IEEE Transactions on Very Large Scale Integration (VLSI) Systems · 2001 · 95 citations · 25 references
EngineeringComputer EngineeringComputer ScienceDesign OptimizationEmbedded SystemsLow-power DesignEmbedded Systems DesignEnergy-efficient DesignEnergy-efficient Embedded SystemsPower ManagementPower OptimizationPower-aware DesignComponent ModelsCycle-accurate ModelingEnergy ConsumptionEnergy DissipationEnergy ProfilingLow-power Embedded DesignLow-power Embedded SystemsPower-efficient Design
Energy-efficient design of battery-powered systems demands optimizations in both hardware and software. We present a modular approach for enhancing instruction level simulators with cycle-accurate simulation of energy dissipation in embedded systems. Our methodology has tightly coupled component models thus making our approach more accurate. Performance and energy computed by our simulator are within a 5% tolerance of hardware measurements on the SmartBadge. We show how the simulation methodology can be used for hardware design exploration aimed at enhancing the SmartBadge with real-time MPEG video feature. In addition, we present a profiler that relates energy consumption to the source code. Using the profiler we can quickly and easily redesign the MP3 audio decoder software to run in real time on the SmartBadge with low energy consumption. Performance increase of 92% and energy consumption decrease of 77% over the original executable specification have been achieved.
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Energy-driven integrated hardware-software optimizations using SimplePower
N. Vijaykrishnan, Mahmut Kandemir, M. Irwin et al. · 2000 · 295 citations · Full text