Improved algorithm for reconstructing singular connection in multi-block CFD applications

被引：0
|
作者：
Wang, Yongxian [1 ,2 ]
Zhang, Lilun [1 ,2 ]
Che, Yonggang [1 ,2 ]
Xu, Chuanfu [1 ]
Liu, Wei [1 ]
Liu, Huayong [3 ]
Wang, Zhenghua [1 ]
机构：
[1] College of Computer, National University of Defense Technology, Changsha, 410073, China
[2] Science and Technology on Parallel and Distributed Processing Laboratory, National University of Defense Technology, Changsha, 410073, China
[3] State Key Laboratory of Aerodynamics, Mianyang, 621000, China
来源：
Transactions of Nanjing University of Aeronautics and Astronautics | 2013年 / 30卷 / SUPPL.1期
关键词：
Computational fluid dynamics - Supercomputers;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An improved algorithm is proposed for the reconstruction of singular connectivity from the available pairwise connections during preprocessing phase. To evaluate the performance of the algorithm, an in-house computational fluid dynamics (CFD) code is used in which high-order finite-difference method for spatial discretization running on the Tianhe-1A supercomputer is employed. Test cases with a varied amount of mesh points are chosen, and the test results indicate that the improved singular connection reconstruction algorithm can achieve a speedup of 2000× at least when compared with the naive search method adopted in the former version of our code. Moreover, the parallel efficiency can benefit from the strategy of local communication based on the algorithm.
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页码：51 / 57
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