ORB5, a global electromagnetic gyrokinetic PIC code, was refactored with MPI/OpenMP/OpenACC and a new Larmor ring data structure, achieving single-source performance portability and multi-GPU scalability up to 24,000 GPUs.
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Gyrokinetic Simulations on Many- and Multi-core Architectures with the Global Electromagnetic Particle-In-Cell Code ORB5
ORB5, a global electromagnetic gyrokinetic PIC code, was refactored with MPI/OpenMP/OpenACC and a new Larmor ring data structure, achieving single-source performance portability and multi-GPU scalability up to 24,000 GPUs.