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
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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
O. Widlund
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文献类型:
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作者:
Alexander Heinlein;A. Klawonn;O. Rheinbach;O. Widlund

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我们考虑最近的重叠施瓦茨方法与能量最小化的粗糙空间的大小减少。在多达64,000个核心的数值实验中,我们表明,并行效率和解决方案的总时间显着提高,相比我们以前的重叠施瓦茨方法使用一种替代的能量最小化粗糙空间。
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.
基于Trilinos的能量最小化粗空间两级重叠Schwarz方法的并行实现
DOI: 10.1137/16m1062843
发表时间: 2016
期刊: SIAM J. Sci. Comput.
影响因子: --
作者:
A. Heinlein;A. Klawonn;O. Rheinbach
通讯作者: O. Rheinbach