Aeras: A next generation global atmosphere model

Journal Article · Mon Jun 01 00:00:00 EDT 2015 · Procedia Computer Science

DOI:https://doi.org/10.1016/j.procs.2015.05.478· OSTI ID:1214604

Spotz, William F. ^[1]; Smith, Thomas M. ^[1]; Demeshko, Irina P. ^[1]; Fike, Jeffrey A. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sandia National Laboratories is developing a new global atmosphere model named Aeras that is performance portable and supports the quantification of uncertainties. These next-generation capabilities are enabled by building Aeras on top of Albany, a code base that supports the rapid development of scientific application codes while leveraging Sandia's foundational mathematics and computer science packages in Trilinos and Dakota. Embedded uncertainty quantification (UQ) is an original design capability of Albany, and performance portability is a recent upgrade. Other required features, such as shell-type elements, spectral elements, efficient explicit and semi-implicit time-stepping, transient sensitivity analysis, and concurrent ensembles, were not components of Albany as the project began, and have been (or are being) added by the Aeras team. We present early UQ and performance portability results for the shallow water equations.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1214604
• Journal Information: Procedia Computer Science, Vol. 51, Issue C; ISSN 1877-0509
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
global atmosphere model
performance portability
uncertainty quantification