CPU+GPU并行计算技术在复杂结构非线性分析中的应用  

Application of CPU + GPU parallel computing technology in nonlinear analysis of complex structures

作　　者：乔保娟[1,2] 李志山 曹胜涛 刘春明[1,2] 侯晓武[1,2] 杨志勇[1,2] 

机构地区：[1]广州建研数力建筑科技有限公司,广州510170 [2]建研科技股份有限公司,北京100013

出　　处：《建筑结构》2015年第23期86-90,共5页Building Structure

摘　　要：探讨了PKPM-SAUSAGE软件所采用的CPU+GPU并行计算技术,结合钢材和混凝土本构模型、纤维梁单元与分层壳单元、瑞利阻尼和振型阻尼模型及显式分析方法,详述了其并行计算实现要点,并对并行计算效率进行了测试。测试表明,CPU+GPU并行计算技术的应用极大地提高了复杂结构非线性分析的计算效率。以某实际钢筋混凝土框架-核心筒结构为例,采用PKPM-SAUSAGE软件与ABAQUS软件对其进行罕遇地震作用下的动力弹塑性时程分析,验证了PKPM-SAUSAGE软件CPU+GPU并行计算的正确性与高效性。The CPU ＋ GPU parallel computing technology adopted by PKPM-SAUSAGE software was discussed. The implementation details of parallel computing were introduced combined with the steel and concrete constitutive models,fiber beam and layered shell elements,Rayleigh damping and modal damping models,and the explicit integration analysis method. The efficiency of parallel computing was tested as well. The test shows that the application of CPU ＋ GPU parallel computing technology greatly improves the computing efficiency of nonlinear analysis of complex structures. A practical reinforced concrete frame-corewall structure was taken as an example to carry out dynamic elastic-plastic time-history analysis under the rare earthquake by PKPM-SAUSAGE software and ABAQUS software. The results verify the correctness and high-efficiency of CPU ＋ GPU parallel computing technology of PKPM-SAUSAGE software.

关 键 词：CPU+GPU并行计算 弹塑性时程分析 PKPM-SAUSAGE软件 ABAQUS软件 

分 类 号：TU311[建筑科学—结构工程]