WLCG Management Board #303 (ZOOM-ONLY meeting)

Tuesday 20 Dec 2022, 16:00 → 18:00 Europe/Zurich

Simone Campana (CERN)

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

URL for the ZOOM call: https://cern.zoom.us/j/65570204018  (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  655 7020 4018 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

Minutes

We have two new T1 candidates: IHEP (China) and NCBJ (Poland) both initially for the LHCb experiment. Following the WLCG procedure, their presented their plans at the December 2022 Overview Board and the OB endhorsed them as proto-T1. The Management Board should define a set of milestones, in agreement between the T1(s) and the experiment(s) and monitor the ramp up of the proto-T1 to reach maturity as T1, The MB should recommend full T1 status to the OB when all milestones are achieved. Early next year we should start this process. Congratulations to IHEP and NCBJ for completing the first step.  

16:05 → 16:10 Action List Review

Action List

16:10 → 16:20 WLCG Service Report

Speakers: Katarzyna Maria Dziedziniewicz-Wojcik (CERN), Maarten Litmaath (CERN)

WLCG-svc-report-20Dec2022-v1.0.pdf

WLCG-svc-report-20Dec2022-v1.0.pptx

16:20 → 16:30 WLCG flat budget discussion

Speaker: Simone Campana (CERN)

221208_WLCG_OB_FlatBudget-2.pdf

The WLCG study group looking at the evolution/re-definition of the Flat Budget model met on Nov 28. Dave Britton presented a summary of the discussion at the WLCG Overview Board on Dec 8th. The Overview Board agreed with the proposed next steps: 

 

• Better estimate what "Flat Budget" can buy every year => collect from all T1s (or regions with a T1) the annual variation for each hardware type. E.g. in UK the price of CPUs in 2022 is XXX% less than in 2021, the proce of disk in 2022 is YYY% less than in 2021 (see slides 3 and 4). The countries that can provide also an estimate including cost of energy should do so
• Define a "WLCG currency" that allows to compare the costs of CPU, disk and tape. For example, in the UK, 1TB of disk = 6HS06 of CPU = 3TB of tape (see slide 7)

In early 2023 we will have a second meeting to discuss how we will collect those numbers and we will then start the process. 

 

Today we have the following people in the group. We need a contact from DE and NDGF for the next step  

 

Dave Mason (FNAL)

Andre Melo (Vanderbilt)

Daniele Cesini (CNAF)

Bernd Panzer (CERN) 

Alessandro Di Girolamo (CERN) 

Shawn McKee (Michigan)

David Britton (Glasgow) 

Alastair Dewhurst (RAL) 

Christopher Hollowell (BNL)

Shigeki Misawa (BNL)

Zaytsev, Alexandr (BNL)

Pepe Flix (PIC)

Reda Tafirout (TRIUMF)

James Letts (UCSD)

Benoit Delaunay (IN2P3)

Magchiel Bijsterbosch (NLT1)

   

16:30 → 16:40 Future of Linux at CERN and Fermilab

Speakers: Dr Arne Wiebalck (CERN), Dirk Duellmann (CERN)

WLCG MB Meeting 20 December 2022.pdf

16:40 → 16:50 Proposal of suspension implementation plan affecting ITEP and IHEP

Speaker: Tiziana Ferrari (EGI.eu)

2022-12-20 EGI response to 6th sanction package of the EC.pdf

2022-12-20 EGI response to 6th sanction package of the EC.pptx

16:50 → 16:55 CERN annual closure

Speaker: Dirk Duellmann (CERN)

Electricity Outage scenario

Service availability during CERN annual closure

16:55 → 17:00 WLCG/HSF workshop

Speaker: Simone Campana (CERN)

We plan to host the traditional pre-CHEP HSF/WLCG workshop on 6-7 May 2023 in Norfolk. We had a good experience with the format of the Adelaide pre-CHEP workshop: 2x 1/2 days between Saturday and Sunday. We plan to repeat the same format and run the workshop possibly on Saturday afternoon and Sunday morning (details to be understood). we identified two topics that we believe would benefit from a joint WLCG and HSF discussion: 

 

• analysis facilities as the natural point of contact between facilities, software experts and analysis users 
• non-x86/heterogeneous hardware focusing on how the facilities would provide access to that hardware based on the progress of the sw communities and the needs of the users   

 

We have discussed briefly with the LHC computing coordinators and some of the facilities and everyone was positive about these ideas. We should progress quickly as we need to have more firm ideas about format and content before the end of January (time when the next CHEP bulletin is expected). We should identify soon a few experts from WLCG and HSF to lead the organisation of the scientific program. 

 

17:00 → 17:10 Plans for HEPScore

Speakers: Domenico Giordano (CERN), Randall Sobie (University of Victoria (CA))

WLCG-MB-20-12-2022-giordano.pdf

17:10 → 17:15 Virgo as WLCG observer

Speaker: Dr Stefano Bagnasco (Istituto Nazionale di Fisica Nucleare, Torino)

Virgo_WLCG.pdf

Dear Simone,

in the last few years Virgo, the Gravitational-wave experiment at the European Gravitational Observatory in Italy, is extending and upgrading its distributed computing infrastructure in collaboration with the US-based LIGO Scientific Collaboration (and partially with KAGRA, the Japanese observatory), adopting architectures and tools mostly developed and adopted by the HEP community (HTCondor, Rucio, CVMFS,...) and creating a shared computing infrastructure.

In the past years we have been using computing resources at several WLCG sites: besides our “Tier-1” centres at CNAF and CC-IN2P3, PIC, Cyfronet, UCLouvain, Wigner, SURFsara and the NIKHEF Tier-1 have provided dedicated or opportunistic resources to Virgo, and this will grow in the future with the upcoming O4 observational run scheduled to begin in March 2023 and even more with the enhanced sensitivity foreseen for O5 in 2025-2026.

So, in order to enhance our coordination with Computing Centres and other experiment collaborations, we would like to apply for Observer status in the WLCG Collaboration.

I will also add that the Einstein Telescope Collaboration, which is designing the next-generation European Gravitational-wave observatory, is starting to plan for its first organised Mock Data Challenges; waiting for  its computing activities to structure themselves, this could also be an informal way of keeping in touch with that community as well.

Thanks,
Stefano Bagnasco

Computing coordinator, AdvancedVirgo collaboration
Einstein Telescope Collaboration e-Infrastructure Board cochair

 

17:15 → 17:25 AOB