Dortmund 2021 – scientific programme

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AKPIK: Arbeitskreis Physik, moderne Informationstechnologie und Künstliche Intelligenz

AKPIK 4: AKPIK III: Simulation & Application

AKPIK 4.3: Talk

Thursday, March 18, 2021, 16:30–16:45, AKPIKa

GPU Accelerated IACT/Fluorescence Simulation in Atmosphere — •Dominik Baack for the CORSIKA 8 collaboration — TU Dortmund, Dortmund, Germany

As several new or upgraded cosmic ray experiments are starting in the very near future, the need for high-quality simulation will increase equally. In addition, the CORSIKA 7 Fortran codebase is being completely rewritten to a "state of the art" C++ simulation framework, this will allow the use of new techniques and modifications that were not possible in previous versions.

One of the biggest runtime consumers in the classic simulation, over 80 percent, is the propagation of optical photons, chernekov and fluorescence, through the atmosphere. With the wider availability of GPUs and other parallel accelerators in computing clusters, the runtime of this specific workload can be reduced significantly. With the application of early cuts optimized by machine learning and specific hardware tailored for parallel execution, such as GPUs, the runtime can be greatly reduced.