###
DOI:
Journal of Software:2010.21(zk):263-269

三维位错动力学并行算法与程序研制
刘旭,曹小林,张广财,沈卫超,吴国清
(北京应用物理与计算数学研究所,北京 100094)
Parallel Algorithm and Software of Three-Dimensional Dislocation Dynamics
LIU Xu,CAO Xiao-Lin,ZHANG Guang-Cai,SHEN Wei-Chao,WU Guo-Qing
(Institute of Applied Physics and Computational Mathematics, Beijing 100094, China)
Abstract
Chart / table
Reference
Similar Articles
Article :Browse 2478   Download 2980
Received:June 15, 2010    Revised:December 10, 2010
> 中文摘要: 为研究极端条件下金属材料的性质,在JASMIN 框架上研制了三维并行位错动力学程序PDD3D. 它集成了离散位错动力学模拟的物理方案和数值算法.通过设计实现高效的分布式数据结构、可扩展的快速多极子解法器以及基于影像区的拓扑操作通信方式,该程序具有较高的性能和较好的可扩展性.1024 个处理器上,对包含3 千万条位错线的物理模型的模拟结果显示,PDD3D 程序获得了81%的并行效率.
Abstract:To study the properties of metal under extreme conditions, a parallel program for 3-dimensional dislocation dynamics (PDD3D) is developed based on JASMIN. By integrating effective distributed data structures, a scalable fast multi-pole method solver and a novel communication scheme based on ghost, PDD3D achieves good parallel scalability. In a simulation of a model containing 30 million dislocation segments, the parallel efficiency of PDD3D of 1024 CPUs relative to 128 CPUs is 81%.
文章编号:     中图分类号:    文献标志码:
基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant No.2010AA012300 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2011CB309702 (国家重点基础研究发展规划(973)); the National Natural Science Foundation of China under Grant No.61033009 (国家自然科学基金) Supported by the National High-Tech Research and Development Plan of China under Grant No.2010AA012300 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2011CB309702 (国家重点基础研究发展规划(973)); the National Natural Science Foundation of China under Grant No.61033009 (国家自然科学基金)
Foundation items:
Reference text:

刘旭,曹小林,张广财,沈卫超,吴国清.三维位错动力学并行算法与程序研制.软件学报,2010,21(zk):263-269

LIU Xu,CAO Xiao-Lin,ZHANG Guang-Cai,SHEN Wei-Chao,WU Guo-Qing.Parallel Algorithm and Software of Three-Dimensional Dislocation Dynamics.Journal of Software,2010,21(zk):263-269