SC25 IXPUG BoF

Navigating Complexity: Achieving Performance Portability in the Evolving Landscape of Accelerated HPC Systems

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Location: In-person at SC25, St. Louis, Missouri – room number 130

Date & Time: Wednesday, November 19, 2025 12:15-1:15 p.m. CST

Registration: https://sc25.supercomputing.org/attend/registration/

SC25 Session Page: https://sc25.conference-program.com/presentation/?id=bof136&sess=sess449

Event Description: With the increasing demand for AI in HPC, there has been a rapid rise in accelerated architectures, portable programming models, and frameworks. The already-daunting task of programming for accelerated systems has become even more complex. This BoF, organized by IXPUG, will focus on portable programming across a wide range of heterogeneous architectures—including Intel, Nvidia, AMD, and Arm—supporting diverse simulation, data analytics, and AI workloads. The session will explore key challenges, state-of-the-art solutions, and emerging best practices for programming across these systems, identifying common principles and methodologies that support development and long-term maintenance across sites, architectures, and scientific applications.

Agenda: 

12:15-12:20 p.m. Introductions - Dr. Amit Ruhela, Texas Advanced Computing Center
12:20-01:00 p.m. Panelist Presentations

• 12:20-12:30 p.m. Dr. David Keyes, King Abdullah University of Science & Technology
• 12:30-12:40 p.m. Dr. Andreas Herten, Forschungzentrum Juelich
• 12:40-12:50 p.m. Dr. Antonio J. Peña, Barcelona Supercomputing Center (BSC)
• 12:50-01:00 p.m. William Fowler, Intel Corporation

01:00-01:15 p.m. Open Discussion and Q&A

 Panelists:

• Dr. David Keyes, King Abdullah University of Science & Technology  
  David Keyes is a professor of Applied Mathematics, Computer Science, and Mechanical Engineering at the King Abdullah University of Science and Technology (KAUST), where he was a founding Dean in 2009 and founding Director of the Extreme Computing Research Center in 2012. He is also an adjunct professor of Applied Mathematics and Applied Physics at Columbia University, where he formerly held the Fu Foundation Chair. Keyes focuses on scalable solvers that exploit hierarchy and data sparsity, targeting power-austere emerging architectures. He collaborates on large-scale applications in energy and environment that demand high performance because of resolution, dimension, high fidelity physical models, or the “multi-solve” requirements of optimization, control, sensitivity analysis, inverse problems, data assimilation, or uncertainty quantification.
• Dr. Andreas Herten, Forschungzentrum Juelich
  Andreas Herten is a researcher at Jülich Supercomputing Centre, heading the Accelerating Devices Lab within the Novel System Architecture Design Division, which he co-leads; he is also a lecturer at the University of Cologne. He is part of the NVIDIA Application Lab at Jülich, in which he analyzes, ports, and optimizes scientific applications for GPUs. He is part of the core JUPITER team to deploy the system. Andreas is also involved in EU-funded projects for improving scalability of GPU-enabled applications and other accelerators, like RISC-V.