Heterogeneous Computing with OpenCL

Chapter 10. OpenCL Case Study

Mixed Particle Simulation

Justin Hensley and Takahiro Harada

Advanced Micro Devices, Incorporated, Sunnyvale, California

This chapter discusses a mixed particle simulation.

Keywords Example program, OpenCL, particle simulation, zero copy (or buffer sharing)

Introduction

This case study examines leveraging both the CPU and the GPU to implement a mixed-sized particle simulation. Without a loss of generality, this example is restricted to two dimensions to keep the kernels easily understandable. In addition, this case study leverages OpenCL's ability to share data between the CPU and the GPU, which is beneficial on highly integrated devices such as AMD's APUs.

Implementing a simple simulation with uniform particle sizes on ...