Name: WLCG/HSF Workshop 2025
Start: 2025-05-05T12:00:00+02:00
End: 2025-05-09T14:00:00+02:00
Location: IJCLab, Paris

WLCG/HSF Workshop 2025

from Monday 5 May 2025 (12:00) to Friday 9 May 2025 (14:00)

Monday 5 May 2025 ¶

12:00 Registration + Welcome Drink
Registration + Welcome Drink
12:00 - 13:30
Room: Auditorium P. Lehmann, Building 200
13:30 Opening
Opening
13:30 - 14:35
Room: Auditorium P. Lehmann, Building 200
Contributions

13:30 Welcome to Paris - Michel Jouvin (Université Paris-Saclay (FR))

13:45 Introduction - WLCG - David Britton (University of Glasgow (GB)) Simone Campana (CERN) Tommaso Boccali

14:10 Introduction - HSF - Eduardo Rodrigues (University of Liverpool (GB)) Paul James Laycock (Universite de Geneve (CH))
14:35 AI and WLCG/HSF
AI and WLCG/HSF
14:35 - 17:40
Room: Auditorium P. Lehmann, Building 200
Contributions

14:35 AI & WLCG/HSF - scope of the session - Alessandro Di Girolamo (CERN) Paul James Laycock (Universite de Geneve (CH))

14:40 AI and Facilities - Ilija Vukotic (University of Chicago (US))

15:45 AI/ML for Physics use cases - Tommaso Boccali

16:20 Heterogeneous resources and experiment software - Paolo Calafiura (Lawrence Berkeley National Lab. (US))

16:55 Facilitiy view: Heterogenous resources deployment and usage - Ben Jones (CERN) Rodney Walker (Ludwig Maximilians Universitat (DE))

17:20 Discussion
18:15 Welcome reception
Welcome reception
18:15 - 19:45
Room: Cafeteria, building 200
Tuesday 6 May 2025 ¶

08:30 Welcome coffee
Welcome coffee
08:30 - 09:00
Room: Cafeteria, building 200
09:00 Common software and Software Projects
Common software and Software Projects
09:00 - 12:30
Room: Auditorium Joliot Curie, Building 100
Contributions

09:00 ROOT: Taking stock of the Run 3 experience towards ROOT7 - Danilo Piparo (CERN)

09:30 Latest Developments in RooFit and Plans - Jonas Rembser (CERN)

10:00 Introduction to the Virtual Research Environment: an end-user perspective - Sukanya Sinha (The University of Manchester (GB))

11:00 Accelerating HEP detector simulations using G4HepEm - Mihaly Novak (CERN)

11:20 AdePT - Offloading electromagnetic showers in Geant4 simulations to GPU - Severin Diederichs (CERN)
Facilities
Facilities
09:00 - 10:30
Room: Auditorium P. Lehmann, Building 200
Contributions

09:00 Summary of the HEPiX Spring 2025 Workshop - Jose Flix Molina (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))

09:20 Status and evolution of French sites - Laurent Duflot (CNRS (FR))

09:40 Storage relocation: INFN-CNAF experience - Andrea Rendina

10:00 Responding Faster: Lessons from a security incident - Jose Carlos Luna Duran (CERN)
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: Cafeteria, building 200

11:00 Token Migration Plan
Token Migration Plan
11:00 - 12:30
Room: Auditorium P. Lehmann, Building 200

12:30 Lunch
Lunch
12:30 - 14:15
Room: Cafeteria, building 200
14:15 Analysis at scale and analysis challenges
Analysis at scale and analysis challenges
14:15 - 18:25
Room: Auditorium P. Lehmann, Building 200
Contributions

14:15 User experience - Albert Gyorgy Borbely (University of Glasgow (GB))

14:30 CMS analysis facility contribution - Oksana Shadura (University of Nebraska Lincoln (US))

14:45 ATLAS analysis facility contribution - Emma Torro Pastor (Univ. of Valencia and CSIC (ES))

15:00 Understanding the scale of HL-LHC physics analyses - Alexander Held (University of Wisconsin Madison (US)) Oksana Shadura (University of Nebraska Lincoln (US))

16:00 LHCb analysis facility contribution - Nicole Skidmore (University of Warwick)

16:15 ALICE analysis facility contribution - Maarten Litmaath (CERN)

16:30 Exploiting extremely-parallel technologies for future large-scale physics analyses demands - Jonas Rembser (CERN)

16:50 Proposal for Interdisciplinary Analysis Facilities - Thomas Hartmann (Deutsches Elektronen-Synchrotron (DE))

17:05 Analysis at the HL-LHC: Data Delivery, ServiceX, and Addressing Our Analysis Challenges - Gordon Watts (University of Washington (US))

17:45 Structured Discussion - Alessandra Forti (The University of Manchester (GB)) Nicole Skidmore (University of Warwick)
Wednesday 7 May 2025 ¶

08:30 Welcome coffee
Welcome coffee
08:30 - 09:00
Room: Cafeteria, building 200
09:00 Sustainable Software
Sustainable Software
09:00 - 12:30
Room: Auditorium P. Lehmann, Building 200
Contributions

09:00 The European Virtual Institute for Research Software Excellence (EVERSE) - Graeme A Stewart (CERN)

09:20 The EVERSE/ESCAPE use cases: evaluating and improving the quality of HEP software - James Smith (The University of Manchester (GB)) Michael Sparks (BBC) Tobias Fitschen (The University of Manchester (GB))

09:40 The EVERSE Research Software Quality Toolkit - Michael Sparks (BBC)

10:00 Scikit-HEP project news and future directions - Eduardo Rodrigues (University of Liverpool (GB))

11:00 Marionette: Data Structure Description and Management for Heterogeneous Computing - Nuno Dos Santos Fernandes (Laboratory of Instrumentation and Experimental Particle Physics (PT))

11:20 Julia: Sustainability and Efficiency - Graeme A Stewart (CERN)
Open Technical Coordination Board
Open Technical Coordination Board
09:00 - 12:30
Room: Auditorium Joliot Curie, Building 100
Contributions

09:00 WLCG Technical Roadmap - introduction - Alessandro Di Girolamo (CERN) James Letts (Univ. of California San Diego (US))

09:25 Technical Roadmap - setting the scene - estimates of requirements for Run4 and Run5 - Ben Couturier (CERN)

09:45 Technical Roadmap - setting the scene - estimates on capacity increase at flat budget scenario - Andrea Sciabà (CERN)

10:00 Discussions on the structure and the content of the chapters - Alessandro Di Girolamo (CERN) James Letts (Univ. of California San Diego (US))

11:00 Discussions on the structure and content of the chapters - Alessandro Di Girolamo (CERN) James Letts (Univ. of California San Diego (US))
12:30 Lunch
Lunch
12:30 - 14:15
Room: Cafeteria, building 200
14:15 Training Working Group
Training Working Group
14:15 - 18:05
Room: Auditorium Joliot Curie, Building 100
Contributions

14:15 Overview, goals - Michel Hernandez Villanueva (Brookhaven National Laboratory (US))

14:30 The EVERSE training and recognition plan - Kenneth Brian Rioja (IT-FTI)

15:00 GWOSC and gravitational-wave data analysis training - Massimiliano Razzano Stefano Bagnasco (Istituto Nazionale di Fisica Nucleare, Torino)

16:00 Training on sustainable computing at DESY - Christoph Wissing (Deutsches Elektronen-Synchrotron (DE))

16:30 User Learning for ePIC - Holly Szumila-Vance (Florida International University)

17:00 HOWTO Train: the HSF Training experience - Michel Hernandez Villanueva (Brookhaven National Laboratory (US))
Operations
Operations
14:15 - 18:00
Room: Auditorium P. Lehmann, Building 200
Contributions

14:15 Introduction to the OPS session - Julia Andreeva (CERN)

14:20 AUDITOR. First results of the assessment by the WLCG sites - Alessandro Pascolini (Universita e INFN, Bologna (IT)) Alexander Raphael Kleinemuhl (Bergische Universitaet Wuppertal (DE)) Maria Alandes Pradillo (CERN) Max Fischer (Karlsruhe Institute of Technology) Michael Boehler (Deutsches Elektronen-Synchrotron (DE)) Michael Boehler (University of Freiburg (DE)) Thomas Hartmann (Deutsches Elektronen-Synchrotron (DE))

16:10 Accounting of jobs submitted with tokens and changes required in the WLCG accounting infrastructure.

16:25 GGUS: past, present, future

17:10 Job Allocation and Handling, status report from the WG - Antonio Perez-Calero Yzquierdo (Centro de Investigaciones Energéticas Medioambientales y Tecnológicas)
Thursday 8 May 2025 ¶

08:30 Welcome coffee
Welcome coffee
08:30 - 09:00
Room: Cafeteria, building 200
09:00 Environmental Sustainability
Environmental Sustainability
09:00 - 12:30
Room: Auditorium P. Lehmann, Building 200
Contributions

09:00 Introduction - Caterina Doglioni (The University of Manchester (GB)) David Britton (University of Glasgow (GB))

09:25 Power Accounting in Heterogeneous Compute Clusters - Emanuele Simili

09:50 Environmental impact, carbon and sustainability of computing in the ATLAS experiment - Caterina Doglioni (The University of Manchester (GB))

10:15 Green software in HEP: benchmarks and studies on MC generators - Luis Villar (University of Manchester) Tobias Fitschen (The University of Manchester (GB))

11:00 Discussion on power accounting benchmarks (plus flash talks)

11:45 Discussion with inputs from experimental collaborations
12:30 Lunch
Lunch
12:30 - 14:15
Room: Cafeteria, building 200

14:15 BOF (Birds Of a Feather)
BOF (Birds Of a Feather)
14:15 - 17:30
Room: Auditorium Joliot Curie, Building 100
DOMA - Working Groups and Data Challenges
DOMA - Working Groups and Data Challenges
14:15 - 17:30
Room: Auditorium P. Lehmann, Building 200
Contributions

14:15 Introduction and Status of DOMA - Johannes Elmsheuser (Brookhaven National Laboratory (US)) Katy Ellis (Science and Technology Facilities Council STFC (GB))

14:35 Rucio in DOMA - Martin Barisits (CERN)

14:55 FTS evolution towards DC27 - Mihai Patrascoiu (CERN) Steven Murray (CERN)

15:45 Status of Monitoring of DOMA components - Borja Garrido Bear (CERN)

16:05 Status of DOMA BDT activity - Mihai Patrascoiu (CERN) Petr Vokac (Czech Technical University in Prague (CZ))

16:30 Mini data challenges - Johannes Elmsheuser (Brookhaven National Laboratory (US)) Katy Ellis (Science and Technology Facilities Council STFC (GB))
15:00 Collaboration Board - by invitation only
Collaboration Board - by invitation only
15:00 - 17:00
Room: Salle 139, Building 200

20:00 Social Dinner
Social Dinner
20:00 - 22:00
Friday 9 May 2025 ¶

08:30 Welcome coffee
Welcome coffee
08:30 - 09:00
Room: Cafeteria, building 200
09:00 Closing
Closing
09:00 - 12:00
Room: Auditorium P. Lehmann, Building 200
Contributions

09:30 Computing Challenges for the Einstein Telescope - Paul James Laycock (Universite de Geneve (CH))

09:55 Recap and next steps - DOMA and WLCG Ops

10:10 Recap and next steps - WLCG/HSF Sustainability

11:00 Recap and next steps - HSF

11:20 Recap and next steps - WLCG Technical Coordination

11:40 Recap and next steps - Analysis at scale - Alessandra Forti (The University of Manchester (GB)) Nicole Skidmore (University of Warwick)
12:00 Lunch
Lunch
12:00 - 14:00
Room: Cafeteria, building 200

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