论文部分内容阅读
对研制计算流体力学高效并行算法及软件具有重要意义的并行计算问题提出了导引性的看法．首先综述了并行计算机的主要设计特征并简要描述了市场现有的几种并行系统．接着介绍了一些有关研制并行算法及评价其性能的重要概念．然后讨论了如何使分布式内存并行计算机的运行负载不平衡和通信开销达到最小．最后列举了计算流体力学某些算例的测试结果．本文的重点是结构网格和分程序结构网格的应用，但这些概念和方法对非结构网格同样有效
This paper presents an introductory view on the parallel computing problem that is of great importance in the development of efficient computational fluid dynamics parallel algorithms and software. First of all, the main design features of parallel computers are summarized and some existing parallel systems in the market are briefly described. Then introduced some important concepts related to the development of parallel algorithms and evaluation of their performance. Then it discusses how to make the distributed memory parallel computer run load imbalance and communication overhead to a minimum. Finally, some examples of CFD test results are listed. This article focuses on the application of structured grids and sub-structured grids, but these concepts and methods are equally valid for unstructured grids