The Octagonal-Cross-By-Pass-Mesh Topology Design for the On-Chip-Communication

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This article presents the novel Octagonal-Cross-By-Pass-Mesh (Octa-CBP-Mesh) network topology design for on-chip communication. We have recently presented the cross-by-pass mesh (CBP-Mesh) topology, which outperformed its classed competitors like modified 2-Diamesional-meshes. The effectiveness of the Cross-by-pass links in the CBP-Mesh played a vital role in enhancing the capabilities of the network characteristics and the overall performance of the topology from its competitors. In this study, keeping in view the weaknesses of the CBP-Mesh network, we proposed the Octa-CBP-Mesh network topology, which further improved compared to state-of-the-art predecessors and competitors. The addition of intelligent CBP-Links in Octa-CBP-Mesh design reduces network diameter and improves other network parameters like increasing the bisection-width, path diversity, fault tolerance, and reduces the average number of hops. The synthetic and embedded application traffic traces were applied to the proposed Octa-CBP-Mesh, its predecessors, and its competitor topologies. The simulation results showed that the Octa-CBP-Mesh performed better in terms of network latency and throughput than state-of-the-art topologies with a negligible increase in network energy and power consumption than CBP-Mesh topology only.