Title
Domain decomposition approach for parallel improvement of tetrahedral meshes.
Abstract
Presently, a tetrahedral mesher based on the Delaunay triangulation approach may outperform a tetrahedral improver based on local smoothing and flip operations by nearly one order in terms of computing time. Parallelization is a feasible way to speed up the improver and enable it to handle large-scale meshes. In this study, a novel domain decomposition approach is proposed for parallel mesh improvement. It analyses the dual graph of the input mesh to build an inter-domain boundary that avoids small dihedral angles and poorly shaped faces. Consequently, the parallel improver can fit this boundary without compromising the mesh quality. Meanwhile, the new method does not involve any inter-processor communications and therefore runs very efficiently. A parallel pre-processing pipeline that combines the proposed improver and existing parallel surface and volume meshers can prepare a quality mesh containing hundreds of millions of elements in minutes. Experiments are presented to show that the developed system is robust and applicable to models of a complication level experienced in industry.
Year
DOI
Venue
2017
10.1016/j.jpdc.2017.04.008
Journal of Parallel and Distributed Computing
Keywords
Field
DocType
Parallel algorithms,Mesh generation,Quality improvement,Domain decomposition,Dual graph
Polygon mesh,Parallel algorithm,Computer science,Parallel computing,Smoothing,Tetrahedron,Domain decomposition methods,Mesh generation,Speedup,Delaunay triangulation
Journal
Volume
ISSN
Citations 
107
0743-7315
1
PageRank 
References 
Authors
0.40
10
6
Name
Order
Citations
PageRank
CHEN JianJun1226.74
Dawei Zhao219320.38
Yao Zheng327629.32
Yan Xu410.40
Chen-Feng Li514511.63
Jianjing Zheng641.50