Threshold-based routing-topology co-design for optical data center

P Cao, S Zhao, D Zhang, Z Liu, M Xu… - IEEE/ACM …, 2023 - ieeexplore.ieee.org
Despite the bandwidth scaling limit of electrical switching and the high cost of building Clos
data center networks (DCNs), the adoption of optical DCNs is still limited. There are two …

FIGRET: Fine-Grained Robustness-Enhanced Traffic Engineering

X Liu, S Zhao, Y Cui, X Wang - Proceedings of the ACM SIGCOMM 2024 …, 2024 - dl.acm.org
Traffic Engineering (TE) is critical for improving network performance and reliability. A key
challenge in TE is the management of sudden traffic bursts. Existing TE schemes either do …

Nonblocking conditions for Clos fabrics with non-uniform switch radixes

T Inoue, T Mano, K Anazawa, T Uno - Journal of Optical …, 2024 - opg.optica.org
<? TeX 2pc 0pt?> Datacenter networks (DCNs) evolve over years and so comprise switches
from different generations. Thus, each stage/layer of the Clos fabric may consist of switches …

A case for server-scale photonic connectivity

AV Kumar, A Devraj, D Bunandar, R Singh - Proceedings of the 23rd …, 2024 - dl.acm.org
The commoditization of machine learning is fuelling the demand for compute required to
both train large models and infer from them. At the same time, scaling the performance of …

Flexible silicon photonic architecture for accelerating distributed deep learning

Z Wu, L Yuan Dai, Y Wang, S Wang… - Journal of Optical …, 2024 - opg.optica.org
The increasing size and complexity of deep learning (DL) models have led to the wide
adoption of distributed training methods in datacenters (DCs) and high-performance …

Flattened clos: Designing high-performance deadlock-free expander data center networks using graph contraction

S Zhao, Q Zhang, P Cao, X Zhang, X Wang… - … USENIX Symposium on …, 2023 - usenix.org
Clos networks have witnessed the successful deployment of RoCE in production data
centers. However, as DCN bandwidth keeps increasing, building Clos networks is becoming …

GDPlan: Generative Network Planning via Graph Diffusion Model

N Kan, S Yan, J Zou, W Dai, X Gao… - IEEE Transactions on …, 2025 - ieeexplore.ieee.org
Network planning is crucial to facilitate network service under limited network operation
costs. However, adapting the network topology (ie, connections and capacities for physical …

P4INC-AOI: All-Optical Interconnect Empowered by In-Network Computing for DML Workloads

X **e, B Tang, X Chen, Z Zhu - IEEE Transactions on …, 2025 - ieeexplore.ieee.org
Increasing demands for distributed machine learning (DML) have posed significant pressure
on data-center networks (DCNs). This promotes the adoption of reconfigurable all-optical …

Orchid: enhancing HPC interconnection networks through infrequent topology reconfiguration

L Qin, H Gu, X Yu, Z Cai, J Liu - Journal of Optical Communications …, 2024 - opg.optica.org
Interconnection networks are<? TeX-2pc 0pt?> key components of high-performance
computing (HPC) systems. As HPC evolves towards the exascale era, providing sufficient …

COCSN: A Multi-tiered Cascaded Optical Circuit Switching Network for Data Center

S Li, H Gu, X Yu, H Huang, S Wang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
A cascaded network represents a classic scaling-out model in traditional electrical switching
networks. Recent proposals have integrated optical circuit switching at specific tiers of these …