Comparative performance evaluation of latency and link dynamic power consumption modelling algorithms in wormhole switching networks on chip

James Harbin, Leandro Soares Indrusiak
2016 Journal of systems architecture  
Article: Harbin, James orcid.org/0000-0002-6479-8600 and Soares Indrusiak, Leandro orcid.org/0000-0002-9938-2920 (2016) Comparative performance evaluation of latency and link dynamic power consumption modelling algorithms in wormhole switching networks on chip. Journal of systems architecture. Abstract The simulation of interconnect architectures can be a time-consuming part of the design flow of on-chip multiprocessors. Accurate simulation of stateof-the art network-on-chip interconnects can
more » ... ke several hours for realistic application examples, and this process must be repeated for each design iteration because the interactions between design choices can greatly affect the overall throughput and latency performance of the system. This paper presents a series of network-on-chip transaction-level model (TLM) algorithms that provide a highly abstracted view of the process of data transmission in priority preemptive and non-preemptive networks-on-chip, which permit a major reduction in simulation event count. These simulation models are tested using two realistic application case studies and with synthetic traffic. Results presented demonstrate that these lightweight TLM simula- * Corresponding author: Telephone +44 (0)1904 325550, Fax +44 (0)1904 325599 tion models can produce latency figures accurate to within mere flits for the majority of flows, and more than 93% accurate link dynamic power consumption modelling, while simulating 2.5 to 3 orders of magnitude faster when compared to a cycle-accurate model of the same interconnect.
doi:10.1016/j.sysarc.2016.01.002 fatcat:6pmplq7aerhutnxx6nhejqk56u