《计算机应用研究》|Application Research of Computers

CPU+MIC异构系统中动态请求处理模型研究

Study on dynamic request processing model in CPU+MIC heterogeneous system

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作者 尤国华,刘媛,高东
机构 北京化工大学 信息科学与技术学院,北京 100029
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文章编号 1001-3695(2020)12-029-3667-04
DOI 10.19734/j.issn.1001-3695.2019.07.0557
摘要 为满足日益增加的服务器端的计算需求,更多的协处理器(如GPU和MIC)成为服务器端的新成员,参与服务器端计算,但是传统的服务器端软件(如Web服务器软件等)不能充分发挥协处理器的性能。为充分利用MIC的性能,提升单台Web服务器的服务质量,针对CPU+MIC的异构硬件体系提出了一种新的动态请求处理模型。该模型基于事件驱动模型和线程池模型,可将部分动态请求调度至MIC执行,并行处理动态请求,兼顾了CPU和MIC间的负载均衡。仿真实验表明,该模型在平均响应时间、吞吐量和99%响应时间等方面均优于现有的Web服务器软件模型。
关键词 异构系统; MIC协处理器; 动态请求; 调度; Web服务器
基金项目 国家自然科学基金资助项目(61703026)
中央高校基本科研业务费资助项目(PT1607)
本文URL http://www.arocmag.com/article/01-2020-12-029.html
英文标题 Study on dynamic request processing model in CPU+MIC heterogeneous system
作者英文名 You Guohua, Liu Yuan, Gao Dong
机构英文名 College of Information Science & Technology,Beijing University of Chemical Technology,Beijing 100029,China
英文摘要 To meet the increasing requirements of computing in server-side, more co-processors, such as GPU and MIC, become the new components of server-side. However, traditional serve-side software, such as Web server software etc, could not make full use of the performance of these co-processors. In order to exploit the performance of MIC co-processors and improve the quality of service of a single Web server node, this paper proposed a new dynamic request processing model, which aimed at CPU and MIC co-processors heterogeneous systems. This model could schedule some dynamic requests to MIC co-processors and handle these dynamic requests in parallel with CPU on basis of event driven model and thread pool model. Furthermore, this model could also keep balance between CPU and MIC co-processors by adopting adaptive load balance algorithm. Simulation experiments show that this model is superior to the existing Web server software model in mean response time, throughput and 99% response time.
英文关键词 heterogeneous system; MIC co-processor; dynamic request; scheduling; Web server
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收稿日期 2019/7/31
修回日期 2019/9/8
页码 3667-3670
中图分类号 TP301
文献标志码 A