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Analyzing Performance of Selected NESAP Applications on the Cori HPC System

机译:在Cori HPC系统上分析所选NESAP应用程序的性能

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摘要

NERSC has partnered with over 20 representative application developer teams to evaluate and optimize their workloads on the Intel® Xeon Phi™Knights Landing processor. In this paper, we present a summary of this two year effort and will present the lessons we learned in that process. We analyze the overall performance improvements of these codes quantifying impacts of both Xeon Phi™architectural features as well as code optimization on application performance. We show that the architectural advantage, i.e. the average speedup of optimized code on KNL vs. optimized code on Haswell is about 1.1 x. The average speedup obtained through application optimization, i.e. comparing optimized vs. original codes on KNL, is about 5x.
机译:NERSC已与20多个代表性应用程序开发人员团队合作,以评估和优化他们在英特尔®至强融核™骑士登陆处理器上的工作负载。在本文中,我们将对这两年的工作进行总结,并将介绍在此过程中我们所汲取的教训。我们分析了这些代码的整体性能改进,从而量化了Xeon Phi™体系结构功能以及代码优化对应用程序性能的影响。我们证明了架构上的优势,即KNL上的优化代码与Haswell上的优化代码的平均速度约为1.1倍。通过应用程序优化(即在KNL上比较优化代码与原始代码进行比较)获得的平均速度约为5倍。

著录项

  • 来源
    《High performance computing》|2017年|334-347|共14页
  • 会议地点 Frankfurt(DE)
  • 作者单位

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    Computational Research Division, Lawrence Berkeley National Lab,Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    Computational Research Division, Lawrence Berkeley National Lab,Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

    National Energy Research Scientific Computing Center, Berkeley, CA, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
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