JSC Experts Win Best Paper Award at ISAV

JSC would like to congratulate Mathis Bode, Jens Henrik Göbbert, Jonathan Windgassen, and their collaborators from Argonne National Laboratory (USA) on winning the Best Paper Award for their paper entitled “Scaling Computational Fluid Dynamics: In Situ Visualization of NekRS using SENSEI”. The award was presented at the “ISAV 2023: In Situ Infrastructures for Enabling Extreme-scale Analysis and Visualization” workshop, which took place in conjunction with SC23 on 13 November 2023 in Denver, Colorado, USA.

In their paper, the team writes about a novel pipeline for in situ and in transit visualization and analysis utilizing SENSEI, ADIOS2, and ParaView in Python. The aim is to solve the dilemma of having to choose between data accuracy or decreasing the resolution for computational fluid dynamics on GPU-powered HPC systems. Their approach takes more regular data snapshots directly from memory and thus bypasses the pitfalls of checkpointing. The NekRS application is a GPU-centric thermal fluid simulation, which showcases diverse in situ and in transit strategies. Experiments on the Polaris and JUWELS Booster supercomputers were conducted to demonstrate real-world implications, which offered crucial insights into how efficient data management can be achieved without compromising accuracy.

The paper is available online: https://doi.org/10.1145/3624062.3624159

Contacts: Mathis Bode and Jens Henrik Göbbert

from JSC News No. 300, 12 December 2023