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dc.contributor.authorLee, Jungheeen
dc.contributor.authorNicopoulos, Chrysostomos A.en
dc.contributor.authorLee, Hyung Gyuen
dc.contributor.authorKim, Jongmanen
dc.creatorLee, Jungheeen
dc.creatorNicopoulos, Chrysostomos A.en
dc.creatorLee, Hyung Gyuen
dc.creatorKim, Jongmanen
dc.description.abstractThe escalating proliferation of multicore chips has accentuated the criticality of the on-chip network. Packet-based networks-on-chip (NoC) have emerged as the de facto interconnect of future chip multi-processors (CMP). On-chip traffic comprises a mixture of data and control messages from the cache coherence protocol. Given the latency-criticality of control messages, in this paper we aim to optimize their delivery times. Instead of treating the on-chip router as a monolithic component, we advocate the introduction of an ultra-low-latency ring-inspired (i.e., utilizing ring primitive building blocks) support micro-network that is optimized for control messages. This $$\upmu $$ μ NoC is fused with a throughput-driven conventional NoC router to form a hybrid architecture, called Centaur, which maintains separate data paths and control logic for the two fused networks. Full-system simulation results from a 64-core CMP indicate that the proposed fused Centaur router improves overall system performance by up to 26 %, as compared to a state-of-the-art router implementation. Furthermore, hardware synthesis results using commercial 65 nm libraries indicate that Centaur’s area and power overheads are 9 and 3 %, respectively, as compared to a baseline router design. More importantly, the new design does not affect the router’s critical path.en
dc.sourceDesign Automation for Embedded Systemsen
dc.titleCentaur: a hybrid network-on-chip architecture utilizing micro-network fusionen
dc.description.endingpage139Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering
dc.source.abbreviationDes.Autom.Embedded Sys.en
dc.contributor.orcidNicopoulos, Chrysostomos A. [0000-0001-6389-6068]

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