Performance of a portable, parallel atmospheric general circulation model

Conference · Fri Dec 31 00:00:00 EST 1993

OSTI ID:54387

Mirin, A A; Dannevik, W P; Wehner, M F; Brown, J C; Chan, B ^[1]

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1. Lawrence Livermore National Lab., CA (United States)

We have taken the Atmospheric General Circulation Model originally developed by Arakawa and collaborators at UCLA and have recast it in portable, parallel form. The code uses an explicit time-advance procedure on a staggered 3-D Eulerian mesh. We have implemented a 2-D latitude/longitude domain decomposition message passing strategy. Both dynamic memory management and interprocessor communication are handled with macro constructs that are M4-preprocessed prior to compilation. The code can be moved about a variety of platforms, including MPP`s, workstation clusters, and Crays, with a mere change of three parameters. Performance on the various platforms is discussed.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 54387
• Report Number(s): DOE/ER/25151-1-Vol.1; CONF-930331-Vol.1; TRN: 94:007584-0019
• Resource Relation: Conference: 6. Society for Industrial and Applied Mathematics (SIAM) conference on parallel processing for scientific computing, Norfolk, VA (United States), 21-24 Mar 1993; Other Information: PBD: 1993; Related Information: Is Part Of Parallel processing for scientific computing: Proceedings. Volume 1; Sincovec, R.F.; Leuze, M.R. [eds.] [Oak Ridge National Lab., TN (United States)]; Keyes, D.E. [ed.] [Yale Univ., New Haven, CT (United States)]; Petzold, L.R. [ed.] [Minnesota Univ., Minneapolis, MN (United States)]; Reed, D.A. [ed.] [Illinois Univ., Chicago, IL (United States)]; PB: 522 p.
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
PARALLEL PROCESSING
ALGORITHMS
ATMOSPHERIC CIRCULATION
COMPUTERIZED SIMULATION
GENERAL CIRCULATION MODELS