NAISS User Forum 2026
When: 6-7 October, lunch to lunch
Where: World Trade Center, Stockholm
How: Hybrid (but we really prefer to meet you in person!)
Welcome to the 2026 NAISS User Forum! Preparations are well underway, and registrations are now open.
Keynote speaker: Jeff Hammond, NIVIDA
Jeff Hammond is a Distinguished Engineer at NVIDIA in the data center software organisation, focused on GPU communications. He has extensive experience with the design and use of parallel programming models and scientific applications. His most notable achievements include the MPI-5 Application Binary Interface standard, development of the MPI-3 one-sided communication software ecosystem, and contributions to the NWChem quantum chemistry project. He received a PhD in Chemistry from the University of Chicago in 2009.
He will talk about high-performance communication software for GPU supercomputers and explain NCCL and NVSHMEM, including their historical context from MPI and SHMEM. The functionality and performance will be demonstrated through an example from linear algebra. Real world results from both scientific and commercial AI use cases will be described.
Preliminary programme
| Tuesday 6 October | |
| 11:30-13:00 | Welcome L U N C H |
| 13:00-13:30 | Introduction Erik Lindahl, NAISS Director |
| 13:30-15:00 | User success stories (3 presentations and discussions) |
| 15:00-15:30 | C O F F E E |
| 15:30-16:00 | USAC |
| 16:00-16:30 | Arrhenius technical presentation: HPC partition, AI partition, Sensitive Data partition Andreas Johansson, Technical Director |
| 16:30-17:00 | NAISS user support strategy Debasmita Samaddar, User Support Director |
| 17:00-18:00 | Mingle and posters session AI/ML: Viktor Rehnberg Astrophysics: Chia-Jung Hsu Bioinformatics: Marcus Lundberg CFD: Arash Banaei Climate: Hamish Struthers Computer Science: Jonas Lindemann Material Science: Johan Hellsvik Mathematics/Numerical computing: Birgitte Brydsö Molecular Dynamics: Pedro Ojeda May Quantum Chemistry: Fabrice Saintmont Training: Joachim Hein |
| 18:00-21:00 | D I N N E R |
| Wednesday 7 October | |
| 8:30-10:00 | Keynote: Multi-GPU Programming in NCCL and NVSHMEM Jeff Hammond, Software Engineer, NVIDIA |
| 10:00-10:30 | C O F F E E |
| 10:30-11:00 | Hands-on support presentation (strategy for your support group, what you recommend, what codes, whom to talk to, etc) |
| 11:00-11:30 | NAISS allocations Peter Münger, Working Group Chair of National Allocations Committee (NAC) |
| 11:30-12:00 | Summary and conclusion Erik Lindahl |
| 12:45-13:45 | Closing L U N C H |