Reconfigurable Network-on-Chip Design for Heterogeneous Multi-core System Architecture

Due to the need to support concurrent executions of versatile applications, the system complexity, in terms of the number of cores, is drastically increased from tens to hundreds or thousands of cores. These complex systems usually contain heterogeneous cores or processing elements such as different processor cores, memories, and several Silicon Intellectual Properties (SIPs). Network-on-chip (NoC) was proposed to provide scalability and higher throughput for these heterogeneous multicore systems. However, general designs of NoC infrastructures for multi-core systems usually lack the flexibility to support different processing requirements such as performance, power, reliability, and response time. It is helpful if designers can provide a reconfigurable NoC design so that these requirements can be supported more easily. In this work, we take an existing reconfigurable NoC for example and discuss related hardware and software issues. Some issues such as the reconfiguration time overhead must be considered in the design of a reconfigurable NoC such that it can be used for heterogeneous multi-core systems.