Adaptive Aggregation-based Domain Decomposition Multigrid for Twisted Mass Fermions
Adaptive Aggregation-based Domain Decomposition Multigrid for Twisted Mass Fermions
复制标题
基于自适应聚合的扭曲质量费米子域分解多重网格
DOI:
10.1103/physrevd.94.114509
复制
发表时间:
2016
影响因子:
5
通讯作者:
M. Rottmann
中科院分区:
文献类型:
--
作者:
C. Alexandrou;S. Bacchio;J. Finkenrath;A. Frommer;K. Kahl;M. Rottmann
The Adaptive Aggregation-based Domain Decomposition Multigrid method (arXiv:1303.1377) is extended for two degenerate flavors of twisted mass fermions. By fine-tuning the parameters we achieve a speed-up of the order of hundred times compared to the conjugate gradient algorithm for the physical value of the pion mass. A thorough analysis of the aggregation parameters is presented, which provides a novel insight into multigrid methods for lattice QCD independently of the fermion discretization.
DOI:
10.1137/130919507
发表时间:
2013-03
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
A. Frommer;K. Kahl;S. Krieg;B. Leder;M. Rottmann
通讯作者:
A. Frommer;K. Kahl;S. Krieg;B. Leder;M. Rottmann
影响因子:
5
作者:
G.S. Bali
通讯作者:
G.S. Bali