Parallel Out-of-Core MOM for analyzing radiation characteristics of antenna mounted on electrically large platform

2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI:10.1109/CSQRWC.2013.6657376

X. F. Xu, J. Li

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引用次数: 1

Abstract

The radiation characteristics calculation of antenna mounted on electrically large platform requires to consume a great deal of physical memory. The problems which can not be calculated due to the insufficient memory can be solved by Out-of-Core solving method, but it takes too longer time because the speed limit of the data reading/writing on the disk. To solve the above problem, parallel Out-of-Core computing method is proposed. In order to use the memory sufficiently and reduce the reading/writing time, block parallel Out-of-Core computing method is also presented. The radiation patterns of a monopole mounted on a metal column and a shipborne antenna model are calculated respectively. The solving time of In-Core solver and Out-of-Core solver with different numbers of blocks and using different numbers of processors are compared respectively. The results indicate that the method in this paper can efficiently solve the radiation problems of antenna mounted on electrically larger platform, the solving time is only 6.3 % more than the In-Core method's, and the calculation precision is not lost.

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电大平台上天线辐射特性分析的并行离芯MOM

安装在电大平台上的天线的辐射特性计算需要消耗大量的物理内存。对于由于内存不足而无法计算的问题，可以采用out - core求解方法来解决，但由于磁盘上数据读写的速度限制，求解时间较长。为了解决上述问题，提出了并行的核外计算方法。为了充分利用内存，减少读写时间，还提出了块并行的核外计算方法。分别计算了金属柱单极子和舰载天线模型的辐射方向图。分别比较了不同块数和使用不同处理器数的核内求解器和核外求解器的求解时间。结果表明，该方法能有效地求解电大平台上天线的辐射问题，求解时间仅比in - core方法多6.3%，且不损失计算精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference

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