高性能计算中处理器功耗特征的评测与分析

高性能计算系统的系统结构和应用模式与单机系统或商用机群服务器系统都有很大的不同,掌握功耗特征是提高能效的前提。本文将支撑功耗管理的低功耗技术分为动态资源休眠和动态速率调节两类,并就处理器的这两类机制在高性能计算中的应用进行评测,验证了功耗管理在高性能计算中的有效性,量化分析了处理器功耗特征,指出了当前管理方案的不足及改进设想,对进一步能耗优化有重要的指导意义。

Evaluation of Processor Power in High Performance Computing

High performance computing (HPC) system has its special architecture and applications, and grasping the characteristics of power consumption is the basis to improve energy efficiency. The paper classifies the power management techniques into two types: dynamic resource sleep and dynamic speed scaling, evaluates the two mechanisms in processors, and demonstrates their significant potentials in HPC. The analysis of the energy consumption characteristics and the weak-nesses of the current solutions is directive to future energy optimization.