Parallel Multiphysics Simulations Using OpenPALM with Application to Hydro-Biogeochemistry Coupling
Parallel Multiphysics Simulations Using OpenPALM with Application to Hydro-Biogeochemistry Coupling
复制标题
使用 OpenPALM 进行并行多物理场仿真并应用于水生生物地球化学耦合
DOI：
10.1007/978-3-319-67168-0_22
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Wlotzka
中科院分区：
文献类型：
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作者：
M. Wlotzka
多物理场系统由多个组件组成，这些组件受其自身的演化或平衡原理控制。例如，我们考虑包含水文模型和生物地球化学模型的农业土地利用场景。我们使用 OpenPALM 工具来实现耦合方案，其中模型使用单独的并行化同时运行。尽管这两个模型需要非常不同的计算量来计算一个时间步，但我们通过为每个模型分配适当的计算资源来实现平衡。我们评估 3D 场景中耦合应用程序的并行性能。与常见的耦合方法相比，我们的并发运算符拆分方案显示出卓越的效率。
Multiphysics systems consist of more than one component governed by its own principle for evolution or equilibrium. As an example, we consider an agricultural land use scenario comprising a hydrology model and a biogeochemistry model. We employ the OpenPALM tool to realize a coupling scheme where the models run concurrently using an individual parallelization. Although the two models demand for very different computational effort to compute one time step, we achieve a balance by allocating appropriate computational resources for each of them. We assess the parallel performance of the coupled application in a 3D scenario. Our concurrent operator splitting scheme shows superior efficiency compared to common coupling approaches.