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为求得片上网络(NoC)拓扑映射的近似最优解,提出一种面向MeshNoC的层次化多目标映射方法——HMMap。该方法采用分组和多目标启发式算法,自动将给定应用的IP核映射到NoC体系结构上,有效支持大规模IP核的映射,并且能够很好地权衡系统通信能耗和延迟两个关键设计指标。实验表明,HMMap相对现有方法运行时间短,所得到的拓扑映射方案在降低通信能耗和延迟方面均效果显著。随着NoC规模的增大,HMMap的优势更加明显。
In order to obtain the approximate optimal solution of NoC topological mapping, a hierarchical multi-objective mapping method for MeshNoC is proposed, namely HMMap. This method uses packet and multi-target heuristics to automatically map a given application’s IP core to a NoC architecture and effectively support the mapping of large-scale IP cores, as well as to balance the two key aspects of system communication energy consumption and latency Design specifications. Experiments show that HMMap has a short running time compared with the existing methods, and the topology mapping scheme obtained has significant effects in reducing communication energy consumption and delay. With the increasing size of NoC, the benefits of HMMap become more apparent.