High-Quality Fault Resiliency in Fat Trees

Autor:	Gliksberg, John, Capra, Antoine, Louvet, Alexandre, Garcia, Pedro Javier, Sohier, Devan
Rok vydání:	2022
Předmět:	Computer Science - Distributed Parallel and Cluster Computing Computer Science - Networking and Internet Architecture
Zdroj:	IEEE Micro, 2020, 40 (1), pp.44-49. \&\#x27E8;10.1109/MM.2019.2949978\&\#x27E9
Druh dokumentu:	Working Paper
Popis:	Coupling regular topologies with optimised routing algorithms is key in pushing the performance of interconnection networks of supercomputers.In this paper we present Dmodc, a fast deterministic routing algorithm for Parallel Generalised Fat-Trees (PGFTs) which minimises congestion risk even under massive network degradation caused by equipment failure.Dmodc computes forwarding tables with a closed-form arithmetic formula by relying on a fast preprocessing phase.This allows complete re-routing of networks with tens of thousands of nodes in less than a second.In turn, this greatly helps centralised fabric management react to faults with high-quality routing tables and no impact to running applications in current and future very large-scale HPC clusters. Comment: arXiv admin note: text overlap with arXiv:2211.11817
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2211.13101 Zobrazit plný text záznamu View this record from Arxiv