Energy optimization in a Network-on-Chip with dynamically reconfigurable processing nodes
Jose Luis Nunez-Yanez, Mohammad Hosseinabady, Atukem Nabina, Isa Zaidi · 2009
This work investigates how the dynamic reconfiguration features available in modern FPGAs can be combined with a voltage-frequency scaling strategy to adapt the processing performance available in the system to the available energy budget. As defined by a hardware operating system, each processing node can configure itself as a virtual processor able to execute a control algorithm that will adjust the voltage-frequency operational point of the reconfigurable fabric so that functions mapped to this fabric meet their processing deadlines. Once the new operational point has been reached the processor is removed from the fabric. This is then reconfigured to implement the application-specific logic exploiting the dynamic nature of FPGAs.