Mainz 2022 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 12: New Accelerator Concepts 2
AKBP 12.2: Vortrag
Mittwoch, 30. März 2022, 16:15–16:30, AKBP-H14
Traveling-wave electron accelerators -- Getting PIConGPU simulations ready for exascale — •Alexander Debus1, Sunita Chandrasekaran2,3, Klaus Steiniger1, René Widera1, Sergei Bastrakov1, Felix Meyer1, Richard Pausch1, Marco Garten1, Thomas Kluge1, Jeffrey Kelling1, Benjamin Hernandez6, Matthew Leinhauser2,3, Jeff Young2,5, Franz Pöschel1, Axel Hübl4, David Rogers6, Guido Juckeland1, and Michael Bussmann1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2CASUS, Center for Advanced Systems Understanding, Görlitz, Germany — 3University of Delaware, Newark, Delaware, USA — 4Lawrence Berkeley National Laboratories, Berkeley, CA, USA — 5Georgia Institute of Technology, Atlanta, GA, USA — 6Oak Ridge National Laboratory, Knoxville, TN, USA
Traveling-wave electron acceleration (TWEAC) is an advanced laser-plasma accelerators scheme, which is neither limited by dephasing, nor by pump depletion or diffraction. Such accelerators are scalable to energies beyond 10 GeV without the need for staging and are candidates for future compact electron-positron colliders.
TWEAC simulations to high energies require exascale compute resources. Within the early-access program (CAAR) for the upcoming exascale Frontier cluster at ORNL, we prepare PIConGPU, a 3D3V particle-in-cell code, for large-scale TWEAC simulations, including tuning and refining PIConGPU to run on the latest AMD GPUs. In this talk we present progress in TWEAC simulations and the technical advances in PIConGPU that enable running on Frontier.