并行算法发明以来，首先迎来的是网格计算，网格计算是借助空闲的桌面计算机资源进行并行计算。
After parallel algorithms came grid computing, which ran parallel computations on idle desktops.
为改善计算效率，提出了一种局部口面网格优化算法对射线追踪法进行改进。
A new technique named local aperture grid optimization arithmetic was presented to improve the efficiency of the classical method.
数值试验的结果以及并行计算的加速比、效率的统计，进一步验证了网格并行生成方法以及并行计算算法的有效性。
The results of numerical experiments, the statistics of speedup ratio and parallel efficiency all show the success of parallel unstructured grid generation method and parallel computation algorithm.
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