MPI环境下并行程序准确性验证及效率分析

基金项目: 国家自然科学基金重点项目(50336050)

Accuracy verification and efficiency analysis of parallel program based on MPI

1.
Graduate University of Chinese Academy of Science, Beijing 100080, China
2.
Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing 100080, China

摘要: 把已有的串行数值模拟程序改编成消息传递接口(MPI)下并行环境的并行数值模拟程序,模拟了基于NASA-TP1680单级透平的4种不同组合的流场,验证了并行程序的有效性和较好的并行效率.同时,分析了影响并行效率的主要因素.
- 航空、航天推进系统 /
- 消息传递接口(MPI) /
- 并行程序 /
- 并行效率 /
- 数值模拟
Abstract: An existing serial computational fluid dynamics(CFD) program was modified to a parallel simulation program based upon message passing interface(MPI).Four flow fields of different combinations for NASA-TP₁₆₈₀ single-stage turbine were simulated to validate the accuracy and parallel efficiency of the parallel program.The major influential factors to the parallel efficiency were also analyzed.
- aerospace propulsion system /
- message passing interface(MPI) /
- parallel program /
- parallel efficiency /
- numerical simulation

[1]	Hohn W,Gombert R,Kraus A.Unsteady aerodynamical blade row interaction in a new multistage research turbine Part 2:Numerical investigation[R].ASME Paper 2001-GT-0307.
[2]	Ruprecht A,Bauer C,Gentner C,et al.Parallel computation of stator-rotor interaction in an axial turbine[R].ASME PVP Conference,CFD Symposium,1999.
[3]	林智荣,袁新.并行计算用于叶轮机械流场特性分析[J].工程热物理学报,2002,23(6):695-698.LIN Zhirong,YUAN Xin.Parallel computation of three-dimensional flow field within turbomachinery[J].Journal of Engineering Thermophysics,2002,23(6):695-698.
[4]	赵晓路.使用流道反算延伸的多叶片排并行计算[J].工程热物理学报,2000,21(5):559-562.ZHAO Xiaolu.A novel extension approach of blade computational domain for the multistage parallel calculation[J].Journal of Engineering Thermophysics,2000,21(5):559-562.
[5]	Snir M,Otto S,Huss-Lederman S.MPI:the complete re-ference[M].Cambridge,Massachusetts London,England:The MIT Press,1996.
[6]	刘建军.用多块多网格方法数值模拟三维粘性流动[J].工程热物理学报,2002,23(1):4648.LIU Jianjun.Numerical simulation of 3D viscous flow using a multiblock multigrid method[J].Journal of Engineering Thermophysics,2002,23(1):46-48.
[7]	Moffit T P,Szanca E M,Whitney W J.Design and cold air test of single stage uncooled core turbine with high work output[R].NASA TP-1680,June,1980.