Efforts Toward GPU Computing on the Earth Simulator¶
Akira Masago (JAMSTEC)
Abstract¶
The Earth Simulator is a general-purpose supercomputer at JAMSTEC, used for advanced simulations in fields such as weather, earthquakes, and tsunamis. It features three types of computing nodes: CPUs, Vector Engines, and GPUs. Our department focuses on leveraging GPUs to improve computational efficiency and scientific output. We are tuning and evaluating the performance of several key applications—MSSG for weather modeling, WRF for atmospheric research, and AkaiKKR for quantum mechanical calculations—on the Earth Simulator's GPU nodes. While we also provide GPU programming workshops, our main efforts center on optimizing real-world scientific codes for the system’s unique architecture.