Reports from meetings

1. Ian Bird WLCG Management Board CERN, 19th November 2013 Reports from meetings Ian.Bird@cern.ch

2. LHCC (24-26 Sept) Ian.Bird@cern.ch • Referees’ meeting • Main discussion – Computing model update draft • Attended by referees, LHCC chair, RSG chair • Followed by discussion in the LHCC closed session • See minutes (attached) • Followed by detailed comments and suggestions on the document draft • Goal to submit final version very soon – for approval at the December LHCC

3. Comments from LHCC Ian.Bird@cern.ch • The LHCC recommends that the hypothesis of flat future resources be removed from the assumptions; • instead physics motivated needs should be stated. • The optimization work towards best physics output should continue with the same momentum as in the past year, in parallel and beyond the preparation for the data taking restart in 2015. • In particular, the committee encourage the continuation of the intensive collaboration amongst the experiments and with WLCG on topical issues, the exchange of methods and the sharing of software frameworks. • In parallel with the planning work for the upgrade phases I and II, the experiments should also clarify the timelines for defining consolidated models for computing.

4. C-RRB (29th Oct) Ian.Bird@cern.ch • C-RSG recommendations to RRB – see RSG report attached to RRB agenda • Rebus to be updated to reflect this (ongoing) • The resource requirements for 2014-17 were shown to the RRB • General agreement that working assumption of flat budgets is a reasonable approach

5. CRSG comments/ recommendations Ian.Bird@cern.ch Run 2 requests have become more definite since Spring – assumed flat budgets; ALICE and LHCb scrutinised requests have not always been met at T1. RRB requested to help find a way to resolve this; CRSG strongly supports on going efforts to improve software efficiency, notes that resulting gains are already assumed in the requests for Run 2; Effectiveness of disk use only partly reflected in occupancy. Welcome efforts (popularity, etc.) but would like a metric to take account of access frequency; Networks have been exploited to reduce disk use and move processing between tiers. Concern that poorly networked sites will be underused and cost implications of providing network capacity.

6. Updated scrutiny schedule Ian.Bird@cern.ch • Spring of year n • Final scrutiny of requests for year n+1 and look beyond • Review use of resources in previous calendar year, n-1 • Autumn of year n • Look forward to requests for year n+2 and beyond • If necessary, consider year n+1 requests • For individual experiments if they want significant changes • Or for all experiments if, say, LHC running parameters change significantly • CRSG asks experiments to submit documentation on 1 February and 1 August

7. Overview Board (15th Nov) Ian.Bird@cern.ch • Updates on status of new Tier 1 sites • KISTI approved as full Tier 1 • Noted that 10 Gb connection is delayed, but now funding is secured and tendering under way • Had fulfilled all other tests • Got confirmation from countries running services needed by WLCG that this commitment remains independent of the EGI.eu funding evolution • Always within the limitations of national WLCG funding! • Discussion on • Computing model document – main points • E-Infrastructure vision and relationship to WLCG