等离子体在并行超级计算机上的辐射磁流体动力学

[Proceedings 1992] The Fourth Symposium on the Frontiers of Massively Parallel Computation Pub Date : 1992-10-19 DOI:10.1109/FMPC.1992.234915

O. Yasar, G. Moses, T. Tautges

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引用次数: 1

摘要

提出了一种在辐射-磁流体动力学(R-MHD)框架下模拟等离子体的并行计算模型。辐射场的解通常在R-MHD计算中占主导地位。采用确定性S/sub - N/离散坐标法求解辐射场强的线性玻尔兹曼方程。作者选择一种能量域分解方法，在Intel iPSC/860并行处理器上实现了S/sub / N/方法，并取得了较好的速度提升。随着处理器数量的增加，加速几乎呈线性增长，在16个处理器上达到14。比较单处理器CRAY Y-MP和16处理器iPSC/860实现之间的时间测量结果，并行性明显提高3.7倍。

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Radiation-magnetohydrodynamics of plasmas on parallel supercomputers

Presents a parallel computational model to simulate plasmas in the radiation-magnetohydrodynamics (R-MHD) framework. The solution of the radiation field usually dominates the R-MHD computation. The authors solve the linear Boltzmann equation for the radiation field intensity, using the deterministic S/sub N/ discrete ordinates method. Choosing an energy-domain decomposition the authors have implemented the S/sub N/ method on a parallel processor, the Intel iPSC/860, and the speedups are very favorable. Increasing almost linearly with the number of processors, the speedup reaches 14 on 16 processors. A comparison of timing measurements between a single processor CRAY Y-MP and a 16 processor iPSC/860 implementation strongly favors parallelism by a factor of 3.7.<>

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[Proceedings 1992] The Fourth Symposium on the Frontiers of Massively Parallel Computation

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