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arXiv 0911.3584cond-mat.mtrl-sci
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用DFT计算数百万个原子:线性标度显示其潜力

Calculations on millions of atoms with DFT: Linear scaling shows its potential

D. R. Bowler, T. Miyazaki

摘要:

概述了Conquest线性标度密度泛函理论(DFT)代码,特别侧重于现代高性能计算(HPC)平台上的标度行为。我们证明,基本上完美的线性缩放和弱并行缩放(每个处理器核心固定原子)可以实现,并且现在可以在数百万个原子上进行DFT计算。

英文摘要:

An overview of the Conquest linear scaling density functional theory (DFT) code is given, focussing particularly on the scaling behaviour on modern high- performance computing (HPC) platforms. We demonstrate that essentially perfect linear scaling and weak parallel scaling (with fixed atoms per processor core) can be achieved, and that DFT calculations on millions of atoms are now possible.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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