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The use of imprecise processing to improve accuracy in weather and climate prediction

Abstract:

The use of stochastic processing hardware and low precision arithmetic in atmospheric models is investigated. Stochastic processors allow hardware-induced faults in calculations, sacrificing bit-reproducibility and precision in exchange for improvements in performance and potentially accuracy of forecasts, due to a reduction in power consumption that could allow higher resolution. A similar trade-off is achieved using low precision arithmetic, with improvements in computation and communicatio...

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Publication status:
Published

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Publisher copy:
10.1016/j.jcp.2013.10.042

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atmos Ocean and Planet Physics
Role:
Author
Journal:
JOURNAL OF COMPUTATIONAL PHYSICS
Volume:
271
Pages:
2-18
Publication date:
2014-08-15
DOI:
EISSN:
1090-2716
ISSN:
0021-9991
URN:
uuid:1efa5a94-daf0-411f-912f-b85ef0f83aac
Source identifiers:
440721
Local pid:
pubs:440721

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