Research On The Five-dimensional Hypercube Fission Topology Of The Three-dimensional Network-on-chip

Two-dimensional Network-on-Chip has made great contributions to improving the performance of existing Systems-on-Chip,but the structure of Systems-on-Chip tend to be complicated in the future.Future devices will have faster processing speeds,smaller sizes,greater performance and lower power consumption.In this trend,we must integrate thousands of IP cores to achieve better application performance.In this case,the traditional two-dimensional network is facing new challenges.The connectivity of two-dimensional Network-on-Chip is no longer suitable for large-scale multi-core Systems-on-Chip that may include hundreds of cores in the future.Three-dimensional network on-chip is an important research direction to solve the bottleneck of network on-chip.3D network topology makes one of the key problems.In this paper,the research on Three-Dimensional Network-on-Chip topology structures based on Platonic solids multistage fission models is carried out in depth by the National Natural Science Foundation of China has been extended in depth.Taking the five-dimensional hypercube as an example,this paper studies the topological structure of high-dimensional hypercube fission on a three-dimensional network and proposes a topology of five dimensional hypercube fission in 3D network on chip.Compared with the same scale topologies,this topology has the advantage of short network diameter and high scalability.The simulation results show that,when two topologies both reach saturation,comparing with 3D Mesh,five dimensional hypercube fission topology can achieve higher throughput under uniform traffic pattern.The throughput of five dimensional hypercube fission topology upgrades by 155%;the average latency degrades by 85.1%;the average hops decrease 21.5%.Comparing with 3D Mesh,the average latency of five dimensional hypercube fission topology degrades by 79.1%;the average hops decreases 13.3%under localized traffic pattern.Simulation results show that the proposed five-dimensional hypercube fission network topology not only retains the advantages of the original hypercube topology,but also solves the communication bottleneck problem of the high-dimensional hypercube topology.