多自由度结构静风响应的GPU并行计算  

GPU parallel computing for static wind-induced response of multi-degrees-of-freedom structures

作　　者：杨智诚[1] 饶瑞[1] 

机构地区：[1]广州大学广东省结构安全与健康监测工程技术研究开发中心,广州510006

出　　处：《计算机辅助工程》2015年第4期82-86,94,共6页Computer Aided Engineering

基　　金：广州市属高校"羊城学者"项目(12A004S);高等学校博士点基金(博导类)(20124410110005);珠江科技新星专项(2012J2200093)

摘　　要：根据某大型双层柱面网壳风致静力响应计算的有限元模型,建立基于GPU的MATLAB快速并行计算平台,实现CUDA框架下多自由度结构风致静力位移响应的快速求解.数值计算表明,与传统的CPU串行计算相比,通过GPU实现的大型矩阵的求逆、乘法、除法等运算速度得到大幅提高,位移计算获得23倍的最大加速比;结果误差对比分析也表明基于GPU的计算结果能够满足工程精度要求.According to the finite element model which is built for the calculation of static wind-induced response of a large-scale double-layer cylindrical reticulated shell, a fast parallel computing platform is built in MATLAB by GPU, and the fast solution for the wind-induced static displacement responses is implemented with the frame of CUDA. The numerical calculation indicates that, compared with the traditional serial computing of CPU, the calculation speed of the operation of inversion, multiplication, division of large matrix is greatly improved, and the maximum speed-up ratio of displacement calculation is improved by 23 times. The comparison and analysis on the errors show that the results based on GPU calculation can meet the accuracy requirements of engineering projects.

关 键 词：双层网壳 风致静力响应 节点位移 GPU MATLAB CUDA 

分 类 号：TU399[建筑科学—结构工程] TU311.3