基于CPU-GPU异构平台的高层结构地震响应分析方法研究

发布时间：2018-04-29 04:29

本文选题：GPU + 异构平台　；参考：《振动与冲击》2014年13期

【摘要】：为了解决传统的串行有限元分析方法计算耗时多精度低的问题,基于GPU并行计算能力在CUDA架构下建立了一套兼顾精度和效率的高层结构有限元分析的CPU-CPU的异构平台。基于CPU-GPU异构平台研究了高层结构地震响应算法,将整个时间步积分在GPU中计算完成,每一时间步下利用基于GPU的预处理共轭梯度迭代法求解线性方程组获得该时刻的位移,最终实现了基于GPU的Newmark-β法。通过算例验证了本文所提方法的高精度、高效率。
[Abstract]:In order to solve the problem that the traditional serial finite element analysis method has low computation time and low precision, a heterogeneous platform of CPU-CPU based on GPU parallel computing ability is established under the CUDA architecture, which takes into account the accuracy and efficiency of finite element analysis of high-rise structures. Based on CPU-GPU heterogeneous platform, the seismic response algorithm of tall structures is studied. The integral of the whole time step is calculated in GPU, and the displacement of linear equations is obtained by using the preprocessing conjugate gradient iteration method based on GPU in each time step. Finally, the Newmark- 尾 method based on GPU is realized. An example is given to verify the high accuracy and high efficiency of the proposed method.
【作者单位】：哈尔滨工业大学深圳研究生院;
【基金】：国家自然科学基金重大国际(中美)合作研究项目(51261120374);国家自然科学基金面上项目(51278155);国家自然科学基金青年基金项目(51008048)
【分类号】：TU973.31

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