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BEGIN:VEVENT
DTSTAMP:20260421T090512Z
LOCATION:Bldg. 6 - Room 003
DTSTART;TZID=Europe/Stockholm:20260629T160000
DTEND;TZID=Europe/Stockholm:20260629T163000
UID:submissions.pasc-conference.org_PASC26_sess115_msa208@linklings.com
SUMMARY:From Physics to Hardware: Co-Designing Fusion Codes for Exascale S
 ystems
DESCRIPTION:Emily Bourne (EPFL), Virginie Grandgirard (CEA), Yuuichi Asahi
  and Julien Bigot (Maison de la Simulation), Ariel De Vora and Peter Donne
 l (CEA), Alexander Hoffmann (Max Planck Institute for Plasma Physics), Abd
 elhadi Kara and Philipp Krah (CEA), Etienne Malaboeuf (CINES), Kevin Obrej
 an (CEA), Thomas Padioleau (Maison de la Simulation), Matthieu Protais (CE
 A), and Pauline Vidal (Max Planck Institute for Plasma Physics)\n\nPlasma 
 fusion releases massive amounts of energy, making it an important area of 
 research for future energy production. However, the experimental devices r
 equired to study magnetically confined plasmas are extremely expensive. Nu
 merical simulations are therefore a crucial tool for studying such systems
 .\n\nAccurately simulating plasmas in realistically sized devices requires
  solving high-dimensional models at exascale.\nIn order to run on such mac
 hines, code must adapt to heterogeneous hardware architectures, achieving 
 performance portability across a variety of systems; while simultaneously 
 remaining readable for a non-HPC audience in order to facilitate the devel
 opment of new physics models.\n\nThis presentation will describe the desig
 n of the Gyselalib++ library, a portable C++ library for semi-Lagrangian k
 inetic and gyrokinetic simulations.\nIt will focus on the interaction betw
 een physics models, numerical algorithms, and hardware constraints, and ho
 w design decisions at each level influence overall performance and scalabi
 lity.\n\nDomain: Engineering, Physics, Computational Methods and Applied M
 athematics\n\nSession Chairs: Gilles Fourestey (EPFL) and Filippo Spiga (N
 VIDIA Inc.)\n\n
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