A Fast Yet Accurate Message-level Communication Bus Model for Timing Prediction of SDFGs on MPSoC

Abstract

Fast yet accurate performance and timing prediction of complex parallel data flow applications on multi-processor systems remains a difficult discipline. The reason for it comes from the complexity of the data flow applications and the hardware platform with shared resources, like buses and memories. This combination may lead to complex timing interferences that are difficult to express in pure analytical or classical simulation-based approaches. In this work, we propose a message-level communication model for timing and performance prediction of Synchronous Data Flow (SDF) applications on MPSoCs with shared memories. We compare our work against measurement and TLM simulation-based performance prediction models on two case-studies from the computer vision domain. We show that the accuracy and execution time of our simulation outperforms existing approaches and is suitable for a fast yet accurate design space exploration.