• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2011, Vol. 33 ›› Issue (3): 136-140.doi: 10.3969/j.issn.1007130X.2011.

• 论文 • 上一篇    下一篇

基于光路追踪法的激光能量沉积并行计算

吕信,莫则尧   

  1. (北京应用物理与计算数学研究所,北京 100088)
  • 收稿日期:2010-03-11 修回日期:2010-05-29 出版日期:2011-03-25 发布日期:2011-03-25
  • 作者简介:吕信(1978),男,山西河曲人,助理研究员,研究方向为数值模拟算法及并行计算。 莫则尧(1971),男,湖南桃江人,博士,研究员,博士生导师,研究方向为并行算法设计与分析。

Parallelization of Laser Energy Deposition Based on the RayTracing Algorithm

LvXin,MO Zeyao   

  1. (Institute of Applied Physics and Computational Mathematics,Beijing 100088,China)
  • Received:2010-03-11 Revised:2010-05-29 Online:2011-03-25 Published:2011-03-25

摘要:

在激光驱动惯性约束聚变的数值模拟中,通常使用光路追踪法来计算激光能量沉积。为了适应大规模、高效率的数值模拟需要,本文提出了分组流水线的光路追踪并行策略,能够充分提高大量光线在区域分解网格下的并行性。

关键词: 激光能量沉积, 光路追踪法, 并行算法

Abstract:

In order to simulate the energy deposition in the inertial confinement fusion driven by laser, a geometric optics approximation called the raytracing algorithm is used in general. Because of the requirements of largescale and efficient simulations, the parallelization of the raytracing algorithm is discussed. Raytracing computation is effectively dealt with by a grouppipeline strategy which can significantly improve the parallel performance with the existing decomposition of the domain.

Key words: laser energy deposition;raytracing algorithm;parallel algorithm