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Parallel computing and dynamic load balancing of ADPAC on a heterogeneous cluster of Unix and NT operating systems

机译:ADPAC对UNIX和NT操作系统异构集群的平行计算和动态负载平衡

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The current research involves parallel processing of ADPAC (An Advanced Ducted Propfan Analysis Code) on local area and wide area networks formed by combined Unix and Windows/NT environments. ADPAC was originally developed at NASA and Rolls-Royce (formerly, Allison Engine Company) to run on Unix-based system computers [1, 2]. The results obtained from each workstation are compared and verified by using a CFD test case. Timing evaluation and dynamic load balancing studies are conducted. The dynamic load balancing tools developed at the IUPUI's CFD laboratory are utilized in conjunction with a 500,000 grid points CFD test case to perform this task. All the work involving timing evaluation and dynamic load balancing are done by using a 100Mb switch as the communication network. Special emphasis is given to running the code in heterogeneous workstation environments. In order to evaluate the performance of each workstation in heterogeneous environments, the computational and communication times obtained are analyzed. The speedup and efficiency of each workstation in parallel computation are also compared. The effects of load balancing on the total elapsed time and for achieving balanced load in heterogeneous environments are demonstrated in this document.
机译:目前的研究涉及通过组合UNIX和Windows / NT环境形成的局域网和广域网的ADPAC(高级导管Propfan分析代码)的并行处理。 ADPAC最初于美国宇航局和劳斯莱斯(以前,Allison Engine公司)在基于UNIX的系统计算机上运行[1,2]。比较和通过使用CFD测试案例进行比较和验证从每个工作站获得的结果。进行定时评估和动态负载平衡研究。在Iupui的CFD实验室开发的动态负载平衡工具与500,000个网格点CFD测试用例结合使用,以执行此任务。所有涉及定时评估和动态负载平衡的所有工作都是通过使用100MB开关作为通信网络完成的。特别强调在异构工作站环境中运行代码。为了评估在异构环境中的每个工作站的性能,分析所获得的计算和通信时间。还比较了并行计算中每个工作站的加速和效率。本文档证明了负载平衡对总经过时间和实现异构环境中的平衡负荷的影响。

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