多核微处理器体系结构级功耗模型分析

来源期刊:中南大学学报(自然科学版)2019年第7期

论文作者:郭阳 陈卓 刘畅 侯申

文章页码:1611 - 1619

关键词:多核处理器;体系结构级;峰值功耗;工艺模拟器

Key words:multi-core processor; architecture level; peak power consumption; process simulator

摘    要:利用FT-SHSim模拟工具平台,对主流的微处理器核心模型SMT(同步多线程,simultaneous multithreading)和MSS(适度超标量,moderate superscalar)进行建模。采用先进CMOS工艺,在体系结构级进行功耗评估的模拟实验,得到不同微处理器结构的工艺需求和不同工艺下同微处理器结构可以实现的性能及所需的规模,为微处理器设计的早期阶段提供工艺需求与实现方法的参考价值,从而实现提高设计质量、缩短设计周期、加快设计收敛的目的。研究结果表明:在最小线宽为22 nm的工艺下,128核SMT处理器模型峰值功耗为116 W,64核MSS处理器峰值功耗为161 W。

Abstract: The FT-SHSim simulation tool platform was used to model the mainstream microprocessor core models SMT and MSS. Using advanced CMOS technology, the simulation experiment of power consumption evaluation at the architecture level obtained the process requirements of different microprocessor structures and the performance and scale required by the same microprocessor structure during different processes. This provided a reference value for process requirements and implementation methods for the early stages of design, improving quality, shortening cycles, and accelerating design convergence. The results show that in the 22 nm process of the minimum line width, the 128-core SMT processor model has a peak power of 116 W and 64-core MSS processor model has a peak power of 161 W.

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