Traffic- And Thermal-Balanced Adaptive Beltway Routing in Thermal Aware 3D NoC Systems
The traffic and thermal problems of high performance Three-Dimensional Network-on-Chip (3D NoC) system become more unbalanced because of chip stacking and applied minimal routing algorithm. To make the temperature under a certain thermal limit, the overheat nodes are throttled by Run-time Thermal Management (RTM). Therefore, the network topology becomes a Non-Stationary Irregular Mesh (NSI-Mesh) and leads to heavy traffic congestion around the throttled nodes. Because of the traffic imbalance in the network, the system performance degrades sharply as temperature rises.