地球引力位函数在流处理器上的实现与分析

Implementation and Analysis of Gravitational Potential Function on Stream Processors

流处理器是新型高性能微处理器的代表之一。该文通过分析Imagine流处理器体系结构,实现某卫星轨道预报系统核心子程序CBPTRB,对基于Imagine的钟精确模拟器ISim进行性能测试,并将结果与该程序在普通x86处理器上的性能进行对比,同时根据实验结果提出改进方法。

The stream processor is one of the representative for high performance processors. On the basis of analyzing the structure of Imagine stream processor, this paper implements the kernel procedure of a satellite orbit predicting system called CBPTRB. The performance of the cycle-accurate simulator based on ISim is tested, and the results of which is compared with the one getting from general x86 processor. According to the experimental results, the improved method is introduced.