2008
DOI: 10.1145/1394608.1382129
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Technology-Driven, Highly-Scalable Dragonfly Topology

Abstract: Evolving technology and increasing pin-bandwidth motivate the use of high-radix routers to reduce the diameter, latency, and cost of interconnection networks. High-radix networks, however, require longer cables than their low-radix counterparts. Because cables dominate network cost, the number of cables, and particularly the number of long, global cables should be minimized to realize an efficient network. In this paper, we introduce the dragonfly topology which uses a group of high-radix routers as a virtual … Show more

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Cited by 255 publications
(145 citation statements)
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“…While Cielo utilized the Cray Gemini interconnect configured in a 3D torus, Trinity's interconnect uses the Cray Aries interconnect configured in a Dragonfly [1], [2] configuration. While some of the features of these two interconnect technologies are similar, there are large differences in message logging, performance counters, error handling, adaptive routing, and hot swapability.…”
Section: B New Interconnect Featuresmentioning
confidence: 99%
“…While Cielo utilized the Cray Gemini interconnect configured in a 3D torus, Trinity's interconnect uses the Cray Aries interconnect configured in a Dragonfly [1], [2] configuration. While some of the features of these two interconnect technologies are similar, there are large differences in message logging, performance counters, error handling, adaptive routing, and hot swapability.…”
Section: B New Interconnect Featuresmentioning
confidence: 99%
“…A binary fat-tree is pedagogically most common but would require too many switches to achieve 100K network endpoints and is not considered. A dragonfly topology [30] is another strong candidate for extreme-scale. However, maximizing throughput requires more complicated routing schemes, e.g.…”
Section: B Machine Configurationsmentioning
confidence: 99%
“…Recently, hybrid and hierarchical topologies [10], [11] have been proposed to get the benefits from both direct and indirect topologies. Indeed, hybrid topologies aim to provide a similar performance to (or even higher than) that of indirect topologies, but at a similar cost to that of direct topologies.…”
Section: A High-performance Network Topologiesmentioning
confidence: 99%