Improving the Parallel Performance of Overlapping Schwarz Methods by Using a Smaller Energy Minimizing Coarse Space
Improving the Parallel Performance of Overlapping Schwarz Methods by Using a Smaller Energy Minimizing Coarse Space
复制标题
使用较小的能量最小化粗空间提高重叠 Schwarz 方法的并行性能
DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
O. Widlund
中科院分区:
文献类型:
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作者:
Alexander Heinlein;A. Klawonn;O. Rheinbach;O. Widlund
We consider a recent overlapping Schwarz method with an energy-minimizing coarse space of reduced size. In numerical experiments for up to 64,000 cores, we show that the parallel efficiency and the total time to solution is improved significantly, compared to our previous overlapping Schwarz method using an alternative energy-minimizing coarse space.
DOI:
10.1137/16m1062843
发表时间:
2016
期刊:
SIAM J. Sci. Comput.
影响因子:
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作者:
A. Heinlein;A. Klawonn;O. Rheinbach
通讯作者:
O. Rheinbach