Prospects and challenges of photonic switching in data centers and computing systems

SJB Yoo - Journal of Lightwave Technology, 2021 - ieeexplore.ieee.org
This Tutorial will discuss the motivation, benefits, and challenges of photonic switching in
data centers and cover prospects of future data centers involving emerging new …

Sirius: A flat datacenter network with nanosecond optical switching

H Ballani, P Costa, R Behrendt, D Cletheroe… - Proceedings of the …, 2020 - dl.acm.org
The increasing gap between the growth of datacenter traffic and electrical switch capacity is
expected to worsen due to the slowdown of Moore's law, motivating the need for a new …

Nanosecond optical switching and control system for data center networks

X Xue, N Calabretta - Nature communications, 2022 - nature.com
Electrical switching based data center networks have an intrinsic bandwidth bottleneck and,
require inefficient and power-consuming multi-tier switching layers to cope with the rapid …

{TopoOpt}: Co-optimizing Network Topology and Parallelization Strategy for Distributed Training Jobs

W Wang, M Khazraee, Z Zhong, M Ghobadi… - … USENIX Symposium on …, 2023 - usenix.org
We propose TopoOpt, a novel direct-connect fabric for deep neural network (DNN) training
workloads. TopoOpt co-optimizes the distributed training process across three dimensions …

Ultrafast optical circuit switching for data centers using integrated soliton microcombs

AS Raja, S Lange, M Karpov, K Shi, X Fu… - Nature …, 2021 - nature.com
Due to the slowdown of Moore's law, it will become increasingly challenging to efficiently
scale the network in current data centers utilizing electrical packet switches as data rates …

Shoal: A network architecture for disaggregated racks

V Shrivastav, A Valadarsky, H Ballani, P Costa… - … USENIX Symposium on …, 2019 - usenix.org
Disaggregated racks comprise a dense cluster of separate pools of compute, memory and
storage blades, all inter-connected through an internal network within a single rack …

PULSE: optical circuit switched data center architecture operating at nanosecond timescales

JL Benjamin, T Gerard, D Lavery, P Bayvel… - Journal of Lightwave …, 2020 - opg.optica.org
We introduce PULSE, a sub-s optical circuit switched data centre network architecture
controlled by distributed hardware schedulers. PULSE is a flat architecture that uses parallel …

Synchronous subnanosecond clock and data recovery for optically switched data centres using clock phase caching

KA Clark, D Cletheroe, T Gerard, I Haller, K Jozwik… - Nature …, 2020 - nature.com
The rapid growth in the amount of data being transferred within data centres, combined with
the slowdown in Moore's Law, creates challenges for the future scalability of electronically …

NegotiaToR: Towards A Simple Yet Effective On-demand Reconfigurable Datacenter Network

C Liang, X Song, J Cheng, M Wang, Y Liu… - Proceedings of the …, 2024 - dl.acm.org
Recent advances in fast optical switching technology show promise in meeting the high
goodput and low latency requirements of datacenter networks (DCN). We present …

AI-optimised tuneable sources for bandwidth-scalable, sub-nanosecond wavelength switching

T Gerard, C Parsonson, Z Shabka, B Thomsen… - Optics …, 2021 - opg.optica.org
Wavelength routed optical switching promises low power and latency networking for data
centres, but requires a wideband wavelength tuneable source (WTS) capable of sub …