地球引力位函數在流處理器上的實現與分析

流處理器是新型高性能微處理器的代表之一。該文通過分析Imagine 流處理器體系結構，實現某衛星軌道預報系統核心子程序
CBPTRB，對基于Imagine 的鐘精確模擬器ISim 進行性能測試，并將結果與該程序在普通x86 處理器上的性能進行對比，同時根據實驗結
果提出改進方法。
關鍵詞：Imagine 流處理器；流編程模型；CBPTRB 程序；性能評估
Implementation and Analysis of Gravitational
Potential Function on Stream Processors
CAO Wei, CHE Yong-gang, WANG Zheng-hua
(State Key Lab of Parallel and Distributed Processing, School of Computer, National University of Defense Technology, Changsha 410073)
【Abstract】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.
【Key words】Imagine stream processor; stream programming model; CBPTRB program; performance evaluation