Number Formats, Error Mitigation, and Scope for 16‐Bit Arithmetics in Weather and Climate Modeling Analyzed With a Shallow Water Model

Number Formats, Error Mitigation, and Scope for 16‐Bit Arithmetics in Weather and Climate Modeling Analyzed With a Shallow Water Model

Abstract The need for high‐precision calculations with 64‐bit or 32‐bit floating‐point arithmetic for weather and climate models is questioned. Lower‐precision numbers can accelerate simulations and are increasingly supported by modern computing hardware. This paper investigates the potential of 16‐...

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Bibliographic Details
Main Authors: M. Klöwer, P. D. Düben, T. N. Palmer
Format: Article
Language:English
Published: American Geophysical Union (AGU) 2020-10-01
Series:Journal of Advances in Modeling Earth Systems
Subjects:
Reduced precision
16‐bit arithmetic
climate models
rounding error
floating‐point numbers
posit numbers
Online Access:https://doi.org/10.1029/2020MS002246

Internet

https://doi.org/10.1029/2020MS002246

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