Large-Scale Interacting Particle System Simulation Using OpenGL

摘要

To simulate large-scale interacting particle system has been a problem, which involves a lot of complicated calculations and is difficult to achieve real-time. This paper explored the possibility of parallelizing the simulation of these large-scale particle systems and offloading them to very-parallel hardware which is usually only used for rendering the video card. We use Open Computing Language (OpenCL) for parallel update of the status of every particle and apply forces onto every particle in particle system. We propose well-conceived ideas of using OpenCL achieve particle system in parallel, which greatly improved the speed of the particle system. Using GPU implement, the n-body system achieves a tenfold increase in speed than using CPU. The speed is so fast that it can achieve real-time rendering of large-scale particle system in games or scientific research.