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DTSTART;TZID=Europe/Paris:20250827T162000
DTEND;TZID=Europe/Paris:20250827T164000
DTSTAMP:20260403T193210
CREATED:20250826T092550Z
LAST-MODIFIED:20250826T092550Z
UID:1706-1756311600-1756312800@ceec-coe.eu
SUMMARY:FLEXI: Scale-resolving simulations of compressible turbulence on modern HPC systems
DESCRIPTION:Join our own Anna Schwarz for the WHPC Europa invited session discussing our latest work preparing FLEXI for exascale and GPU-based systems. \nAbstract\nThe application of scale-resolving simulations such as LES and DNS remains challenging in numerous engineering applications due to the substantial computational demands and the limited available computational resources. It was thoroughly demonstrated in the last decade that high-order numerical methods show significant advantages in terms of computational cost required to achieve a given accuracy for DNS and LES and that they can be implemented efficiently on traditional CPU-based system architectures. However\, the improvements in performance for CPU-based systems has slowed down significantly over the last years. Consequently\, more specialised architectures\, such as GPUs\, have become increasingly popular in the last decade. These architectures still promise considerable performance improvements per generation and thus allow more complex flow cases to be tackled\, while also yielding better performance per invested amount of energy. However\, CPU codes cannot be easily run on GPU hardware\, since they exhibit a distinctly different architecture and require different programming languages. In this talk it is demonstrated how existing codebases can be translated efficiently to GPU hardware\, both in terms of implementation effort and computational performance. For this\, the unstructured DG code FLEXI~\cite{Krais2019\,Kempf2024} is utilized as an example. Finally\, it is shown that FLEXI is capable of tackling challenging large-scale problems with complex geometries on modern HPC systems.
URL:https://ceec-coe.eu/event/flexi-scale-resolving-simulations-of-compressible-turbulence-on-modern-hpc-systems/
LOCATION:TUD Dresden University of Technology   Barkhausen-Bau (BAR)\, Georg-Schumann-Str. 13  \, Dresden\, 01069\, Germany
CATEGORIES:Conference,InvitedSession
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DTSTART;TZID=Europe/Paris:20250827T164000
DTEND;TZID=Europe/Paris:20250827T170000
DTSTAMP:20260403T193210
CREATED:20250826T091453Z
LAST-MODIFIED:20250826T091453Z
UID:1702-1756312800-1756314000@ceec-coe.eu
SUMMARY:Exploring Flow Fields at Scale: GPU-Accelerated Scientific Visualization for Exascale CFD
DESCRIPTION:Join our own Susanne Malheiros at the WHPC Europa Invited Session to hear about our latest work on Vistle. \nAbstract:\nThis talk presents the ongoing efforts to port Vistle – a software for creating immersive extended reality visualizations of scientific data – to the GPU by integrating the portable visualization toolkit Viskores. The approach is illustrated by sample computational fluid dynamics (CFD) visualizations of the light-house cases from the Center of Excellence in Exascale CFD (CEEC) project.
URL:https://ceec-coe.eu/event/exploring-flow-fields-at-scale-gpu-accelerated-scientific-visualization-for-exascale-cfd/
LOCATION:TUD Dresden University of Technology   Barkhausen-Bau (BAR)\, Georg-Schumann-Str. 13  \, Dresden\, 01069\, Germany
CATEGORIES:Conference,InvitedSession
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