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arXiv 1702.04045physics.comp-phcs.NAmath.NA
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一种基于并行轨道更新的平面波基组方法用于电子结构计算

A parallel orbital-updating based plane-wave basis method for electronic structure calculations

Academy of Mathematics and Systems Science, Chinese Academy of Sciences(中国科学院数学与系统科学研究院);University of Chinese Academy of Sciences(中国科学院大学);Scuola Internazionale Superiore di Studi Avanzati (SISSA)(国际高等研究院);CNR-IOM DEMOCRITOS Simulation Centre(国家研究委员会-材料研究所DEMOCRITOS模拟中心);Fudan University(复旦大学);Université catholique de Louvain(天主教鲁汶大学)

Yan Pan, Xiaoying Dai, Stefano de Gironcoli, Xin-Gao Gong, Gian-Marco Rignanese, Aihui Zhou

AI总结:

本文提出一种基于并行轨道更新的平面波基组方法,用于求解电子结构计算中的本征值问题,并改进了两种新的并行轨道更新方法,提高了大规模计算的可靠性和效率。

摘要:

受近期提出的实空间方法中并行轨道更新方法的启发,我们提出了一种基于并行轨道更新的平面波基组方法用于电子结构计算,以求解相应的本征值问题。此外,我们提出了两种新的改进的并行轨道更新方法。与传统平面波方法相比,我们的方法允许两级并行化,这在大规模并行化中尤为有趣。数值实验表明,这些新方法在现代超级计算机上的大规模计算中更加可靠和高效。

英文摘要:

Motivated by the recently proposed parallel orbital-updating approach in real space method, we propose a parallel orbital-updating based plane-wave basis method for electronic structure calculations, for solving the corresponding eigenvalue problems. In addition, we propose two new modified parallel orbital-updating methods. Compared to the traditional plane-wave methods, our methods allow for two-level parallelization, which is particularly interesting for large scale parallelization. Numerical experiments show that these new methods are more reliable and efficient for large scale calculations on modern supercomputers

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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