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01341 am a22001933u 4500 |
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371787 |
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|a dc
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|a Balsamo, Domenico
|e author
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|a Weddell, Alex
|e author
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|a Merrett, Geoff V.
|e author
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|a Al-Hashimi, Bashir M.
|e author
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|a Brunelli, Davide
|e author
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|a Benini, Luca
|e author
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|a Hibernus: sustaining computation during intermittent supply for energy-harvesting systems
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|c 2015-03.
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|z Get fulltext
|u https://eprints.soton.ac.uk/371787/1/hibernus.pdf
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|a A key challenge to the future of energy-harvesting systems is the discontinuous power supply that is often generated. We propose a new approach, Hibernus, which enables computation to be sustained during intermittent supply. The approach has a low energy and time overhead which is achieved by reactively hibernating: saving system state only once, when power is about to be lost, and then sleeping until the supply recovers. We validate the approach experimentally on a processor with FRAM nonvolatile memory, allowing it to reactively hibernate using only energy stored in its decoupling capacitance. When compared to a recently proposed technique, the approach reduces processor time and energy overheads by 76-100% and 49-79% respectively.
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|a accepted_manuscript
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|a Article
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