system-level power estimation and optimization
Most work to date on power reduction has focused at the component level, not at the system level. In this paper, we propose a framework for describing the power behavior of system-level designs. The model consists of a set of resources, an environmental workload specification, and a power management policy , which serves as the heart of the system model. We map this model to a simulation-based framework to obtain an estimate of the system's power dissipation. Accompanying this, we propose an algorithm to optimize power management policies. The optimization algorithm can be used in a tight loop with the estimation engine to derive new power-management policy algorithms for a given system-level description. We tested our approach by applying it to a real-life low-power portable design, achieving a power estimation accuracy of ?10\%, and a 23\% reduction in power after policy optimization.
systems power estimates optimality reduction component paper behavior system-level design design model resource workload management policy system modeling power dissipation algorithm engine power-management portability accuracy  framework  simulation low power - power estimation