Hierarchical energy monitoring for many-core systems

Power/energy managers for many-core systems has been proposed as a possible solution for the restricted power constraints imposed by new chip technologies. Therefore, when these management approaches are implemented on real systems, strong limitations to apply the management techniques has been reported. The hierarchical energy monitoring method presented in this paper provides a multi-level energy data for power/energy management. The proposed energy monitoring is implemented at the software level on a real homogeneous NoC-based many-core platform, with low intrusiveness on hardware. The energy monitoring data is transmitted through packets on the network with low impact on system performance.