Astrophysical N-body simulations using hierarchical tree data structures

Astrophysical N-body simulations using hierarchical tree data structures
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使用分层树数据结构进行天体物理 N 体模拟

DOI:
10.1109/superc.1992.236647
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发表时间:
1992
期刊:
Proceedings Supercomputing '92
影响因子:
--
通讯作者:
J. Salmon
J. Salmon
中科院分区:
--
文献类型:
--
作者:
Michael S. Warren;J. Salmon

文献摘要

被引文献

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作者报告了最近在Intel Touchstone Delta系统上执行的大型天体物理N-Body模拟。他们回顾了天体物理动机和数值技术,并讨论了将这些模拟并行化所采取的步骤。对于较大的N值,这些方法的伸缩性为O(N Log N),并且还随着处理器数量的增加而线性伸缩。在512处理器系统上,持续67小时的性能在5.1到5.4G/S之间。
The authors report on recent large astrophysical N-body simulations executed on the Intel Touchstone Delta system. They review the astrophysical motivation and the numerical techniques and discuss steps taken to parallelize these simulations. The methods scale as O(N log N), for large values of N, and also scale linearly with the number of processors. The performance sustained for a duration of 67 h, was between 5.1 and 5.4 Gflop/s on a 512-processor system.<<ETX>>