assumptions, etc 1 document rather than 5 March 6, 2013 Ian.Bird@cern.ch26

27. Timescales Document should describe the period from LS1 – LS2 - Estimates of evolving resource needs In order to prepare for 2015, a good draft needs to be available in time for the Autumn 2013 RRB, so needs to be discussed at the LHCC in September:  Solid draft by end of summer 2013 (!) Work has started - Informed by all of the existing work from the last 2 years (Technical Evolution groups, Concurrency forum, Technology review of 2012) March 6, 2013 Ian.Bird@cern.ch27

28. Opportunities This document gives a framework to: - Describe significant changes and improvements already made - Stress commonalities between experiments – and drive strongly in that direction Significant willingness to do this Describe the models in a common way – calling out differences - Make a statement about the needs of WLCG in the next 5 years (technical, infrastructure, resources) - Potentially review the organisational structure of the collaboration - Review the implementation: scale, quality of service of sites/Tiers; archiving vs processing vs analysis activities - Raise concerns: E.g. staffing issues; missing skills; March 6, 2013 Ian.Bird@cern.ch28

29. Draft ToC Preamble/introduction Experiment computing models Technology review and outlook Challenges – the problem being addressed Distributed computing Computing services Software activities and strategies Resource needs and expected evolution Collaboration organisation and management March 6, 2013 Ian.Bird@cern.ch29

30. March 6, 2013 Ian.Bird@cern.ch30

31. Summary WLCG operations in good shape, Use of computing system by experiments regularly fills available resources - Concern over resources vs requirements in the future Tier 0 consolidation work close to complete, deployment beginning Important to take concrete steps now for future planning for support March 6, 2013 Ian.Bird@cern.ch31