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BEGIN:VEVENT
DTSTAMP:20211207T054723Z
LOCATION:240-241-242
DTSTART;TZID=America/Chicago:20211116T163000
DTEND;TZID=America/Chicago:20211116T170000
UID:submissions.supercomputing.org_SC21_sess247_gb102@linklings.com
SUMMARY:Symplectic Structure-Preserving Particle-in-Cell Whole-Volume Simu
 lation of Tokamak Plasmas to 111.3 Trillion Particles and 25.7 Billion Gri
 ds
DESCRIPTION:ACM Gordon Bell Finalist, Awards Presentation\n\nSymplectic St
 ructure-Preserving Particle-in-Cell Whole-Volume Simulation of Tokamak Pla
 smas to 111.3 Trillion Particles and 25.7 Billion Grids\n\nXiao, SymPIC\n\
 nWe employ our recently developed explicit second order charge-conservativ
 e symplectic electromagnetic particle in-cell (PIC) scheme in the cylindri
 cal mesh to simulate the whole-volume magnetic confinement toroidal plasma
 s on the new Sunway supercomputer. From a large-scale simulation of magnet
 ized toroidal plasma with 111.3 trillion particles and 25.7 billion grids,
  we have obtained a sustained performance exceeding 201.1 PFLOP/s (double 
 precision) with the fastest iteration step achieving 298.2 PFLOP/s (double
  precision). For the first time, unprecedented high resolution evolution o
 f 6D electromagnetic fully kinetic plasmas based on 2D equilibrium profile
 s from Experimental Advanced Superconducting Tokamak (EAST) and designed o
 peration state of China Fusion Engineering Test Reactor (CFETR) are presen
 ted, and edge micro-instabilities can be investigated directly. This shows
  the possibility to study crucial problems and phenomena in the magnetic c
 onfinement toroidal plasma directly using the symplectic electromagnetic f
 ully kinetic PIC method on world’s leading supercomputers.\n\nTag: Acceler
 ator-based Architectures, Applications, Computational Science, Extreme Sca
 le Computing, Green Computing, Performance, Scientific Computing\n\nRegist
 ration Category: Tech Program Reg Pass
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