Parareal Algorithms Implemented with IMEX Runge-Kutta Methods

Parareal Algorithms Implemented with IMEX Runge-Kutta Methods
复制标题

使用 IMEX Runge-Kutta 方法实现的准实数算法

DOI:
10.1155/2015/395340
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发表时间:
2015-03
影响因子:
--
通讯作者:
Shu-Lin Wu
Shu-Lin Wu
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhiyong Wang;Shu-Lin Wu

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Parareal算法是一种非常强大的并行计算方法,在过去的几年里受到了许多研究者的关注。本文的目的是研究用IMEX龙格-库塔(RK)方法实现的并行算法的性能。建立了耦合IMEX-RK方法的Parareal算法的稳定性判据,并数值研究了这类RK方法在稳定性方面的优越性。最后,数值例子来说明不同的parareal方法的效率和性能。
Parareal algorithm is a very powerful parallel computation method and has received much interest from many researchers over the past few years. The aim of this paper is to investigate the performance of parareal algorithm implemented with IMEX Runge-Kutta (RK) methods. A stability criterion of the parareal algorithm coupled with IMEX RK methods is established and the advantage (in the sense of stability) of implementing with this kind of RK methods is numerically investigated. Finally, numerical examples are given to illustrate the efficiency and performance of different parareal methods.
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