计算机工程与科学2018，Vol.40Issue(2)：224-230,7.DOI:10.3969/j.issn.1007-130X.2018.02.005
异构高性能计算系统Linpack效率受限因素分析
Analysis of the factors limiting Linpack efficiency of heterogeneous high-performance computing systems
摘要
Abstract
Energy consumption is a major challenge for current high-performance computing (HPC) system design.The technique of heterogeneous computing with accelerators connected to host processor can improve the system energy efficiency,and has been widely applied in HPC.However,heterogeneous systems have lower Linpack efficiency in comparison to homogeneous systems with the equivalent scale.Aiming at this problem,from the perspective of structural design,based on the design parameters and performance data of real computing systems,this paper analyzes the main factors limiting the Linpack efficiency of heterogeneous HPC systems and their demands of structural design.Besides,the analysis is verified with a Linpack performance model tailored for heterogeneous systems.This study results are of guiding significance to Linpack performance optimization and efficient architecting on future heterogeneous systems.关键词
异构/高性能/Linpack/效率Key words
heterogeneous/high performance/Linpack/efficiency分类
信息技术与安全科学引用本文复制引用
贾迅,邬贵明,谢向辉..异构高性能计算系统Linpack效率受限因素分析[J].计算机工程与科学,2018,40(2):224-230,7.基金项目
国家自然科学基金(91430214) （91430214）
