What question did this study set out to answer?

This research aims to develop a GPU-accelerated atmospheric simulation for modeling tropical cyclone intensification.

July 4, 2026Open Access

A GPU-accelerated simulation of rapid intensification of a tropical cyclone with observed heating

SKSoonpil KangLawrence Livermore National Laboratory FGFrancis X. GiraldoNew Jersey Institute of Technology SCSeth CampNvidia (United States)

Key Points

This research aims to develop a GPU-accelerated atmospheric simulation for modeling tropical cyclone intensification.
Utilized OpenACC directive-based programming to port the atmospheric model to the GPU.
Implemented main functions and kernels for GPU acceleration.
Conducted performance tests to evaluate energy efficiency and scalability.
The GPU-accelerated code achieves high-fidelity simulations of tropical cyclones.
Performance tests indicate strong scaling and energy efficiency in simulations.
Results reveal effective modeling under varying heating conditions.

Abstract

This paper presents a limited-area atmospheric simulation of a tropical cyclone accelerated using GPUs. The OpenACC directive-based programming model is used to port the atmospheric model to the GPU. The GPU implementation of the main functions and kernels is discussed. The GPU-accelerated code produces high-fidelity simulations of a realistic tropical cyclone forced by observational latent heating. Performance tests show that the GPU-accelerated code yields energy-efficient simulations and scales well in both the strong and weak limit.

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