Godson-T:An Efficient Many-Core Architecture for Parallel Program Executions  

作　　者：范东睿 袁楠 张军超 周永彬 林伟 宋风龙 叶笑春 黄河 余磊 龙国平 张浩 刘磊 

机构地区：[1]Key Laboratory of Computer Systems and Architecture, Institute of Computing Technology, Chinese Academy of Sciences

出　　处：《Journal of Computer Science & Technology》2009年第6期1061-1073,共13页计算机科学技术学报（英文版）

基　　金：Supported by the National Basic Research 973 Program of China under Grant No. 2005CB321600;the National High-Tech Research and Development 863 Program of China under Grant No. 2009AA01Z103;the National Natural Science Foundation of Chinaunder Grant No. 60736012;the National Science Fund for Distinguished Young Scholars under Grant No. 60925009;the Beijing Natural Science Foundation under Grant No. 4092044

摘　　要：Moore＇s law will grant computer architects ever more transistors for the foreseeable future, and the challenge is how to use them to deliver efficient performance and flexible programmability. We propose a many-core architecture, Godson- T, to attack this challenge. On the one hand, Godson-T features a region-based cache coherence protocol, asynchronous data transfer agents and hardware-supported synchronization mechanisms, to provide full potential for the high efficiency of the on-chip resource utilization. On the other hand, Godson-T features a highly efficient runtime system, a Pthreadslike programming model, and versatile parallel libraries, which make this many-core design flexibly programmable. This hardware/software cooperating design methodology bridges the high-end computing with mass programmers. Experimental evaluations are conducted on a cycle-accurate simulator of Godson-T. The results show that the proposed architecture has good scalability, fast synchronization, high computational efficiency, and flexible programmability.Moore＇s law will grant computer architects ever more transistors for the foreseeable future, and the challenge is how to use them to deliver efficient performance and flexible programmability. We propose a many-core architecture, Godson- T, to attack this challenge. On the one hand, Godson-T features a region-based cache coherence protocol, asynchronous data transfer agents and hardware-supported synchronization mechanisms, to provide full potential for the high efficiency of the on-chip resource utilization. On the other hand, Godson-T features a highly efficient runtime system, a Pthreadslike programming model, and versatile parallel libraries, which make this many-core design flexibly programmable. This hardware/software cooperating design methodology bridges the high-end computing with mass programmers. Experimental evaluations are conducted on a cycle-accurate simulator of Godson-T. The results show that the proposed architecture has good scalability, fast synchronization, high computational efficiency, and flexible programmability.

关 键 词：MANY-CORE parallel computing multithread data communication thread synchronization runtime system 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]