跟踪界面活动网格法并行程序的性能分析

随着超级计算机向着更大规模趋势发展,并行算法与并行机相结合的可扩展性日益得到重视,特别是对实际应用程序的可扩展性研究愈为迫切.新的并行机的发展己成为科学计算本身的一个巨大挑战.目前仍然缺乏能求解“巨大挑战性问题”的数值方法和并行度高、可扩展性好的应用软件.大规模并行计算的一个关键问题是可扩展性问题1].不可能期望通过将串行代码移植到并行系统上就能获得很大的性能增益.当处理机节点数超过64,16甚至8时,这种做法将使可扩展性降低.我国目前仍局限于中小型计算,原有算法和并行软件是否能求解更大规模问题是个值得关注的问题.

PERFORMANCE ANALYSIS OF THE TRACER INTERFACES MOVING GRID METHOD PROGRAM

The scalability and resource requirements analysis can help users to better understand and optimize their parallel programs. Furthermore, the resource requirements of the typical applications can tell the machine designers which machines are suitable for these applications to run at full speed. This paper succeeds our previous work on scalability studies, such as the nearoptimal scaling model, time scalability and efficiency scalability metrics. We use them to analyze the scalability of a typical application, namely, the tracer interfaces moving grid method parallel program. We also provide a method to analyze its resource requirements. All these methods can be used to analyze more applications to understand their performance and requirements.