摘要
CPU+GPU的异构模式由于比传统的超算架构更加便宜和更加环保、低碳,所以得到了越来越多的关注,在HPC的Top500中也渐渐出现了异构模式的身影。然而异构模式下的并行效率过低也是个既定的事实。本文从异构模式及GPU之间并行调度的原理出发,以Linpack测试效率为例来展开异构模式下的并行计算效率研究,并给出相应结论。
CPU＋GPU hybrid mode,comparing to traditional supercomputing architectures,is more cheaper and more environmentally friendly,low-carbon.Thus the people pay more attention on it.There are more and more systems which rank on World HPC Top500 using CPU＋GPU hybrid mode.However,the efficiency of heterogeneous parallel mode is too low.This article based on the principle of parallel schedule of hybrid mode,takes Linpack test as an example to explain the method of getting a higher efficiency of parallel computing.
出处
《计算机与现代化》
2012年第5期185-188,共4页
Computer and Modernization
