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首页> 外文期刊>Journal of Hydroinformatics >Performance improvement with parallel numerical model simulations in the field of urban water management
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Performance improvement with parallel numerical model simulations in the field of urban water management

机译：在城市水管理领域中通过并行数值模型仿真来提高性能

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摘要

Numerical models are used to enhance the understanding of the behavior of real world systems. With increasing complexity of numerical models and their applications, there is a need of more computational power. State of the art processors contain many cores on one single chip. As such, new programming techniques are required if all these cores are to be utilized during model simulation runs. This manuscript reviews the runtime and speedup behavior of parallel model analysis software (e.g. Calimero and Achilles) applied to simulation tools for urban water management (e.g. CityDrain3, EPANET2, SWMM5, par-SWMM). The potential of using a parallel programming environment for 'coordinating' tasks of multiple runs of commonly used modeling software is analyzed. This is especially interesting as the modeling software itself can be implanted sequentially or parallel. Performance tests are performed on a set of real-world case studies. Additionally, a benchmark set of 2,280 virtual case studies is used to investigate performance improvement in relation to the size of the system. It was found that speedup depends on the system size and the time spent in critical code sections with increasing number of used cores. Applying parallelism only at the level of the model analysis software performs best.
机译：数值模型用于增强对现实世界系统行为的理解。随着数值模型及其应用的复杂性增加，需要更多的计算能力。最先进的处理器在一个芯片上包含许多内核。这样，如果要在模型仿真运行期间使用所有这些核心，则需要新的编程技术。该手稿回顾了应用于城市水管理模拟工具（例如CityDrain3，EPANET2，SWMM5，par-SWMM）的并行模型分析软件（例如Calimero和Achilles）的运行时间和加速行为。分析了使用并行编程环境来“协调”多次运行的常用建模软件的任务的潜力。这特别有趣，因为建模软件本身可以顺序或并行植入。性能测试是在一组实际案例研究中执行的。此外，使用2280个虚拟案例研究的基准测试集来调查与系统大小相关的性能改进。人们发现，随着内核数量的增加，提速取决于系统大小和关键代码部分所花费的时间。仅在模型分析软件级别上应用并行性才能达到最佳效果。

著录项

  • 来源
    《Journal of Hydroinformatics》 |2014年第2期|477-486|共10页
  • 作者

    Michael Mair; Robert Sitzenfrei; Manfred Kleidorfer; Wolfgang Rauch;

  • 作者单位

    Unit of Environmental Engineering,Institute of Infrastructure,University of Innsbruck,Technikerstr. 13,6020 Innsbruck,Austria;

    Unit of Environmental Engineering,Institute of Infrastructure,University of Innsbruck,Technikerstr. 13,6020 Innsbruck,Austria;

    Unit of Environmental Engineering,Institute of Infrastructure,University of Innsbruck,Technikerstr. 13,6020 Innsbruck,Austria;

    Unit of Environmental Engineering,Institute of Infrastructure,University of Innsbruck,Technikerstr. 13,6020 Innsbruck,Austria;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Achilles; Calimero; nested parallelism; runtime; speedup; virtual test set application;

    机译：阿喀琉斯;卡利梅罗嵌套并行运行;加速;虚拟测试仪应用;

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