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Multicast performance analysis for high-speed torus networks

机译:高速环形网络的组播性能分析

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Overall efficiency of high-performance computing clusters not only relies on the computing power of the individual nodes, but also on the performance that the underlying network can provide to the computational application. Although modern high-performance networks, especially system area networks (SAN), have high unicast performance, they do not support multicast communication in hardware. This research experimentally evaluates the performance of various protocols for unicast-based and path-based multicast communication on high-speed torus networks. Software-based multicast performance results of selected algorithms on a 16-node Scalable Coherent Interface (SCI) torus are given. The strengths and weaknesses of the various protocols are illustrated in terms of startup and completion latency, CPU utilization, and link utilization and concurrency.
机译:高性能计算群集的整体效率不仅取决于各个节点的计算能力,而且还取决于基础网络可以提供给计算应用程序的性能。尽管现代的高性能网络(尤其是系统区域网络(SAN))具有较高的单播性能,但它们不支持硬件中的多播通信。这项研究实验性地评估了高速环网上基于单播和基于路径的多播通信的各种协议的性能。给出了在16节点可扩展一致性接口(SCI)圆环上选定算法的基于软件的多播性能结果。在启动和完成延迟,CPU利用率以及链接利用率和并发性方面说明了各种协议的优缺点。

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