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arXiv 2201.01100cond-mat.softphysics.comp-ph
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硬球的有效事件驱动模拟

Efficient event-driven simulations of hard spheres

Frank Smallenburg

摘要:

硬球可以说是软物质物理学中最基本的模型系统之一,因此是模拟研究的一个共同主题。事件驱动模拟方法为研究硬球在各种不同条件下的相行为和动力学提供了一种有效的方法。在这里,我们研究的影响,加快事件驱动的分子动力学的硬球的几种优化策略,并提出了一个轻量级的模拟代码,优于现有的模拟代码在很大范围内的系统大小和包装分数。所提出的模拟速度的差异,通常是五到十倍,大大节省了CPU时间和能耗,并且可能是研究缓慢过程(如晶体成核和玻璃态动力学)的关键因素。

英文摘要:

Hard spheres are arguably one of the most fundamental model systems in soft matter physics, and hence a common topic of simulation studies. Event-driven simulation methods provide an efficient method for studying the phase behavior and dynamics of hard spheres under a wide range of different conditions. Here, we examine the impact of several optimization strategies for speeding up event-driven molecular dynamics of hard spheres, and present a light-weight simulation code that outperforms existing simulation codes over a large range of system sizes and packing fractions. The presented differences in simulation speed, typically a factor of five to ten, save significantly on both CPU time and energy consumption, and may be a crucial factor for studying slow processes such as crystal nucleation and glassy dynamics.

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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