文章基本信息

标题：A New Number Format for Ensemble Simulations
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作者：Peter D. Düben
期刊名称：Journal of Advances in Modeling Earth Systems
电子版ISSN：1942-2466
出版年度：2018
卷号：10
期号：11
页码：2983-2991
DOI：10.1029/2018MS001420
出版社：John Wiley & Sons, Ltd.
摘要：A new number format for ensemble simulations for weather and climate predictions is presented. The new format exploits similarities between ensemble members to reduce overall data usage. Data use and movement is the most important performance bottleneck for weather and climate models on modern supercomputers. The new format can be realized on standard hardware and with standard computing languages such as Fortran. The format is tested in simulations with a shallow water model. Advantages and disadvantages are discussed.
关键词：ensemble predictions;high‐performance computing;floating point numbers;model development;information content;predictability