R+S: An application-specific hybrid on-chip network based on self-adaptive optimization for communication

In this paper we present R+S: a framework of application-specific hybrid on-chip network (OCN) consisting of S-NET, R-NET and a controller for collaborative work between this two sub-networks. R+S network can optimize data path allocation for time-varying communication self-adaptively. Meanwhile, a low-cost communication-aware algorithm based on least recently receive (LRR) is proposed for collaborative work controller. It can monitor the real-time traffic load and guide the collaborative process. The results show that packet latency and power dissipation for 4×4 mesh R+S network running practical application benchmarks can be improved on average by 57 and 32 percent, respectively, compared with conventional mesh network based on wormhole router using 01 turn routing.