Efficient and scalable cross‐by‐pass‐mesh topology for networks‐on‐chip. Issue 4 (22nd May 2017)

• Record Type: Journal Article
• Authors: Gulzari, Usman Ali; Anjum, Sheraz; Aghaa, Shahrukh; Khan, Sarzamin; Sill Torres, Frank
• Is Part Of: IET computers & digital techniques. Volume 11:Issue 4(2017)
• Page Start: 140
• Page End: 148
• Publication Date: 2017-05-22
• Subjects: network‐on‐chip -- network topology -- integrated circuit design; scalable cross‐by‐pass‐mesh topology -- scalable networks‐on‐chip topology -- CBP‐Mesh -- cross‐by‐pass links -- embedded traffic traces -- network diameter reduction -- increase bisection bandwidth -- hops average numbers reduction -- network symmetry -- network regularity -- two‐dimensional‐based NoC topologies; Computers -- Periodicals; Digital electronics -- Periodicals; Computer engineering -- Periodicals; Computer architecture -- Periodicals; Computer organization -- Periodicals; 621.39
• DOI: 10.1049/iet-cdt.2016.0184
• Languages: English
• ISSNs: 1751-8601

Abstract

Abstract : This study presents an efficient and scalable networks‐on‐chip (NoC) topology termed as cross‐by‐pass‐mesh (CBP‐Mesh). The proposed architecture is derived from the traditional mesh topology by addition of cross‐by‐pass links in the network. The design and impact of adding cross‐by‐pass links on the topology is analysed in detail with the help of synthetic, hotspot as well as embedded traffic traces. The advantages of proposed CBP‐Mesh as compared with its competitor topologies include reduction in the network diameter, increase in bisection bandwidth, reduction in average numbers of hops, improvement in symmetry and regularity of the network. The synthetic traffic traces and some real embedded system workloads are applied on the proposed CBP‐Mesh and its competitor two‐dimensional‐based NoC topologies. The comparison of analytical results in terms of performance and costs for different network dimensions indicate that the proposed CBP‐Mesh offers short latency, high throughput and good scalability at small increase in power and energy.