This paper considers the use of routerless networks-on-chip as an alternative on-chip interconnect for multiprocessor systems requiring hard real-time guarantees for inter-processor communication. It presents a novel analytical framework that can provide latency upper bounds to real-time packet flows sent over routerless networks-on-chip, and it uses that framework to evaluate the ability of such networks to provide real-time guarantees. Extensive comparative analysis is provided, considering different architectures for routerless networks and a state-of-the-art wormhole network based on priority-preemptive routers as a baseline.
@article{arxiv.2209.10430,
title = {Real-Time Guarantees in Routerless Networks-on-Chip},
author = {Leandro Soares Indrusiak and Alan Burns},
journal= {arXiv preprint arXiv:2209.10430},
year = {2022}
}