地球引力位函數(shù)在流處理器上的實(shí)現(xiàn)與分析

地球引力位函數(shù)在流處理器上的實(shí)現(xiàn)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(guò)分析Imagine 流處理器體系結(jié)構(gòu)，實(shí)現(xiàn)某衛(wèi)星軌道預(yù)報(bào)系統(tǒng)核心子程序
CBPTRB，對(duì)基于Imagine 的鐘精確模擬器ISim 進(jìn)行性能測(cè)試，并將結(jié)果與該程序在普通x86 處理器上的性能進(jìn)行對(duì)比，同時(shí)根據(jù)實(shí)驗(yàn)結(jié)
果提出改進(jìn)方法。
關(guān)鍵詞：Imagine 流處理器；流編程模型；CBPTRB 程序；性能評(píng)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