摘要: 片上多线程(CMT)是未来高性能处理器的发展方向,而软件模拟是处理器体系结构研究和设计中不可或缺的技术手段。该文基于SimpleScalar工具集设计并实现了CMT节拍级模拟器——OpenSimCMT,对CMT体系结构的设计和评测提供支持。OpenSimCMT特点如下:(1)支持同时多线程(SMT)和片上多处理器(CMP)的模拟;(2)架构开放,配置灵活,可根据具体研究目标随时进行扩展,添加新的模拟内容及相关统计;(3)功能全面,对线程间资源竞争与共享、各功能单元、流水段、分支预测、多级cache等全方位模拟,模拟结果准确。
关键词:
片上多线程,
模拟,
微处理器,
高性能
Abstract: Chip multithreading (CMT) represents the direction for future high-performance processors, and simulation is an integral part of the processor architecture research and design process. This paper presents the design and implementation of a SimpleScalar-based cycle-level simulator—OpenSimCMT, which serves for designing and evaluating the CMT architectures. OpenSimCMT features that: (1) supporting the simulation of simultaneous multithreading (SMT) as well as chip multiprocessors (CMP); (2) open framework and well configurable, being extendible to accommodate a given research goal, and readily to append new simulation contents and relative statistic; (3) all-around simulation, supporting inter-thread resource sharing and competition, various function units, pipeline, branch prediction, multi-level caches, etc, facilitating accurate simulation.
Key words:
CMT,
simulation,
microprocessor,
high-performance
中图分类号:
杨 华;崔 刚;吴智博;刘宏伟. CMT模拟器的设计与实现[J]. 计算机工程, 2007, 33(19): 251-252,.
YANG Hua; CUI Gang; WU Zhibo; LIU Hong-wei. Design and Implementation of CMT Simulator[J]. Computer Engineering, 2007, 33(19): 251-252,.