IRIS-HEP Institute Retreat

8 Oct 2025, 12:00 → 10 Oct 2025, 17:30 Europe/Zurich

Salon Fayat

The IRIS-HEP software institute has recently completed its seventh year after being funded by the National Science Foundation. The goals of the retreat are to:

1. Checkpoint the status of the IRIS-HEP efforts to date (Year 7 of the project).
2. Clarify the gaps between where we are now and what will be needed for the HL-LHC startup. 
3. Update our plans for delivery of IRIS-HEP products to our partners (experiments, ops programs and the LHC and HEP community).
4. Elaborate a vision for what IRIS-HEP can achieve in Year 8 and beyond.

The retreat will take place at the Saint Gervais Hotel in Saint Gervais. 

Although we will organize for remote participation, we believe that this kind of planning event really benefits from in-person participation so we hope to have a strong turnout in Geneva! In person registration is now closed, but contact us if you are interested to attend in person. There is a virtual registration form for those connecting remotely.

This event is being organized by the IRIS-HEP Software Institute, which is supported by National Science Foundation cooperative agreement PHY-2323298 and previously by cooperative agreement OAC-1836650.

Meeting Notes (Please help out if you are able!): https://docs.google.com/document/d/1Y7ViBF-3luqq4CpP7h98i1T_JE9tf0lIoS_dlVDW1c8/edit?usp=sharing

 

 

Meeting Notes (please help if you can!)

Wednesday 8 October

12:00 → 13:00 Registration/Lunch

13:00 → 15:30 Plenary

13:15 Welcome

Speaker: David Lange (Princeton University (US))

retreat_intro_251007.pdf

retreat_intro_251007.pptx

13:25 Overview

Speaker: Peter Elmer (Princeton University (US))

13:50 Innovative Algorithms Area

Speaker: Louis-Guillaume Gagnon (Lawrence Berkeley National Lab. (US))

IA_for_retreat_2025.pdf

14:15 SSL Area

Speaker: Robert William Gardner Jr (University of Chicago (US))

slides

slides

14:40 OSG-LHC Area

Speaker: Derek Weitzel (University of Nebraska Lincoln (US))

OSG-LHC IRIS-HEP Retreat Focus Talk - 2025 (2).pdf

15:05 Analysis Systems

Speaker: Matthew Feickert (University of Wisconsin Madison (US))

analysis_systems_feickert_2025-10-08.pdf

15:30 → 16:00 Coffee Break

16:00 → 18:45 Plenary

16:00 DOMA

Speaker: Brian Paul Bockelman (University of Wisconsin Madison (US))

DOMA-Area-Overview.pdf

16:25 Overview of upcoming blueprints

Speakers: Jay Ajitbhai Sandesara (University of Wisconsin Madison (US)), Lino Oscar Gerlach (Princeton University (US)), Massimiliano Galli (Princeton University (US)), Matthew Feickert (University of Wisconsin Madison (US)), Mohamed Aly (Princeton University (US)), Nick Smith (Fermi National Accelerator Lab. (US))

Upcoming Blueprints Overview

16:50 USATLAS

Speaker: Verena Ingrid Martinez Outschoorn (University of Massachusetts (US))

USATLAS-Input-IRIS-HEP-Retreat-2025.pdf

17:15 USCMS

Speaker: Tulika Bose (University of Wisconsin Madison (US))

Bose-251008-IRIS-HEP-Retreat-final.pdf

17:40 HEP-CCE

Speaker: Paolo Calafiura (Lawrence Berkeley National Lab. (US))

HEP-CCE at IRIS-HEP retreat Oct 2025.pdf

18:05 IDAP / AGC [postponed to Thursday morning]

Speakers: Alexander Held (University of Wisconsin Madison (US)), Oksana Shadura (University of Nebraska Lincoln (US))

IRIS-HEP 2025 retreat AGC _ IDAP.pdf

19:30 → 21:30 Dinner - Bistro LuLu

Thursday 9 October

09:00 → 10:30 Plenary: Integration Challenge and beyond

Conveners: Alexander Held (University of Wisconsin Madison (US)), Oksana Shadura (University of Nebraska Lincoln (US))

09:00 Overview

slides from Wednesday

09:30 CMS pipeline

Speaker: Mohamed Aly (Princeton University (US))

091025_MoAly_integration_challenge_retreat25.pdf

Github - demo

09:45 ATLAS pipeline

Speaker: Artur Cordeiro Oudot Choi (University of Washington (US))

atlas-mini-demo

integ-challenge-thursday.pdf

10:00 Discussion

10:30 → 11:00 Coffee Break

11:00 → 12:30 Parallel: ServiceX plans and community

Convener: Peter Onyisi (University of Texas at Austin (US))

11:00 ServiceX plans and community

Speaker: Peter Onyisi (University of Texas at Austin (US))

12:30 → 14:00 Lunch

14:00 → 15:45 Parallel: Brainstorming: Cross-cutting AI activities in the institute

Conveners: Gordon Watts (University of Washington (US)), Peter Elmer (Princeton University (US))

Discussion Google Doc

Excalidraw board

Statistical_Tools_Ecosystem_Discussion.pdf

14:00 Streamlining Future Machine Learning in HEP

Speaker: Liv Helen Vage (Princeton University (US))

Streamlining ML in HEP - IRIS HEP retreat.pdf

14:20 Shorts

Please add your slides to the google-slides...

Google Slides

14:00 → 15:45 Parallel: Mini-Data Challenge Program of work

Conveners: Diego Davila Foyo (Univ. of California San Diego (US)), Shawn Mc Kee (University of Michigan (US))

14:00 Mini-Data Challenge Program of work

Speaker: Diego Davila Foyo (Univ. of California San Diego (US))

Mini-Data Challenge Program of Work

Mini-Data Challenge Program of Work

See discussion notes at https://docs.google.com/document/d/1OD8pE-InnjIhmTIFx7tQ9NLumxAWIYvzPNzazK3nZOE/edit?tab=t.0#heading=h.mewhmbcpz1f1

15:45 → 16:15 Coffee Break

16:15 → 18:00 Parallel: Delivery from IRIS-HEP to experiments on tracking projects

Conveners: David Lange (Princeton University (US)), Louis-Guillaume Gagnon (University of California Berkeley (US))

16:15 Intro

16:25 ML Tracking

Speaker: Liv Helen Vage (Princeton University (US))

IRIS-HEP ML Tracking update.pdf

16:50 LHCb vertexing

Speakers: Michael David Sokoloff (University of Cincinnati (US)), Mohamed Elashri (University of Cincinnati)

IRIS_HEP_Retreat_2025_pvfinder_talk.pdf

17:15 Year 8 Milestone discussion

Speaker: David Lange (Princeton University (US))

retreat_milestones_251009.pdf

retreat_milestones_251009.pptx

16:15 → 18:00 Parallel: Status and Evolution of OSG-LHC services

Conveners: Brian Hua Lin (University of Wisconsin - Madison), Brian Paul Bockelman (University of Wisconsin Madison (US)), Derek Weitzel (University of Nebraska Lincoln (US)), Diego Davila Foyo (Univ. of California San Diego (US)), Shawn Mc Kee (University of Michigan (US))

Discussion Google Doc

Excalidraw board

Statistical_Tools_Ecosystem_Discussion.pdf

16:15 OSG(-LHC) Evolutions and Status

Speaker: Brian Paul Bockelman (University of Wisconsin Madison (US))

OSG-LHC-Evolutions.pdf

16:35 Evolution of OSG Services

Speaker: Derek Weitzel (University of Nebraska Lincoln (US))

Evolution of OSG Services.pdf

16:55 Evolution of OSG Networking

Speaker: Shawn Mc Kee (University of Michigan (US))

IRIS-HEP/OSG-LHC Networking Vision for 2028

IRIS-HEP_OSG-LHC Networking Vision for 2028.pdf

17:15 Evolution of OSG Software

Speakers: Brian Hua Lin (University of Wisconsin - Madison), Brian Paul Bockelman (University of Wisconsin Madison (US))

OSG-Software-Activities.pdf

19:30 → 21:30 Workshop Dinner - Restaurant Le Four

Friday 10 October

09:30 → 10:45 Parallel: (Open Parallel)

09:30 → 10:45 Parallel: Statistical Tools Ecosystem

Conveners: Massimiliano Galli (Princeton University (US)), Matthew Feickert (University of Wisconsin Madison (US))

Discussion Google Doc

Excalidraw board

Statistical_Tools_Ecosystem_Discussion.pdf

10:45 → 11:05 Coffee Break

11:05 → 11:15 Group Photo

11:15 → 12:30 Plenary

11:15 IDAP Integration Discussions

Speakers: Alexander Held (University of Wisconsin Madison (US)), Iason Krommydas (Rice University (US)), Oksana Shadura (University of Nebraska Lincoln (US))

discussion items

discussion items

12:30 → 14:00 Lunch

14:00 → 14:45 Plenary

14:00 Parallel session outcomes

One-Page Parallel Session Outcomes

14:30 Blueprint discussion

Everyone who led a parallel session please add a blueprint idea to this slide deck (if you already have one associated with your parallel session, no worries)!

Everyone else is welcome to add too!

Blueprint Idea Slides

14:45 → 15:00 Plenary

14:45 Closeout

Speaker: Peter Elmer (Princeton University (US))

15:00 → 15:15 Coffee Break