一种面向蒙特卡洛程序的128核可扩展体系结构

A 128-core scalable architecture for Monte Carlo application

蒙特卡洛方法是研究粒子输运问题的重要方法,为蒙特卡洛方法设计定制加速体系结构成为粒子输运模拟的研究热点。分析了一种典型的蒙特卡洛方法代理程序Quicksilver的程序特征,并对存储层次和簇规模等影响可扩展性的结构参数进行了探索,提出了一种面向蒙特卡洛程序的128核可扩展体系结构,在128核配置下实现了相比单核90倍的加速比和70.1%的扩展效率。

Monte Carlo method is an important method to study particle transport problems.Designing a customized acceleration architecture for Monte Carlo method has become a research hotspot in particle transport simulation.This paper profiles Quicksilver,a typical proxy application using Monte Carlo method,and makes an architectural exploration to the structural parameters that affect scalability,such as storage hierarchy and cluster size.Finally,a 128-core scalable architecture for Monte Carlo program is proposed,which achieves 90×speedup compared to a single core and a scaling efficiency of 70.1%under 128 cores.