FoldedHexaTorus: An Inter-Chiplet Interconnect Topology for Chiplet-based Systems using Organic and Glass Substrates

Fuente: arXiv
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Autori principali: Iff, Patrick, Besta, Maciej, Hoefler, Torsten
Natura: Preprint
Pubblicazione: 2025
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author Iff, Patrick
Besta, Maciej
Hoefler, Torsten
author_facet Iff, Patrick
Besta, Maciej
Hoefler, Torsten
contents Chiplet-based systems are rapidly gaining traction in the market. Two packaging options for such systems are the established organic substrates and the emerging glass substrates. These substrates are used to implement the inter-chiplet interconnect (ICI), which is crucial for overall system performance. To guide the development of ICIs, we introduce three design principles for ICI network topologies on organic and glass substrates. Based on our design principles, we propose the novel FoldedHexaTorus network topology. Our evaluation shows that the FoldedHexaTorus achieves significantly higher throughput than state-of-the-art topologies while maintaining low latency.
format Preprint
id arxiv_https___arxiv_org_abs_2504_19878
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle FoldedHexaTorus: An Inter-Chiplet Interconnect Topology for Chiplet-based Systems using Organic and Glass Substrates
Iff, Patrick
Besta, Maciej
Hoefler, Torsten
Hardware Architecture
Chiplet-based systems are rapidly gaining traction in the market. Two packaging options for such systems are the established organic substrates and the emerging glass substrates. These substrates are used to implement the inter-chiplet interconnect (ICI), which is crucial for overall system performance. To guide the development of ICIs, we introduce three design principles for ICI network topologies on organic and glass substrates. Based on our design principles, we propose the novel FoldedHexaTorus network topology. Our evaluation shows that the FoldedHexaTorus achieves significantly higher throughput than state-of-the-art topologies while maintaining low latency.
title FoldedHexaTorus: An Inter-Chiplet Interconnect Topology for Chiplet-based Systems using Organic and Glass Substrates
topic Hardware Architecture
url https://arxiv.org/abs/2504.19878