Acceleration of Smoothed Particle Hydrodynamics using GPUs

Abstract

Smoothed Particle Hydrodynamics (SPH) is a particle method which computes fluid motion by calculating particle interaction forces. When graphics processing units (GPUs) are used for accelerating SPH, it is difficult to search neighboring particles. In this study, we developed a method to simulate SPH entirely on the GPU in which neighboring particles are searched for on the GPU. Then the computation time of the proposed method was measured and compared with that of the calculation on CPUs. The comparison showed that the proposed method could accelerate computation drastically.