The Scalable Octagonal-Cross-By-Pass-Torus topology for the on-chip-communication

Abstract

This research presents the Scalable Octagonal-Cross-By-Pass-Torus (Octa-CBP-Torus) network topology design for Network-on-chip communication. Recently, we presented the Octagonal-Cross-By-Pass-Mesh (Octa-CBP-Mesh), CBP-Mesh, and CBP-Torus topologies, which outclassed its modified 2-Diamesinoal-mesh competitors. The effectiveness of the cross-by-pass (CBP) links in the CBP-Mesh and CBP-Torus designs played a pivotal role in enhancing the capabilities of the network characteristics and the overall performance of the topologies. Furthermore, with the addition of CBP-Links in the CBP-Mesh design, we presented the Octa-CBP-Mesh network which is improved from its predecessor and its competitors’ topologies. This study presents the Torus version of the Octa-CBP-Mesh design network topology. The addition of Torus-Links in the proposed Octa-CBP-Torus design reduces network diameter and improves the other network parameters as the increases the bisection-width, path diversity, and tolerance and reduces average numbers of hops from its competitor topologies. The syntactic and embedded application traffic traces were applied to the proposed Octa-CBP-Torus and compared with its competitor topologies. The simulation results showed that the Octa-CBP-Torus is better and outclasses the performance in network latency, and throughput, and slightly increased in network energy and power consumption than its competitor.