Solving Problems With Over One Billion Unknowns by the MLFMA

Solving Problems With Over One Billion Unknowns by the MLFMA
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通过 MLFMA 解决超过 10 亿未知数的问题

DOI:
10.1109/tap.2012.2189746
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发表时间:
2012-03
影响因子:
5.7
通讯作者:
Sheng, Xin-Qing
Sheng, Xin-Qing
中科院分区:
计算机科学2区
文献类型:
--
作者:
Pan, Xiao-Min;Pi, Wei-Chao;Yang, Ming-Lin;Peng, Zhen;Sheng, Xin-Qing

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利用OpenMP进一步加速纯MPI并行MLFMA,提出了一种高效灵活的并行多层快速多极子算法(MPI-OpenMP-MLFMA)。与以往的MPI并行方案相比,MPI-OpenMP-MLFMA的负载均衡性和可扩展性都有了很大的提高。通过计算两个超大型目标的散射,验证了MPI-OpenMP-MLFMA的计算能力:一个直径为1200个波长的球体,由1,063,706,700个未知数建模;一个最大维为1600个波长的飞机模型,涉及288,151,344个未知数。
Using OpenMP to further accelerate the pure MPI parallel MLFMA, an efficient and flexible parallel multilevel fast multipole algorithm (MPI-OpenMP-MLFMA) is proposed. Compared with previous MPI parallel schemes, the MPI-OpenMP-MLFMA improves the load-balance and scalability greatly. The computational capability of the proposed MPI-OpenMP-MLFMA is demonstrated by computing scattering from two extremely large targets: a sphere with a diameter of 1200 wavelengths, modeled by 1,063,706,700 unknowns, and an airplane model with the largest dimension of 1600 wavelengths, involving 288,151,344 unknowns.
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