Architectural Issues in Homogeneous NoC-Based MPSoC

Multi-Processors Systems-on-Chip (MPSoCs) are becoming increasingly popular in embedded systems for the high de-gree of performance and flexibility they permit. While most MPSoCs are today highly heterogeneous for better fitting the target applications, homogeneous systems may become in a near future a viable alternative bringing other benefits such as run-time load balancing. The work presented in this paper relies on a homogenous NoC-based MPSoC framework we developed which allows us to conduct evaluations of 3 differ-ent techniques: proactive/reactive communication, preemp-tive task mapping and task replication. The impact on the system performance is discussed for several mappings of a MJPEG decoder application