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Out-of-Core Solver Based DDM for Solving Large Airborne Array

机译:基于核外求解器的DDM解决大型机载阵列

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摘要

In this paper, we present a new methodology for an overlapping domain decomposition by using higher-order MoM and out-of-core solver (HO-OC-DDM) for analyzing large electromagnetic (EM) problems. This paper proposes two main novelties. First, the required number of meshes is decreased with the application of new higher-order basis function in the discretization of integral equation (IE). As a consequence, the number of unknowns for large EM problems can be reduced. Second, a parallel out-of-core solver is presented in this paper, which can accelerate the matrix filling and solving process without loss of accuracy. The out-of-core solver breaks the limitation of computer RAM and can be efficiently implemented in domain decomposition method (DDM).
机译:在本文中,我们提出了一种通过使用高阶MoM和核外求解器(HO-OC-DDM)来分析大型电磁(EM)问题的重叠域分解的新方法。本文提出了两个主要的新颖性。首先,通过在积分方程(IE)的离散化中应用新的高阶基函数,减少了所需的网格数量。结果,可以减少大型EM问题的未知数。其次,本文提出了一种并行核外求解器,它可以加速矩阵填充和求解过程,而不会降低精度。核外求解器突破了计算机RAM的限制,可以在域分解方法(DDM)中有效地实现。

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