Toward a high performance distributed memory climate model
- Lawrence Livermore National Lab., CA (United States)
- Univ. of California, Los Angeles, CA (US). Dept. of Atmospheric Sciences
As part of a long range plan to develop a comprehensive climate systems modeling capability, the authors have taken the Atmospheric General Circulation Model originally developed by Arakawa and collaborators at UCLA and have recast it in a portable, parallel form. The code uses an explicit time-advance procedure on a staggered three-dimensional Eulerian mesh. The authors have implemented a two-dimensional latitude/longitude domain decomposition message passing strategy. Both dynamic memory management and interprocessor communication are handled with macro constructs that are preprocessed prior to compilation. The code can be moved about a variety of platforms, including massively parallel processors, workstation clusters, and vector processors, with a mere change of three parameters. Performance on the various platforms as well as issues associated with coupling different models for major components of the climate system are discussed.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10179643
- Report Number(s):
- UCRL-JC-113039; CONF-9307111-2; ON: DE93019156; TRN: AHC29310%%27
- Resource Relation:
- Conference: 2. international symposium on high-performance distributed computing,Spokane, WA (United States),20-23 Jul 1993; Other Information: PBD: 15 Feb 1993
- Country of Publication:
- United States
- Language:
- English
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