Name: SC4RC 2026
Start: 2026-05-04T14:00:00+02:00
End: 2026-05-08T18:00:00+02:00
Location: CERN

SC4RC 2026

from Monday, May 4, 2026 (2:00 PM) to Friday, May 8, 2026 (6:00 PM)

Monday, May 4, 2026
2:00 PM Welcome & Housekeeping
2:00 PM - 2:30 PM
Room: 503/1-001 - Council Chamber
Contributions

2:00 PM Welcome to SC4RC - Loic Lannelongue (University of Cambridge) Rakhi Mahbubani (Rudjer Boskovic Institute (HR))

2:15 PM Welcome to CERN - Simone Campana (CERN)

2:25 PM Logistics - Markus Schulz (CERN)
2:30 PM Discipline Summaries
2:30 PM - 4:00 PM
Room: 503/1-001 - Council Chamber
Contributions

2:30 PM Scientific Computing Across Disciplines: A Student-Driven Evaluation of Institutional Computing Footprints and External Resource Usage - Jeroen Dobbelaere (Institute of Science and Technology Austria)

2:50 PM Green computing in neuroimaging research: Identifying strategies to reduce energy consumption, and training end users through roving workshops - Nicholas Souter (University of Sussex)

3:10 PM High Energy Physics, LHC and Computing for LHC [Online] - Caterina Doglioni (University of Manchester, UK) Caterina Doglioni (The University of Manchester (GB))

3:30 PM Balancing accuracy and computational cost in computational chemistry - Jelle Vekeman (University of Antwerp)

3:50 PM Discussion
4:00 PM Coffee break
Coffee break
4:00 PM - 4:30 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
4:30 PM Interactive Session
4:30 PM - 5:15 PM
Room: 503/1-001 - Council Chamber
Contributions

4:30 PM Power Measurement Techniques for Research Computing - Jack Coker (University of Cambridge)
Interactive Session
4:30 PM - 5:15 PM
Room: 500/1-001 - Main Auditorium
Contributions

4:30 PM GreenDIGIT Tools for Environmental Sustainability in Digital Research Infrastructures: Assessment Methodology and Metrics Publication System - Damla Rowlandson Shashikant Ilager (University of Amsterdam) Iida Lehto (Mandat International)
5:15 PM Dashboard Demos
5:15 PM - 6:00 PM
Room: 503/1-001 - Council Chamber
Contributions

5:15 PM Energy & Emissions Monitoring of Compute Workloads Using CEEMS [Online] - Mahendra PAIPURI (CNRS)

5:15 PM The Green Algorithms Dashboard: Bringing Carbon Visibility to Research Computing - Navirah Kamal (University of Cambridge)

5:15 PM Accelerating Science, Decelerating Carbon: Sustainable Computing at CERN - Amine Lahouel (CERN) Laura Eve Sarah Llinares
6:00 PM Social: Welcome aperitif
Welcome aperitif
6:00 PM - 8:00 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
Tuesday, May 5, 2026
9:00 AM Faster, Greener, Precise Enough: Challenges and Directions in GPU Auto-Tuning - Ben van Werkhoven (Leiden University)
Faster, Greener, Precise Enough: Challenges and Directions in GPU Auto-Tuning
- Ben van Werkhoven (Leiden University)
9:00 AM - 9:45 AM
Room: 500/1-001 - Main Auditorium High-Performance Computing (HPC) drives discovery across science and industry and underpins the rapid advances in AI. At the heart of modern HPC platforms is the Graphics Processing Unit (GPU), which delivers the bulk of compute power but also dominates energy consumption. As GPU architectures increasingly prioritize low-precision arithmetic for AI workloads, HPC applications that depend on higher precision face new programmability challenges alongside new opportunities in mixed-precision computing. Crucially, the energy efficiency of GPU applications depends not only on compute utilization but also on memory traffic patterns, and the fastest implementation is not always the most energy efficient. Reliable exploration of these trade-offs is further complicated by the limited accuracy and temporal resolution of current power measurement tools. Combined with the vast, discontinuous design spaces inherent to GPU programming, manual optimization is infeasible. Automatic performance tuning, or auto-tuning, offers a proven approach to this problem, automatically searching for optimal configurations across algorithm, application, and hardware parameters. To address the emerging demands of mixed-precision computing and energy-aware execution, the field is now moving toward constrained and multi-objective optimization to enable systematic exploration of the trade-offs between performance, energy consumption, and numerical accuracy. In this talk, I will highlight key challenges, recent developments, and future directions in GPU auto-tuning.
9:45 AM A quick overview of the physical and social science of the planetary crisis - Julia Steinberger (University of Lausanne)
A quick overview of the physical and social science of the planetary crisis
- Julia Steinberger (University of Lausanne)
9:45 AM - 10:30 AM
Room: 500/1-001 - Main Auditorium TBC
10:30 AM Responses & discussion
Responses & discussion
10:30 AM - 11:00 AM
Room: 500/1-001 - Main Auditorium

11:00 AM Coffee break
Coffee break
11:00 AM - 11:30 AM
Room: 61/1-201 - Pas perdus - Not a meeting room -
11:30 AM Contributed Talks: (Track A) Project Design
(Track A) Project Design
11:30 AM - 12:30 PM
Room: 500/1-001 - Main Auditorium
Contributions

11:30 AM Estimating the environmental impact of computing for a future accelerator facility - Hannah Wakeling (John Adams Institute, University of Oxford)

11:55 AM Integrating sustainability in the design of the Wide-field Spectroscopic Telescope’s data processing and storage - Laurane Fréour (University of Vienna)

12:20 PM Discussion
Contributed Talks: (Track B) Hardware/Software Optimisation
(Track B) Hardware/Software Optimisation
11:30 AM - 1:10 PM
Room: 40/S2-D01 - Salle Dirac
Contributions

11:30 AM Understanding and Evaluating DRAM's Operational and Embodied Emissions - Aditya Manglik

11:55 AM Mitigate. Innovate. Sustain. - Wilco Burggraaf

12:20 PM Reducing machine learning model emissions by integrating physics knowledge - Daisy Bradley (University of Sheffield)

12:45 PM Sustainability-Aware Workload Shifting Beyond Carbon Intensity - Geerd-Dietger Hoffmann (Green Coding Solutions, University of Potsdam)
12:30 PM Contributed Talks: (Track A) Data Storage
(Track A) Data Storage
12:30 PM - 1:10 PM
Room: 500/1-001 - Main Auditorium
Contributions

12:30 PM Engineering a Scalable, FAIR Data Infrastructure for Resource-Efficient Research - Irufan Ahmed (Imperial College London)

12:55 PM Discussion
1:10 PM Lunch break
Lunch break
1:10 PM - 2:30 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
2:30 PM Sustainable Computing in an Era of Rising Hardware Costs and Slowing Per-Core Progress - Ian Fisk (Simons Foundation)
Sustainable Computing in an Era of Rising Hardware Costs and Slowing Per-Core Progress
- Ian Fisk (Simons Foundation)
2:30 PM - 3:15 PM
Room: 500/1-001 - Main Auditorium The cost structure of computing hardware is undergoing a fundamental shift. Prices for accelerators, high-performance CPUs, memory, storage, and networking have risen due to architectural complexity, supply-chain constraints, and demand from AI and large-scale simulation. At the same time, single-core CPU performance gains have slowed, with overall improvements driven mainly by higher core counts. This combination—rising costs and diminishing per-core gains—has become particularly acute for memory and solid-state storage. Together, these trends are reshaping procurement strategies and the environmental footprint of research computing. This talk examines how these changes alter hardware replacement economics and redefine sustainable computing. Frequent refresh cycles now compete with strategies focused on extending system lifetimes, selective upgrades, and optimizing software for parallel, heterogeneous platforms. Drawing on examples from large-scale scientific computing, it explores trade-offs between cost, performance, energy efficiency, and carbon impact, arguing that sustainability must incorporate economic and architectural drivers alongside energy considerations.
3:15 PM Software Engineering and Sustainability: Experience Cultivating Better Systems - Michael Philip Sparks (The University of Manchester (GB))
Software Engineering and Sustainability: Experience Cultivating Better Systems
- Michael Philip Sparks (The University of Manchester (GB))
3:15 PM - 4:00 PM
Room: 500/1-001 - Main Auditorium Sustainability and software engineering are often treated as separate concerns. They do intersect. One often focuses on energy, carbon, and environmental limits. The other focuses on code, systems, longevity, reproducibility, and delivery. This talk asks if the link runs deeper. Both fields face similar pressures. Demand rises. Resources are finite. Complexity grows. Hidden costs accumulate. I draw on work in network systems, media, broadcasting, open source, mentoring, platform-scale systems, and research computing. If so, better software engineering is not merely adjacent to sustainability. The two can be symbiotic. Through projects and examples, the session explores how to build systems that scale better and waste less. It also asks how systems can create more capable participants. Finally, I consider what opportunities lie beyond net zero, and how we build for that world.
4:00 PM Coffee break
Coffee break
4:00 PM - 4:30 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
4:30 PM Poster Lightning Talks
4:30 PM - 5:15 PM
Room: 500/1-001 - Main Auditorium
Contributions

4:30 PM Lightning Talks - Adrian CIOCAN (MAIF, France, La Rochelle University, France) Amine Lahouel (CERN) Ana Catarina Gouveia Braz (École Polytechnique Fédérale de Lausanne) August Ning (EPFL) Christina Bremer (University of Cambridge) Christophe Farges Colin C. Venter (University of Huddersfield (GB)) Georgios Sarantakos Hannah Scott (Imperial College London) JAIME IGLESIAS BLANCO (Spanish National Research Council (CSIC)) Jaime Iglesias Blanco (CSIC) Jeroen Dobbelaere (Institute of Science and Technology Austria) Jyoti Bhogal Kirsty Pringle Laura Eve Sarah Llinares Matteo Bunino (CERN) Matteo Zanotto Maximilian Horzela (Georg August Universitaet Goettingen (DE)) Michael Philip Sparks (The University of Manchester (GB)) Nicholas Souter (University of Sussex) Pascal Emmenegger Rubén Rodríguez Álvarez (EPFL) Sadie Bartholomew Tia Haddad (Kingston University London) Vladimir Bahyl (CERN) Xavier Eric Ouvrard (EPFL EcoCloud) Yishak Tadele Nigatu (University of Trento)
5:15 PM Poster session
5:15 PM - 6:30 PM
Room: 500/1-201 - Mezzanine
Contributions

5:15 PM Developing a sustainable institutional research computing culture - Hannah Scott (Imperial College London) Jeremy Cohen (Imperial College London)

5:30 PM Green RSE - Kirsty Pringle

5:30 PM Scientific Computing Across Disciplines: A Student-Driven Evaluation of Institutional Computing Footprints and External Resource Usage - Jeroen Dobbelaere (Institute of Science and Technology Austria)

5:30 PM Sustainable Data Centre Research: The RF2.0 Project at DESY - Dwayne Spiteri (DESY)

5:30 PM Wattnet: High-Resolution Carbon and Water Intensity Modelling to Enable Impact-Aware Research Computing. - JAIME IGLESIAS BLANCO (Spanish National Research Council (CSIC)) Jaime Iglesias Blanco (CSIC)

5:30 PM Green computing in neuroimaging research - Nicholas Souter (University of Sussex)

5:30 PM Enhancing Sustainable Research: A holistic Approach to Sustainable Computing (Poster) - Xavier Eric Ouvrard (EPFL EcoCloud)

5:30 PM Datacenters and Artificial Intelligence: Piloting the Energy Performance of AI Usages as a Strategic CSR Challenge [Online] - Adrian CIOCAN (MAIF, France, La Rochelle University, France) Angela CIOCAN (CERADE, ESAIP, Angers, France, L3i, La Rochelle University, France) Vincent COURBOULAY (L3i, La Rochelle University, France)

5:30 PM A Comprehensive Data Analysis of Three IBM POWER9 Cooling Systems in the ExaDigit Framework [Online] - Yishak Tadele Nigatu (University of Trento)

5:30 PM Scaling up CATS, The Climate Aware Task Scheduler, for cluster computing and international reach [Online] - Sadie Bartholomew (National Centre for Atmospheric Science and University of Reading)

5:30 PM Operationalising Sustainable Software Engineering (SSE) Principles Through Runtime Architectural Tactic Selection in Self-Adaptive Microservices [Online] - Tia Haddad (Kingston University London)

5:30 PM TBD - Jyoti Bhogal

5:30 PM TBD - Amine Lahouel (CERN)

5:30 PM PUE is broken, what is next? - Xavier Eric Ouvrard (EPFL EcoCloud) August Ning (EPFL) Xavier Eric Ouvrard

5:30 PM Cutting Carbon in SKA Science Computing though Lifecycle Management, Load Shaping, and Accelerators - Ruben Rodriguez Alvarez (EPFL Embedded Systems Lab) Denisa-Andreea Constantinescu (EPFL Embedded Systems Lab) Miguel PEÓN-QUIRÓS (EcoCloud EPFL)

5:30 PM UrbanTwin: Digital Twins at the Service of a Sustainable Future through Integrated Urban Systems - Catarina G. Braz (École Polytechnique Fédérale de Lausanne) Denisa-Andreea Constantinescu (EPFL Embedded Systems Lab)

5:30 PM Towards Sustainable and Accountable Hybrid Cloud Computing via Carbon Intensity Forecasting - Matteo Zanotto (University of Trento)

5:30 PM Energy impact of programming languages and their frameworks on business/web applications - Christophe Farges

5:30 PM Estimating the Embodied Impacts of the Internet: Promise and Deception - Pascal Emmenegger

5:30 PM How effective are carbon reporting tools in encouraging sustainable behaviours? Introducing E-SCOUT, a large-scale multi-centre trial - Christina Bremer (University of Cambridge)

5:30 PM CompilePython.com: Capturing Community Knowledge on Compiling Python for Real-World Software - Michael Philip Sparks (The University of Manchester (GB))

5:30 PM Applied AI for Power Management and Predictive Maintenance in the LHCb HLT2 Data Centre - Matteo Bunino (CERN)

5:30 PM Implementation of background jobs for recovering CPU usage during the draining of worker nodes - Maximilian Horzela (Georg August Universitaet Goettingen (DE)) Sebastian Wozniewski (Georg August Universitaet Goettingen (DE))

5:30 PM The Green Frontier of Big Data: Environmental Efficiency of Tape Storage at CERN - Vladimir Bahyl (CERN)

5:30 PM EcoCloud: An Experimental Research Facility for Sustainable Computing and Computing for Sustainability - Xavier Eric Ouvrard (EPFL EcoCloud)

5:30 PM GreenPhysECS: Exploring the Practical Utility of the Entity-Component-System Model for Early-Career Researchers Building Energy-Aware Parallel Research Software - Michael Philip Sparks (The University of Manchester (GB))
Wednesday, May 6, 2026

9:00 AM Welcome & overview of the day
Welcome & overview of the day
9:00 AM - 9:15 AM
Room: 503/1-001 - Council Chamber
9:15 AM Contributed Talks: (Track A) Community Building and Behavioural Change
(Track A) Community Building and Behavioural Change
9:15 AM - 10:30 AM
Room: 503/1-001 - Council Chamber
Contributions

9:15 AM Green Research Software Engineering: A new role to Embed Sustainability in Research Software - Kirsty Pringle (University of Edinburgh / Software Sustainability Institute)

9:40 AM Building Communities in Green Computing - Anica Araneta (University of Cambridge)

10:05 AM Integrating environmental sustainability into bioinformatics training and its delivery - Flaminia Zane (EMBL-EBI)
Contributed Talks: (Track B) Carbon Accounting
(Track B) Carbon Accounting
9:15 AM - 10:30 AM
Room: 500/1-001 - Main Auditorium
Contributions

9:15 AM Towards a Federated Accounting Framework for Sustainable Research Computing: A Landscape Review of the UK's Digital Research Infrastructure - Deniza Chekrygina

9:40 AM Life cycle assessment of the LHCb data centres : Overall impacts & Cooling systems comparison - Roman Dandoy (Universite de Liege (BE))

10:05 AM What does that really tell us? Interpreting numbers in sustainability reports - Romain Jacob (ETH Zurich)
10:30 AM Coffee break
Coffee break
10:30 AM - 11:00 AM
Room: 61/1-201 - Pas perdus - Not a meeting room -
11:00 AM Contributed Talks: (Track A) Community Building and Behavioural Change
(Track A) Community Building and Behavioural Change
11:00 AM - 11:50 AM
Room: 503/1-001 - Council Chamber
Contributions

11:00 AM UKRI's approach to Sustainable Digital Research Infrastructure - Emily Wallis (United Kingdom Research and Innovation)

11:25 AM Green DiSC: open-access community-driven Digital Sustainability Certification scheme - Loic Lannelongue (University of Cambridge)
Contributed Talks: (Track B) Carbon Accounting
(Track B) Carbon Accounting
11:00 AM - 12:30 PM
Room: 500/1-001 - Main Auditorium
Contributions

11:00 AM An environmental assessment of computing services in higher education [Online] - Caterina Doglioni (The University of Manchester (GB)) Tobias Fitschen (The University of Manchester (GB))

11:25 AM Carbon Accounting for UK Research Computing: proof of concept & beyond. - Alex Owen (University of London (GB))

11:50 AM How accurate are current tools and models for estimating software energy consumption? [Online] - Andreas Brunnert (Munich University of Applied Sciences HM)

12:15 PM Discussion
11:50 AM Interactive Session
11:50 AM - 12:30 PM
Room: 503/1-001 - Council Chamber
Contributions

11:50 AM IT in your research – what impacts? - Manuel Cubero-Castan (EPFL, VPS) Julia Paolini (EPFL)
12:30 PM Lunch break - meet outside Council Chamber
Lunch break - meet outside Council Chamber
12:30 PM - 2:00 PM
Room: Restaurant 1
2:00 PM Interactive Session
2:00 PM - 2:45 PM
Room: 503/1-001 - Council Chamber
Contributions

2:00 PM What’s Stopping Emissions Monitoring Across Compute Services? - Jessica Huntley (STFC)
Writing Session

2:00 PM - 3:30 PM
Room: 61/1-009 - Room C
2:45 PM Interactive Session
2:45 PM - 3:30 PM
Room: 503/1-001 - Council Chamber
Contributions

2:45 PM Beyond the Dashboard: What Should Research Computing Carbon Monitoring Actually Do? - Navirah Kamal (University of Cambridge)
3:30 PM Coffee break
Coffee break
3:30 PM - 4:00 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
4:00 PM Developing a sustainable institutional research computing culture - Jeremy Cohen (Imperial College London)
Developing a sustainable institutional research computing culture
- Jeremy Cohen (Imperial College London)
4:00 PM - 4:45 PM
Room: 503/1-001 - Council Chamber A sustainable research computing culture is vital to ensure research institutions can meet their sustainability aims while supporting ever-increasing demands for computational capacity driven by modern research practices. This talk, and the associated poster, will outline work underway at Imperial College London to foster a sustainable institutional research computing culture and create models that can be adopted elsewhere. Our approach centres on three pillars: Community: Building community to develop shared understanding among researchers and technical professionals of sustainable computing practices, particularly as AI and high performance computing become increasingly prominent. Education: Underpinned by the development of a new green and sustainable computing training course that delivers core knowledge and highlights best practices, providing a resource for cultural change. Advocacy: Involves working with institutional leaders and sustainability teams to highlight practical improvements, large and small, alongside work with an artist to develop visual outputs that inspire broader engagement with sustainable IT.
4:45 PM Responses & discussion
Responses & discussion
4:45 PM - 5:15 PM
Room: 503/1-001 - Council Chamber

5:15 PM Cern tours - Guides will meet you outside Council Chamber
Cern tours - Guides will meet you outside Council Chamber
5:15 PM - 6:30 PM
7:00 PM Free Public Webinar [Online]: Environmental Impacts of Big Computing
Environmental Impacts of Big Computing
7:00 PM - 8:30 PM
Contributions

7:00 PM Free Public Webinar [Online]: Environmental Impacts of Big Computing - Loic Lannelongue (University of Cambridge)

7:30 PM Panel Discussion with Jyoti Bhogal, Lauranne Fréour, Kirsty Pringle and Raghavendra Selvan [Online] - Jyoti Bhogal Kirsty Pringle Laurane Fréour Raghavendra Selvan (University of Copenhagen)
Thursday, May 7, 2026
9:00 AM On the Challenges in Assessing the Sustainability of AI [Online] - Raghavendra Selvan (University of Copenhagen)
On the Challenges in Assessing the Sustainability of AI [Online]
- Raghavendra Selvan (University of Copenhagen)
9:00 AM - 9:45 AM
Room: 500/1-001 - Main Auditorium Recent developments in deep learning have transformed several application domains, including computer vision and natural language processing, with new and exciting possibilities in Artificial Intelligence (AI). These advancements have been enabled, and accelerated, by large scale computations on massive data which also translate into increased energy- and carbon- costs. In this talk, I will present an overview of the factors behind the growing energy consumption and carbon footprint of AI, present techniques to quantify these costs and practices that could improve the environmental sustainability of AI. I will also point out the gaps in regulations and tools needed to assess the sustainability of AI, and suggest some directions to bridge this divide.
9:45 AM Responses & discussion
Responses & discussion
9:45 AM - 10:15 AM
Room: 500/1-001 - Main Auditorium
10:15 AM Poster Lightning Talks: Lightning Talks
Lightning Talks
10:15 AM - 10:30 AM
Room: 500/1-001 - Main Auditorium
Contributions

10:15 AM Lightning Talks - Ana Catarina Gouveia Braz (École Polytechnique Fédérale de Lausanne) Hannah Scott (Imperial College London) Jyoti Bhogal Sadie Bartholomew
10:30 AM Coffee break
Coffee break
10:30 AM - 11:00 AM
Room: 61/1-201 - Pas perdus - Not a meeting room -
11:00 AM Modelling Scenarios for Carbon-aware Geographic Load Shifting of Compute Workloads [Online] - Wim Vanderbauwhede (University of Glasgow)
Modelling Scenarios for Carbon-aware Geographic Load Shifting of Compute Workloads [Online]
- Wim Vanderbauwhede (University of Glasgow)
11:00 AM - 11:45 AM
Room: 500/1-001 - Main Auditorium We present a linear, statistics based analytical model to evaluate the reductions in CO2e emissions resulting from geographic load shifting. This model is optimistic as it ignores issues of grid capacity, demand and curtailment. In other words, real-world reductions will be smaller than the estimates. However, even with these assumptions, the presented scenarios show that the realistic reductions from carbon-aware geographic load shifting are small, of the order of 5%. This is not enough to compensate the growth in emissions from global data centre expansion.
11:45 AM Contributed Talks: (Track A) Cluster Operations
(Track A) Cluster Operations
11:45 AM - 1:25 PM
Room: 40/S2-C01 - Salle Marie Sklodowska-Curie
Contributions

11:45 AM An Energy-Efficient Data Centre with Heat recovery at Queen Mary University of London [Online] - Sudha Ahuja (Queen Mary University of London)

12:10 PM Wattnet: High-Resolution Carbon and Water Intensity Modelling to Enable Impact-Aware Research Computing. - JAIME IGLESIAS BLANCO (Spanish National Research Council (CSIC)) Jaime Iglesias Blanco (CSIC)

12:35 PM Adaptive Infrastructure and Efficiency Strategies at a GridKa WLCG Tier-1 Center - Lars Sowa (KIT - Karlsruhe Institute of Technology (DE))

1:00 PM Discussion
Contributed Talks: (Track B) Carbon Quantification Tools
(Track B) Carbon Quantification Tools
11:45 AM - 1:25 PM
Room: 500/1-001 - Main Auditorium
Contributions

11:45 AM GreenMetaData: Standardising Environmental Impact Reporting for Computational Research [Online] - Jyoti Bhogal

12:10 PM The One Token Model: A Multi-Layer Framework for the Granular Estimation of AI Inference Energy - Mathieu Francois (Co-Founder & CEO, Antarctica)

12:35 PM Towards a better understanding of environmental impacts of IT : evaluation of carbon emissions generated by organizations’ IT services - Julia Paolini (EPFL)

1:00 PM Using co-design to improve computing carbon calculators - Christina Bremer (University of Cambridge)
1:25 PM Lunch break
Lunch break
1:25 PM - 2:45 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
2:45 PM Contributed Talks: (Track A) Cluster Operations
(Track A) Cluster Operations
2:45 PM - 4:00 PM
Room: 500/1-001 - Main Auditorium
Contributions

2:45 PM Optimizing Energy Efficiency at the WLCG PIC Tier-1: From Predictive Job Scheduling to Real-Time CPU Control - Jose Flix Molina (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))

3:10 PM SUSFECIT: Objectives and Concepts - Dwayne Spiteri (DESY)

3:35 PM Enhancing Sustainable Research: A holistic Approach to Sustainable Computing - Georgios Sarantakos (EPFL) Xavier Eric Ouvrard (EPFL EcoCloud)
Poster session

2:45 PM - 4:00 PM
Room: 500/1-201 - Mezzanine

4:00 PM Coffee break
Coffee break
4:00 PM - 4:30 PM
Room: 61/1-201 - Pas perdus - Not a meeting room -
4:30 PM Environmentally Sustainable HeAlth REsearch (SHARE) Considerations of ethics, justice, responsibility and reflexivity. - Gabby Samuel
Environmentally Sustainable HeAlth REsearch (SHARE) Considerations of ethics, justice, responsibility and reflexivity.
- Gabby Samuel
4:30 PM - 5:15 PM
Room: 500/1-001 - Main Auditorium High performance computing health research is implicated in a range of harmful environmental impacts such as energy, water and other resource consumption and waste generation. Numerous tools have been developed - mainly in High income countries- to enable and encourage researchers to assess and reduce these impacts, including guidelines, carbon calculators, and laboratory certification systems. As these tools begin to be rolled out across the wider more global research ecosystem, it is important to explore potential and emerging ethical, social and practical issues. These include tensions with local values when tools are used in different geographical contexts, issues of inequity and injustice and the risks of compliance-based approaches in this field. In this talk, we will present initial findings of a multi-country project aiming at assessing the ethical, social and practical implications of using tools in health research sites in five countries across four continents (UK, India, Ghana, Kenya and Brazil). We will present our study design, including how we developed an approach to compare large qualitative data sets across countries, as well as preliminary themes around meanings of environment, environmental citizenship, communities of practice, and the importance of context.
Friday, May 8, 2026
9:00 AM The Political Economy of Compute: Provocations and Pathways - Jo Walton (University of Sussex)
The Political Economy of Compute: Provocations and Pathways
- Jo Walton (University of Sussex)
9:00 AM - 9:45 AM
Room: 503/1-001 - Council Chamber This talk reflects on the work of the Sustainable AI Futures project. Debates about AI and climate are often highly polarised, with both advocates and critics relying on methodologically weak statistics that can give a misleading sense of precision. As a transdisciplinary issue with broad social relevance, AI and climate demand careful attention to the limits of available evidence, alongside a stronger role for technical specialists as educators and communicators. Recent efforts to estimate the net impact of AI on the climate can be understood as a response to this polarisation. However, these approaches are often constrained by the uncritical adoption of assumptions and conceptual frameworks shaped by US-centric big tech. At the same time, an AI backlash has gathered pace, and alternative futures are being articulated that seek closer alignment with the needs of people and planet, though these remain underexamined. AI-related emissions also need to be more clearly situated within total global emissions, and supported by more robust and explicit theories of change. This talk offers a set of provocations, proposes gaps and challenges, and even draws on science fiction and art, in order to open up a broader conversation about sustainable computing in research and beyond.
9:45 AM Responses & discussion
Responses & discussion
9:45 AM - 10:15 AM
Room: 503/1-001 - Council Chamber

10:15 AM Coffee break
Coffee break
10:15 AM - 10:45 AM
Room: 61/1-201 - Pas perdus - Not a meeting room -
10:45 AM Interactive Session
10:45 AM - 11:30 AM
Room: 503/1-001 - Council Chamber
Contributions

10:45 AM Your planet needs you! Scoping a community of Sustainable Computing Ambassadors. - Kirsty Pringle Loïc Lannelongue (University of Cambridge)
11:30 AM Prizes
Prizes
11:30 AM - 11:45 AM
Room: 503/1-001 - Council Chamber

11:45 AM Summary & close
Summary & close
11:45 AM - 12:15 PM
Room: 503/1-001 - Council Chamber

1:00 PM Science Gateway tour
Science Gateway tour
1:00 PM - 2:00 PM