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DTSTAMP:20260615T072748Z
LOCATION:Bldg. 6 - Room 004
DTSTART;TZID=Europe/Stockholm:20260629T120000
DTEND;TZID=Europe/Stockholm:20260629T123000
UID:submissions.pasc-conference.org_PASC26_sess168_pap124@linklings.com
SUMMARY:Multi-Device Shallow Water Simulations on CPUs, GPUs, and FPGAs wi
 th SYCL
DESCRIPTION:Markus Büttner (University of Bayreuth); Christoph Alt (Paderb
 orn University, Friedrich-Alexander-Universität Erlangen-Nürnberg); Tobias
  Kenter (Paderborn University); Harald Köstler (Friedrich-Alexander-Univer
 sität Erlangen-Nürnberg); Christian Plessl (Paderborn University); and Vad
 ym Aizinger (University of Bayreuth)\n\nShallow water models are an essent
 ial tool for simulating tsunamis and storm surges, where they need to effi
 ciently execute for different spatial resolutions and time scales. In this
  work, we present a discontinuous Galerkin shallow water solver implemente
 d in SYCL providing a common numerical code base suitable for portable and
  scalable multi-device execution on CPUs, GPUs, and FPGAs. To this end, di
 fferent communication strategies are adapted to the available device capab
 ilities. The implementation is validated using a range of Mediterranean Se
 a meshes of increasing resolution. In a challenging strong scaling scenari
 o, FPGAs reach the highest aggregate performance. GPUs by AMD, Intel, and 
 NVIDIA from three different clusters can play out their superior peak perf
 ormance in a weak scaling benchmark and achieve a parallel efficiency of u
 p to 0.8-0.9 on 64 GPUs.\n\nDomain: Engineering, Computational Methods and
  Applied Mathematics\n\nSession Chair: Edward Erasmie-Jones (King's Colleg
 e London)\n\n
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