计算物理 ›› 2017, Vol. 34 ›› Issue (3): 320-326.

• 研究论文 • 上一篇    下一篇

LARED集成程序辐射输运模拟的性能优化

李双贵, 杭旭登, 杨容, 宋鹏, 翟传磊, 齐进   

  1. 北京应用物理与计算数学研究所, 北京 100094
  • 收稿日期:2016-03-29 修回日期:2016-06-21 出版日期:2017-05-25 发布日期:2017-05-25
  • 通讯作者: 杭旭登,E-mail:hang_xudeng@iapcm.ac.cn
  • 作者简介:李双贵(1976-),女,湖南衡东,博士,副研究员,从事辐射输运计算方法及数值模拟研究,E-mail:lishg@iapcm.ac.cn
  • 基金资助:
    国家自然科学基金(91130002,11401033,11601033)及中物院科学技术发展基金(2014A0202009,2015B0202033,2015B0202034)资助项目

Performance Optimization of LARED-Integration Code in Radiative Transfer Calculations

LI Shuanggui, HANG Xudeng, YANG Rong, SONG Peng, ZHAI Chuanlei, QI Jin   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • Received:2016-03-29 Revised:2016-06-21 Online:2017-05-25 Published:2017-05-25

摘要: 分析定位高置信度辐射传输数值模拟效率瓶颈,针对物理模型和数值离散格式的特点,优化求解算法和程序设计,改进激光聚变二维总体LARED集成程序,提高输运建模模拟黑腔靶实验模型的计算效率:在相同的并行计算条件下,辐射输运方程离散求解计算效率提高2倍以上,全过程整体模拟计算时间减半.

关键词: 性能优化, LARED集成程序, 多群辐射输运计算, 子网格平衡格式, 激光聚变

Abstract: Take use of characteristics of inertial confinement fusion(ICF) models and associated numerical discrete schemes, we proposed multiple techniques for promoting computational efficiency of two-dimensional radiation-hydrodynamic code LARED-integration. Numerical results show that with unchanged parallel resources it is two times faster in downstream spatial sweeping of solving transport equations. Half of total running time is saved for integrated simulation of laser fusion experimental hohlraums.

Key words: performance optimization, LARED-integration code, multi-group radiative transfer calculation, subcell balance method, laser fusion

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