Automatic communication refinement for system level design

This paper presents a methodology and algorithms for automatic communication refinement. The communication refinement task in system-level synthesis transforms abstract data-transfer between components to its actual bus level implementation. The input model of the communication refinement is a set of concurrently executing components, communicating with each other through abstract communication channels. The refined model reflects the actual communication architecture. Choosing good communication architecture in system level design requires sufficient exploration through evaluation of various architectures. However, this would not be possible with manually refining the system model for each communication architecture. For one, manual refinement is tedious and error-prone. Secondly, it wastes substantial amount of precious designer time. We solve this problem with automatic model refinement. We also present a set of experimental results to demonstrate how the proposed approach works on a typical system level design.