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Parallel Algorithms for Symmetric Boundary Element Equations

机译:对称边界元方程的并行算法

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The BEM is of advantage in many applications, in particular the mathematical models become more realistic in the case of necessity of far-field computations and the mesh generation becomes easier to handle. Another advantage is the direct computation of the Cauchy data on the boundary and on the interfaces as well. The non-overlapping domain decomposition (DD) is an important tool for formulating adequate mathematical models as well as for their discretization and their parallel solution. The authors present parallel algorithms for solving large scale Galerkin BE-equations approximating linear potential problems in bounded domains with piecewise homogeneous material properties. Finally, the authors discuss some numerical results obtained by the code FEMOOBEM on various massively parallel machines. The methods presented are of O(h~(-2)) algebraic complexity and of high parallel efficiency.
机译:BEM在许多应用程序中具有优势,特别是在需要进行远场计算的情况下,数学模型变得更加现实,并且网格生成变得更易于处理。另一个优点是可以在边界和界面上直接计算柯西数据。非重叠域分解(DD)是重要的工具,可用于制定适当的数学模型以及离散化和并行求解。作者提出了并行算法,用于求解大规模Galerkin BE方程,该方程近似于分段均质材料属性的有界域中的线性势问题。最后,作者讨论了通过代码FEMOOBEM在各种大规模并行机上获得的一些数值结果。提出的方法具有O(h〜(-2))代数复杂度和高并行效率。

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