Scaling architecture-on-demand based optical networks

Meyer, Hugo; Sancho, José Carlos; Mrdakovic, Milica; Peng, Shuping; Simeonidou, Dimitra; Miao, Wang; Calabretta, Nicola

doi:10.1145/2833312.2833453

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…Current data center networks and HPCs are evolving from the hierarchical networks based on high radix electrical switches to optical interconnecting networks to meet the high bandwidth, low latency, cost, and power consumption efficiency requirements. Several optical switching technologies have been investigated based on Opto-mechanical and Piezo-electric Circuit Switching (OCS) [6][7][8][9][10], Fast Optical Switching (FOS) [11][12][13], and arrayed waveguide router (AWGR) combined with fast tunable lasers [14,15]. Exploiting optical switching technologies that transparently switch high data rate signals in DCN can efficiently reduce the cost and power consuming O/E/O interconnects and latency.…”

Section: Introductionmentioning

confidence: 99%

FOSquare: A Novel Optical HPC Interconnect Network Architecture Based on Fast Optical Switches with Distributed Optical Flow Control

Yan

Yuan

et al. 2021

Photonics

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Interconnecting networks adopting Fast Optical Switches (FOS) can achieve high bandwidth, low latency, and low power consumption. We propose and demonstrate a novel interconnecting topology based on FOS (FOSquare) with distributed fast flow control which is suitable for HPC infrastructures. We also present an Optimized Mapping (OPM) algorithm that maps the most communication-related processes inside a rack. We numerically investigate and compare the network performance of FOSquare with Leaf-Spine under real traffic traces collected by running multiple applications (CG, MG, MILC, and MINI_MD) in an HPC infrastructure. The numerical results show that the FOSquare can reduce >10% latency with respect to Leaf-Spine under the scenario of 16 available cores.

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