- By:
- Yin, Junqi ; Palash, Mijanur R; Laiu, Ming Tse P; Gopalakrishnan Meena, Muralikrishnan ; Gounley, John P; de Bruyn Kops, Stephen; Wang, Feiyi ; Sankaran, Ramanan ; Zhang, Pei
- Page Number:
- 347-362
- Volume:
- NA
- Publication Date:
- June 5, 2026
- Conference Name:
- 40th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2026)
- Conference Location:
- New Orleans, Louisiana, United States of America
- Conference Sponsor:
- IEEE Computer Society
- View DOI Listing:
- https://doi.org/10.1109/IPDPS65963.2026.00039
Abstract
Turbulence plays a crucial role in multiphysics applications, including aerodynamics, fusion, and combustion. Accurately capturing turbulence's multiscale characteristics is essential for reliable predictions of multiphysics interactions, but remains a grand challenge even for exascale supercomputers and advanced deep learning models. The extreme-resolution data required to represent turbulence, ranging from billions to trillions of grid points, pose prohibitive computational costs for models based on architectures like vision transformers. To address this challenge, we introduce a multiscale hierarchical Turbulence Transformer that reduces sequence length from billions to a few millions and a novel RingX sequence parallelism approach that enables scalable long-context learning. We perform scaling and science runs on the Frontier supercomputer. Our approach demonstrates excellent performance up to 1.1 EFLOPS on 32,768 AMD GPUs, with a scaling efficiency of 94%. To our knowledge, this is the first AI model for turbulence that can capture small-scale eddies down to the dissipative range in three-dimensional turbulence at high Reynolds numbers.
