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A coarse-grained parallel approach for seismic damage simulations of urban areas based on refined models and GPU/CPU cooperative computing

机译：基于精细模型和GPU / CPU协同计算的城市地震损伤模拟的粗粒度并行方法

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摘要

Refined models and nonlinear time-history analysis have been important developments in the field of urban regional seismic damage simulation. However, the application of refined models has been limited because of their high computational cost if they are implemented on traditional central processing unit (CPU) platforms. In recent years, graphics processing unit (CPU) technology has been developed and applied rapidly because of its powerful parallel computing capability and low cost. Hence, a coarse-grained parallel approach for seismic damage simulations of urban areas based on refined models and GPU/CPU cooperative computing is proposed. The buildings are modeled using a multi-story concentrated-mass shear (MCS) model, and their seismic responses are simulated using nonlinear time-history analysis. The benchmark cases demonstrate the performance-to-price ratio of the proposed approach can be 39 times as great as that of a traditional CPU approach. Finally, a seismic damage simulation of a medium-sized urban area is implemented to demonstrate the capacity and advantages of the proposed method.
机译：精细化模型和非线性时程分析是城市区域地震破坏模拟领域的重要发展。但是，如果在传统的中央处理单元（CPU）平台上实现精炼模型，则它们的计算成本很高，因此其应用受到了限制。近年来，由于其强大的并行计算能力和低成本，图形处理单元（CPU）技术已得到迅速发展和应用。因此，提出了一种基于细化模型和GPU / CPU协同计算的粗粒并行城市地震模拟方法。使用多层集中质量剪切（MCS）模型对建筑物进行建模，并使用非线性时程分析来模拟其地震响应。这些基准案例表明，该方法的性能价格比可以是传统CPU方法的39倍。最后，对中型城市地区进行地震破坏模拟，以证明该方法的能力和优点。

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  • 来源
    《Advances in Engineering Software》 |2014年第4期|90-103|共14页
  • 作者

    Xinzheng Lu; Bo Han; Muneo Hori; Chen Xiong; Zhen Xu;

  • 作者单位

    Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering Tsinghua University, Beijing 100084, PR China;

    Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering Tsinghua University, Beijing 100084, PR China;

    Earthquake Research Institute, University of Tokyo, Bunkyo-Ku, Tokyo 113-0032, Japan;

    Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering Tsinghua University, Beijing 100084, PR China;

    Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering Tsinghua University, Beijing 100084, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Urban regional seismic damage simulation; Graphics processing unit; Refined model; Parallel computing; Multi-story concentrated-mass shear model; Hybrid computing;

    机译：城市区域地震破坏模拟;图形处理单元;精致的模型;并行计算多层集中质量剪切模型;混合运算;

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