WLCG Management Board #341

Tuesday 16 Jun 2026, 16:00 → 18:00 Europe/Zurich

513/R-068 (CERN)

16:00 CERN/10:00 EDT/09:00 CDT

URL for the ZOOM call: https://cern.zoom.us/j/66011416092  (the passcode has been distributed by email)

To join by phone (see the dedicated support page):
1) dial your local ZOOM number (e.g. +41432107108) then enter the MB meeting ID  660 1141 6092 then #
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Email Distribution List: worldwide-lcg-management-board@cern.ch
Email List Archive: worldwide-lcg-management-board (requires CERN authentication)
Minutes: Management Board Meeting Minutes
Action List: MbActionList
See also the: WLCG Document Repository,  WLCG Web Site

16:00 → 16:05 Minutes and Matters Arising

• We had an Overview Board meeting yesterday. We are happy to inform you that Bucharest T1 (for ALICE) has been fully endorsed. Pledges will be already inserted in CRIC this September, to be active for 2027. Romania will also be asked to identify a MB member.
• The situation with Serbia (a proposed T1 for CMS) is less clear. No contact with CMS has been reported since last OB, and Serbia was not present at the meeting. A written report was requested and sent; it highlights some improvements happened since the last OB, but also highlights an ongoing change of management structure. A closer contact with the experiment and an update of the schedule and the structure will be requested, together with a full report at the next OB.
• Two weeks ago there was a LHCC meeting, and in the computing section experiments were especially requested to discuss GPU related activities (and the improvements since the last LHCC). The (draft) list of recommendations is quite long this time, with a focus on the handling of dark data (this comes after the RRB decision to cut by 50% the disk increases for CMS and ALICE). There are been two recommendations about (i) a continuous monitoring of the IT resources hardware cost and (ii) the request to propose concrete measures to reduce the gaps between the needs, the pledged and the installed capacity.
• Last week we had the first organization meeting on the “GPU activity”, as in the matters arising from the last MB. Stefano Piano will convene discussions with the groups asap – as urgent also due to the WLCG Technical Roadmap.
• Tomorrow there will be the Face2Face of the Resource Planning and Pledging Task Force. The aim is to find agreement in order to start drafting a document.
• WLCG/HSF WS in Bologna (Nov 2nd-6th): block agenda now done; registrations expected to start ~ end of June. 
• Cath has sent out the mail for the procedure to insert 2027 pledges in CRIC. The deadline is Monday 14 September.

16:05 → 16:10 Action List Review

16:10 → 16:20 WLCG Service Report

Speakers: Borja Garrido Bear (CERN), Maarten Litmaath (CERN)

WLCG-svc-report-260617-v11.pdf

WLCG-svc-report-260617-v11.pptx

16:20 → 16:30 TCB Report

Speakers: Alessandro Di Girolamo (CERN), James Letts (Univ. of California San Diego (US))

WLCG Technical Coordination

• The plenary presentation by the TCB on the WLCG Technical Roadmap at CHEP26 on May 26th was well-received. Indico: https://indico.cern.ch/event/1471803/contributions/6968221/

• In the meetings two weeks ago with the WLCG LHCC Referees, they endorsed the WLCG approach to be technically ready to use GPU, if needed/wanted by the experiments, in the future. Stefano Piano (former ALICE computing coordinator) is going to coordinate between the WLCG and experiments on heterogeneous architecture plans and will join the chapter facilitators 

• Planning has begun for OTF#12 (Aug. 25-26, 2026) with a likely theme of AI in WLCG operations and services, as well as planning for heterogeneous architectures (GPUs). We do not have yet a clear “problem statement” for this WLCG OTF, feedback/inputs are welcome.

16:30 → 16:35 AOB