Hybrid OpenMP/MPI anisotropic mesh smoothing

被引：13

作者：

Gorman, G. J. ^{[1
]}

Southern, J. ^{[2
]}

Farrell, P. E. ^{[1
]}

Piggott, M. D. ^{[1
]}

Rokos, G. ^{[1
]}

Kelly, P. H. J. ^{[1
]}

机构：

[1] Imperial Coll London, Appl Modelling & Computat Grp, Dept Earth Sci & Engn, London SW7 2AZ, England

[2] Fujitsu Labs Europe, Hayes UB4 8FE, Middx, England

来源：

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE, ICCS 2012 | 2012年 / 9卷

基金：

英国工程与自然科学研究理事会;

关键词：

unstructured mesh; mesh smoothing; ccNUMA; parallel; OpenMP; MPI; JACOBIAN MATRIX; OPTIMIZATION; QUANTITIES; FRAMEWORK; QUALITY; NORM;

D O I：

10.1016/j.procs.2012.04.166

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Mesh smoothing is an important algorithm for the improvement of element quality in unstructured mesh finite element methods. A new optimisation based mesh smoothing algorithm is presented for anisotropic mesh adaptivity. It is shown that this smoothing kernel is very effective at raising the minimum local quality of the mesh. A number of strategies are employed to reduce the algorithm's cost while maintaining its effectiveness in improving overall mesh quality. The method is parallelised using hybrid OpenMP/MPI programming methods, and graph colouring to identify independent sets. Different approaches are explored to achieve good scaling performance within a shared memory compute node.

引用

页码：1513 / 1522

页数：10

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