A parallel solution scheme for multiphysics evolution problems using OpenPALM
A parallel solution scheme for multiphysics evolution problems using OpenPALM
复制标题
使用 OpenPALM 的多物理场演化问题并行求解方案
DOI：
10.11588/emclpp.2014.01.13758
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
V. Heuveline
中科院分区：
文献类型：
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作者：
M. Wlotzka;V. Heuveline
多物理场模型试图通过结合所有相关的物理方面来准确地表示复杂的现象。因此，多物理场模拟通常需要使用高性能计算资源。作为一个应用实例，我们考虑一个自然对流问题，其中我们耦合的流体动力学模型和温度演化模型。为了利用运营商分裂计划的并行性，我们建议使用OpenPALM耦合器工具耦合个别模型实现。我们用不同数量的MPI进程对耦合模型进行了性能测试，并将其与标准实现进行了比较。我们的研究结果表明，耦合的方法是上级的标准实现方面的并行效率，特别是当使用更多的MPI进程。
Multiphysics models seek to accurately represent complex phenomena by incorporating all relevant physical aspects. Therefore, multiphysics simulations often require the use of high performance computing resources. As an example application, we consider a natural convection problem, where we couple a fluid dynamics model and a temperature evolution model. In order to exploit the parallelism of operator splitting schemes, we propose to use the OpenPALM coupler tool for coupling individual model implementations. We carried out performance tests of the coupled models with a varying number of MPI processes and compared them to a standard implementation. Our results show that the coupling approach is superior over the standard implementation with respect to parallel efficiency, especially when using a higher number of MPI processes.