Design and Simulation of Multicast Communication Model Based on 2D Torus Network on Chip

In order to avoid the deadlock and high transmission delay of network on chip in multicast communication, this paper put forward a solution of multicast communication model. First, the author carried out a formalized description for the multicast communication model. Secondly, illustrate the deadlock caused by the loop circuit waiting. To solve this problem, the NOC multicast communication model was proposed based on the 2D Torus topology. In addition, this paper also presented an example to validate its correctness. Finally, simulate and apply this model simulation to the NOC of 2D Torus topology structure by the OPNET Modeler. The test results show that this multicast communication model has lower transmission delay and higher throughput volume compared with the unicast routing strategy using XY routing.