A comparison of element agglomeration algorithms for unstructured geometric multigrid
A comparison of element agglomeration algorithms for unstructured geometric multigrid
复制标题
非结构化几何多重网格的元素聚集算法比较
DOI:
10.1016/j.cam.2020.113379
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发表时间:
2021
影响因子:
2.4
通讯作者:
Dargaville S
中科院分区:
文献类型:
--
作者:
Dargaville S
This paper compares the performance of seven different element agglomeration algorithms on unstructured triangular/tetrahedral meshes when used as part of a geometric multigrid. Five of these algorithms come from the literature on AMGe multigrid and mesh partitioning methods. The resulting multigrid schemes are tested matrix-free on two problems in 2D and 3D taken from radiation transport applications; one of which is in the diffusion limit. In two dimensions all coarsening algorithms result in multigrid methods which perform similarly, but in three dimensions aggressive element agglomeration performed by METIS produces the shortest runtimes and multigrid setup times.
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DOI:
10.1137/0916038
发表时间:
1995
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
T. Manteuffel;S. McCormick;J. Morel;S. Oliveira;G. Yang
通讯作者:
G. Yang
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
H. Nishikawa;B. Diskin;James L. Thomas;D. Hammond
通讯作者:
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影响因子:
3.1
作者:
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通讯作者:
B. Southworth
影响因子:
2.7
作者:
S. Oliveira;Yuanhua Deng
通讯作者:
S. Oliveira;Yuanhua Deng
DOI:
10.1137/040610350
发表时间:
2005-12
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
M. Wabro
通讯作者:
M. Wabro