Adaptive remaining hop count flow control: Consider the interaction between packets

The interaction between packets affects performance and global fairness of Network-on-Chip. Preferentially transferring packets with small remaining hop counts (PPSR) can reduce the flying packet amount to improve the performance. Yet, the global fairness is negatively affected. In contrast, preferentially transferring packets with large remaining hop counts (PPLR) can achieve better global fairness with a poorer performance. In this paper, we propose adaptive remaining hop count flow control, which dynamically switches between PPSR and PPLR. In this way, we can achieve higher performance and better global fairness.