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A Family of Fault-Tolerant Efficient Indirect Topologies

机译：一系列容错的有效间接拓扑

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On the one hand, performance and fault-tolerance of interconnection networks are key design issues for high performance computing (HPC) systems. On the other hand, cost should be also considered. Indirect topologies are often chosen in the design of HPC systems. Among them, the most commonly used topology is the fat-tree. In this work, we focus on getting the maximum benefits from the network resources by designing a simple indirect topology with very good performance and fault-tolerance properties, while keeping the hardware cost as low as possible. To do that, we propose some extensions to the fat-tree topology to take full advantage of the hardware resources consumed by the topology. In particular, we propose three new topologies with different properties in terms of cost, performance and fault-tolerance. All of them are able to achieve a similar or better performance results than the fat-tree, providing also a good level of fault-tolerance and, contrary to most of the available topologies, these proposals are able to tolerate also faults in the links that connect to end nodes.
机译：一方面，互连网络的性能和容错是高性能计算（HPC）系统的关键设计问题。另一方面，还应考虑成本。在HPC系统的设计中经常选择间接拓扑。其中，最常用的拓扑是胖树。在这项工作中，我们致力于通过设计具有非常好的性能和容错特性的简单的间接拓扑结构，同时保持尽可能低的硬件成本，从网络资源中获得最大的收益。为此，我们建议对胖树拓扑进行一些扩展，以充分利用拓扑消耗的硬件资源。特别是，我们提出了三种在成本，性能和容错方面具有不同属性的新拓扑。与胖树相比，所有这些提议都可以实现相似或更好的性能结果，并且还提供了良好的容错水平，并且与大多数可用的拓扑结构相反，这些提议还可以容忍链接中的错误。连接到终端节点。

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