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DTSTAMP:20250822T115809Z
LOCATION:Campussaal - Plenary Room
DTSTART;TZID=Europe/Stockholm:20250616T102000
DTEND;TZID=Europe/Stockholm:20250616T105000
UID:submissions.pasc-conference.org_PASC25_sess149_pos119@linklings.com
SUMMARY:P18 - GPU-Accelerated Fluid-Structure Interaction Resampling in FE
 M, Including Application of 3-Dimensional 4th-Order WENO
DESCRIPTION:Simone Riva (Università della Svizzera italiana, Euler institu
 te) and Patrick Zulian (Università della Svizzera italiana, Euler institut
 e; UniDistance Suisse)\n\nThis work addresses the HPC challenges of fluid 
 structure iteration (FSI), focusing on the computational efficiency of mes
 h resampling. A major computational challenge arises from the fact that th
 e method requires gather and scatter memory access, which introduces a sig
 nificant memory barrier, and the fraction of time to solution can be high.
  We have developed a collection of computational methods capable of achiev
 ing significant throughput on both GPU and CPU, and have had the opportuni
 ty to test them on the new Alps supercomputer al CSCS, based on the GH200 
 Grace Hooper. We have also begun to explore the possibility of using 3-dim
 ensional 4th order WENO interpolation as a transfer function, which allows
  the adaptive removal of the oscillatory behavior that occurs in classical
  interpolation methods, thus improving the quality of the results.\n\nSess
 ion Chair: Chris Cantwell (Imperial College London)\n\n
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