A blocking optimization method by convergence of cores for application-based optical circuit switched network-on-chip

With the development of technology of integrated circuit (IC), there will be several hundred million or even several billion transistors in one chip. Optical network on chip (ONoC) has been identified as an effective communication architecture to achieve better performance in delay and energy consumption. However, in circuit switched ONoC, the blocking situation degrades the performance severely. In this paper, a method that converge intellectual property (IP) cores with the same destination address or the same source address is proposed to reduce the blocking probability in circuit switched ONoC. We compare the proposed converged circuit switched ONoC with non-converged circuit switched ONoC in terms of end-to-end (ETE) delay and energy dissipation under various applications. The simulation results show that the converged ONoC improves the ETE delay with small change in energy efficiency.