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LOCATION:HG F 26.3
DTSTART;TZID=Europe/Stockholm:20240605T100000
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UID:submissions.pasc-conference.org_PASC24_sess119_msa105@linklings.com
SUMMARY:Development of a Performance Portable Geometric PIC Code
DESCRIPTION:Minisymposium\n\nEric Sonnendrücker (Max Planck Institute for 
 Plasma Physics, Technical University of Munich)\n\nThe fully kinetic Vlaso
 v-Maxwell coupled to an appropriate collision operator contains all the ph
 ysics for describing the evolution of a magnetic fusion plasma in a Tokama
 k or a Stellarator. However, the Vlasov equation is posed in a 6D phase sp
 ace, so that it requires huge computational resources and very efficient c
 odes on modern supercomputing architectures in particular on GPUs. Moreove
 r, very long time computations are required for most relevant physics prob
 lems. For this reasons, keeping at the discrete level the hamiltonian stru
 cture of the continuous problem is a huge asset. This can be obtained by a
  so-called geometric Particle in Cell (PIC) discretization, which discreti
 zes the Poisson bracket and the Hamiltonian leading to the Vlasov-Maxwell 
 equations rather than directly the equations themselves.\nFor an efficient
  and performance portable implementation we rely on the AMReX framework wh
 ich offers performance portable data structures for grid based as well as 
 for particle quantities. We will present the latest developments made in t
 he code and the different models that have been implemented.\n\nDomain: Ph
 ysics, Computational Methods and Applied Mathematics\n\nSession Chairs: St
 ephan Brunner (EPFL); Eric Sonnendrücker (Max Planck Institute for Plasma 
 Physics, Technical University of Munich); and Laurent Villard (EPFL)
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