Welcome to the ISC 2026 Sustainable Supercomputing workshop!
Providing a sustainable path for supercomputing is a pressing topic for our community, industry, and governments. Supercomputing has an insatiable appetite for computational cycles, while we face increasing challenges of delivering performance per Watt advances with silicon technology trends. All within the context of climate change, the drive towards net-zero, and economic pressures driven by geo-political challenges.
Improving the sustainability of supercomputing provides many opportunities when the end-to-end cycle is considered. From the design of computational circuits and systems; to the power and cooling that is used to operate them, along with the suite of software tools used to administrate, maintain, and raise operational efficiency of HPC systems. All elements of the system must be considered, from compute nodes and interconnects, to IO and storage components of the system.
This workshop will gather users, researchers, hardware and software developers to address opportunities and challenges of sustainability in the supercomputing context.
Agenda
Friday 26th June :
2.00pm-2.05pm : Workshop introduction
2.05pm-2.25pm : Toward Sustainable AI: Energy-Aware Fine-Tuning Strategies for LLMs
Daniel Armas Ramírez is a data science student at Instituto Politécnico Nacional, specializing in high-performance computing and artificial intelligence. His work focuses on Green Computing, specifically exploring ways to reduce the energy footprint of deploying AI models across diverse hardware environments. Daniel applies these sustainable computing solutions to solve real-world problems and address environmental challenges through technology. Previously, as a Software Engineer Intern at Microsoft, he demonstrated his capabilities by developing tools to monitor and prevent system failures in supercomputing infrastructure
2.25pm-2.45pm : Facilitating Flexible Scheduling With Flexible Workloads
Christian Wassermann is a PhD candidate in the HPC group at the IT Center of RWTH Aachen University. Since 2016, he has been actively involved in this research group while pursuing his Bachelor's degree in Scientific Programming and his Master's degree in Computer Science. Having worked on different HPC topics, including performance analysis and modeling of parallel applications, his current research focuses on the energy- and carbon-aware optimization of HPC center operations. To enable these research efforts, he operates the cluster performance and energy monitoring system of the RWTH compute cluster and its associated building infrastructure. Since 2025, he is one of the acting co-leads of the Power Measurement Team of the Energy Efficiency HPC Working Group (EE HPC WG) that maintains and develops the measurement methodology for the Green500 list.
2.45pm-3.05pm : Benchmarking emissions efficiency of software on UK National HPC facilities
Andy Turner is a senior RSE at EPCC at the University of Edinburgh. His current work is focussed on supporting researchers to get the most out of UK national HPC resources such as the ARCHER2 and DiRAC services. For the past few years, he has been working to improve the understanding and quantification of emissions associated with HPC system use and how these can be reduced.
3.05pm-3.25pm : Exploring sustainable operation of GPUs :
Adrian Jackson is the Director of Research and a Senior Research
Fellow at the Edinburgh Parallel Computing Centre (EPCC). His research
focuses on high-performance computing (HPC), encompassing data and
storage solutions, memory technologies, and application optimisation to
ensure the efficient use of large-scale computing systems. Throughout
his career, Adrian has contributed to various application domains,
including computational fluid dynamics, plasma physics, nuclear fusion,
molecular dynamics, and discrete element modelling. Currently he is
interested in exploring sustainability for HPC, including energy
efficient computing approaches.
3.30pm-4.00pm : Coffee break
4.00pm-4.45pm : Invited keynote
4.45pm-5.05pm : Multidimensiona Metrics for Sustainable Multiscale Hybrid Supercomuting
Carlos J. Barrios H. PhD. Carlos Jaime Barrios Hernández is a Full Professor at the Universidad Industrial de Santander (UIS) in Bucaramanga Colombia, and Director of the SC3UIS High Performance Computing Center in the same university. A Senior Member of the ACM and IEEE, he chairs the SCALAC consortium (Advanced Computing system for Latin America and the Caribbean) and focuses his research on High Performance Computing and Advanced Computing systems, the computing continuum, heterogeneous architectures, and the sustainability of large-scale systems. He holds a PhD from Université Nice-Sophia Antipolis and recently received his HDR from INSA Lyon in 2025. Currently, he serves as a Guest Senior Researcher at the INSA Lyon CITI Laboratory and the LIG/Inria center in Grenoble, France.
5.05pm-5.25pm : Invited industry talk
5.25pm-6.00pm : Panel discussion : All speakers
For the session, we solicit talks on all topics related to sustainable supercomputing, from data centres to hardware, and for system software to applications. This will inclide a mix of extend talks (30 mins), as well as lighting talks (15 mins). The topics of interest include, but are not limited to, the following:
Application energy/power efficiency
System and data centre power monitoring
System software for managing/optimising power
Energy efficient data centres
Managing electrical and mechanical distribution in the face of chaotic loads from HPC and AI workloads
Embodied carbon
Please submit a single paragraph description (max 200 words) of your proposed lightning talk (~15 mins), and a short bio (max 200 words) of yourself to woodacre@hpe.com with the subject ISC25 lighting talk
Deadline for submissions : April 17th 2026
If you have questions about the workshop, please email woodacre@hpe.com with the subject ISC26 Sustainable Supercomputing workshop
Mike Woodacre, Hewlett Packard, Stateline, Nevada, USA
Pekka Manninen, CSC, Helsinki, Finland
Fujiyoshi Shoji, Riken R-CCS, Japan
Michele Weiland, EPCC, The University of Edinburgh, UK
Jim Rogers, Oak Ridge National Lab, Tennessee, USA