数据与计算发展前沿2025，Vol.7Issue(5)：3-15,13.DOI:10.11871/jfdc.issn.2096-742X.2025.05.001
三维连续-非连续单元法分布式计算策略
Distributed Computing Strategy for Three-Dimensional Continuous-Discontinuous Element Method
摘要
Abstract
[Objective]Establishing a distributed computing paradigm for large-scale complex geotechni-cal engineering models is of significant importance.[Methods]The ParMETIS graph partition-ing algorithm is used to generate a grid node domain decomposition scheme based on the topo-logical relationships of the grid node graph.By introducing ghost elements and ghost contacts,a multi-subdomain data partitioning for continuous-discontinuous computational tasks and load balancing of the computing cluster is achieved based on the grid node partitioning results.Us-ing MPI non-blocking communication and memory-mapped sharing technology,efficient com-munication of the ghost node information is realized.Finally,large-scale three-dimensional con-tinuous-discontinuous problems are solved through distributed computing on the computing cluster.[Results]Un-der conditions where the load is fixed either on a single node or across multiple nodes,the proposed distributed computing strategy achieves weak scalability for the CDEM,overcoming the limitations of a single machine with millions of elements,and successfully meeting the complex computational demands of tens of millions of tetrahe-dral elements.[Conclusions]This distributed computing strategy effectively enhances computing capability and scalability,providing a feasible solution for the application of the continuous-discontinuous element method in large-scale geotechnical engineering problems.关键词
连续-非连续单元法(CDEM)/分布式计算/图划分/负载均衡Key words
continuous-discontinuous element method(CDEM)/distributed computing/graph partitioning/load balancing引用本文复制引用
黄俊光,冯春,张一鸣..三维连续-非连续单元法分布式计算策略[J].数据与计算发展前沿,2025,7(5):3-15,13.基金项目
光合基金A类(202302017772)"基于国产加速卡的连续-非连续单元法并行加速" （202302017772）
国家自然科学基金(52178324)"三维岩石特征-宏观多尺度建模与变形-破坏分析研究" （52178324）
