Scalable Deadlock-Free Deterministic Minimal-Path Routing Engine for InfiniBand-Based Dragonfly Networks

Maglione-Mathey, German; Yébenes, Pedro; Escudero-Sahuquillo, Jesús; García, Pedro J.; Quiles, Francisco J.; Zahavi, Eitan

doi:10.1109/tpds.2017.2742503

Cited by 20 publications

(1 citation statement)

References 32 publications

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“…Considerable research efforts have been devoted to investigating a range of efficient network topologies for HPC systems, including Flattened Butterfly [9][10][11], Dragonfly [12][13][14], HyperX [15], Skywalk [16], and SlimFly [17]. These structures are capable of delivering low diameters for HPC systems while also ensuring scalability through the port numbers (radixes) of the construction blocks (routers) [18].…”

Section: Introductionmentioning

confidence: 99%

All-to-All Broadcast Algorithm in Galaxyfly Networks

Zhuang

Chang

et al. 2023

Mathematics

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The design of interconnection networks is a fundamental aspect of high-performance computing (HPC) systems. Among the available topologies, the Galaxyfly network stands out as a low-diameter and flexible-radix network for HPC applications. Given the paramount importance of collective communication in HPC performance, in this paper, we present two different all-to-all broadcast algorithms for the Galaxyfly network, which adhere to the supernode-first rule and the router-first rule, respectively. Our performance evaluation validates their effectiveness and shows that the first algorithm has a higher degree of utilization of network channels, and that the second algorithm can significantly reduce the average time for routers to collect packets from the supernode.

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