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DTSTAMP:20260624T171343Z
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DTSTART;TZID=Europe/Stockholm:20260630T134500
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UID:submissions.pasc-conference.org_PASC26_sess142@linklings.com
SUMMARY:MS3B - Latest Developments in First Principle-Based HPC Simulation
 s for Magnetic Fusion
DESCRIPTION:Organizer(s): Eric Sonnendrücker, Florian Hindenlang (Max Plan
 ck Institute for Plasma Physics), and Stephan Brunner (EPFL)\n\nNuclear fu
 sion is considered a credible complement to renewable energies in the effo
 rt towards reaching sustainable development goals. The currently most adva
 nced and promising fusion reactor devices are the tokamak and the stellara
 tor, which are based on the concept of magnetic confinement. Due to the hi
 gh cost of building such machines as well as the complexity of the process
 es involved, comprehensive numerical simulations with a substantial HPC co
 mponent are indispensable to progress our understanding of the underlying 
 physics. This minisymposium is dedicated to the development and applicatio
 n of first-principle kinetic and gyrokinetic codes. As these models are co
 mputing a 5D or 6D distribution function, the codes will need very large c
 omputational resources so that special attention needs to be taken to opti
 mize as well the algorithms as their implementation. The four talks will b
 e dedicated to performance and optimization of the CGYRO gyrokinetic code 
 for multiscale plasma turbulence simulation, to the development of the new
  exascale semi-Lagrangian gyrokinetic code GYSELA-X++ with first benchmark
 s and physics results, to the development of a new geometric Particle-In-C
 ell code GEMPICX based on the AMReX framework and to global gyrokinetic si
 mulation with the flux-tube code Stella.\n\nLeveraging Exascale Computing 
 for Multiscale Turbulence Simulation of Fusion Plasmas\n\nPredicting turbu
 lence and transport in burning plasma regimes is central to designing futu
 re fusion pilot plants with optimal energy confinement and fusion performa
 nce.  CGYRO is a scalable, GPU-optimized 5D gyrokinetic solver for multisc
 ale electromagnetic plasma turbulence.  This turbulence bridge...\n\n\nEmi
 ly A. Belli and Jeff Candy (General Atomics) and Igor Sfiligoi (University
  of California San Diego)\n---------------------\nIntroduction to and Late
 st Developments in GEMPICX\n\nThe GEMPICX framework, recently made public 
 (https://github.com/NMPPMaxPlanck/GEMPICX), is an AMReX-based (https://amr
 ex-codes.github.io/amrex/) structure preserving plasma physics simulation 
 code still undergoing active development. We will present an overview of t
 he current capabilities of the fra...\n\n\nEmil Poulsen (Max Planck Instit
 ute for Plasma Physics)\n---------------------\nRecent Advances in Electro
 magnetic and Non-Axisymmetric Turbulent Transport Simulations for Magnetic
  Confinement Fusion Plasmas\n\nDirect numerical simulation of turbulence i
 n magnetic confinement fusion plasmas is challenging due to the presence o
 f a diverse set of physical phenomena, spanning a wide range of space and 
 time scales.  This is particularly evident for the reactor-relevant plasma
 s that are an increasing focus of t...\n\n\nMichael Barnes (University of 
 Oxford); Georgia Acton (Max Planck Institute for Plasma Physics); and Yuji
 a Zhang (United Kingdom Atomic Energy Authority, University of Oxford)\n--
 -------------------\nThe Gysela-X project: Developing a Successor to GYSEL
 A for Exascale Performance and New Physics\n\nThe Fortran code GYSELA is o
 ne of the leading codes for global flux-driven simulations of fusion plasm
 as. The Gysela-X project consists in the development of a series of C++ co
 des, culminating in GYSELA’s successor, Gysela-X++, which will feature new
  physics capabilities, including in particul...\n\n\nKevin Obrejan and Vir
 ginie Grandgirard (CEA, IRFM); Yuuichi Asahi and Julien Bigot (CEA, Maison
  de la Simulation); Emily Bourne (EPFL); Ariel De Vora and Peter Donnel (C
 EA, IRFM); Michael Go (Nanyang Technological University); Alexander Hoffma
 nn (Max Planck Institute for Plasma Physics); Abdelhadi Kara and Philipp K
 rah (CEA, IRFM); Etienne Malaboeuf (CINES); Thomas Padioleau (CEA, Maison 
 de la Simulation); Matthieu Protais (CEA, IRFM); and Pauline Vidal (Max Pl
 anck Institute for Plasma Physics)\n\nDomain: Physics, Computational Metho
 ds and Applied Mathematics\n\nSession Chair: Eric Sonnendrücker (Max Planc
 k Institute for Plasma Physics, Technical University of Munich)
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