计算物理 ›› 1998, Vol. 15 ›› Issue (2): 211-217.

• 论文 • 上一篇    下一篇

量子化学中有限元法的并行计算

陈飞武1, 黎乐民2, 陈志达2   

  1. 1. 中国科学院生物物理所, 蛋白质工程室, 北京 100101;
    2. 北京大学稀土材料化学及应用国家重点实验室, 北京大学化学系 100871
  • 收稿日期:1996-10-15 修回日期:1997-09-05 出版日期:1998-03-25 发布日期:1998-03-25
  • 作者简介:陈飞武,男,32,助研,博士,中科院生物物理所
  • 基金资助:
    本工作得到国家自然科学基金的资助

PARALLEL COMPUTATION OF THE FINITE ELEMENT APPROACH IN QUANTUM CHEMISTRY

Chen Feiwu1, Li Lemin2, Chen Zhida2   

  1. 1. Protein Engineering Group, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101;
    2. State Key Laboratory of Rare Earth Materials Chemistry and Applications, Department of Chemistry, Peking University, Beijing 100871
  • Received:1996-10-15 Revised:1997-09-05 Online:1998-03-25 Published:1998-03-25

摘要: 在有限元方法的框架下,将量子化学中的基组展开方法和普通有限元方法结合起来,提出了一个新方案。在曙光1000并行机上,采用新方案,计算了Li2、LiH、BH分子的基态总能量。新方案在相同计算量下,可获得比普通有限元方法高得多的精度。

关键词: 有限元方法, 量子化学, Slater基函数, 并行计算

Abstract: In the framework of finite element approach, a new calculation scheme is proposed through combining the conventional finite element approach and the basis set expansion method in quantum chemistry. Under the new scheme, total energies in the ground states for diatom molecules Li2, LiH, and BH are calculated on parallel computer DAWN1000. In comparison with the traditional finite element approach,it is found that the more accurate results can been obtained through the new scheme with same computational efforts.

Key words: finite element approach, quantum chemistry, slater basis function, parallel computation

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