Weather forecasting on parallel architectures
Global forecasting at the National Meteorological Center is performed using a spherical harmonics spectral model. The model is used in global data assimilation, and in the aviation and medium range forecast production suites. In this presentation, the major numerical and physical aspects of the mode...
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| Published in: | Parallel computing Vol. 21; no. 10; pp. 1639 - 1654 |
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| Format: | Journal Article |
| Language: | English |
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Elsevier B.V
1995
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| ISSN: | 0167-8191, 1872-7336 |
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| Abstract | Global forecasting at the National Meteorological Center is performed using a spherical harmonics spectral model. The model is used in global data assimilation, and in the aviation and medium range forecast production suites. In this presentation, the major numerical and physical aspects of the model are highlighted, and parallelization considerations are analyzed and applied to three parallel computer architectures. The first parallelization is on a parallel vector processor shared memory platform such as Cray YMP or C90. The other two are on distributed memory platforms: a data parallel implementation on Connection Machines and a single program multiple data (SPMD) adaptation to a Cray T3D machine. |
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| AbstractList | Global forecasting at the National Meteorological Center is performed using a spherical harmonics spectral model. The model is used in global data assimilation, and in the aviation and medium range forecast production suites. In this presentation, the major numerical and physical aspects of the model are highlighted, and parallelization considerations are analyzed and applied to three parallel computer architectures. The first parallelization is on a parallel vector processor shared memory platform such as Cray YMP or C90. The other two are on distributed memory platforms: a data parallel implementation on Connection Machines and a single program multiple data (SPMD) adaptation to a Cray T3D machine. |
| Author | Sela, J.G. |
| Author_xml | – sequence: 1 givenname: J.G. surname: Sela fullname: Sela, J.G. email: wd23ys@sun4.wwb.noaa.gov organization: National Meteorological Center, W/NMC2 WWB Room 207, Washington DC 20233, USA |
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| Cites_doi | 10.1175/1520-0450(1989)028<0833:AGCOAR>2.0.CO;2 10.1175/1520-0469(1974)031<0118:APFTAO>2.0.CO;2 10.1002/cpe.4330040402 10.1002/qj.49708135027 10.1006/jpdc.1994.1047 10.1175/1520-0469(1970)027<0890:TMFTCO>2.0.CO;2 10.1175/1520-0493(1974)102<0687:AMLSMI>2.0.CO;2 10.1175/1520-0493(1980)108<1279:SMATNM>2.0.CO;2 10.1256/smsqj.47708 10.1175/1520-0469(1975)032<1475:TSEAAN>2.0.CO;2 10.1175/1520-0493(1992)120<0835:TPSOTS>2.0.CO;2 10.1002/cpe.4330040703 10.1145/7902.7903 10.1175/1520-0469(1971)028<0145:APATDT>2.0.CO;2 10.1175/1520-0469(1974)031<1232:FSOTPO>2.0.CO;2 10.1175/1520-0469(1965)022<0040:OFAIOT>2.0.CO;2 10.1175/1520-0493(1990)118<2500:ASPSOE>2.0.CO;2 10.1029/JC086iC10p09707 10.1029/JC086iC02p01205 |
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| Keywords | Spectral transform Shared-memory parallel computing, Message passing Weather prediction Atmospheric general circulation modeling |
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Res. doi: 10.1029/JC086iC10p09707 – year: 1972 ident: 10.1016/0167-8191(95)00039-1_BIB23 article-title: On the integration of the spectral hydrodynamical equations by a transform method publication-title: Institute for Theoretical Meteorology, University of Copenhagen, Report No. 3 – ident: 10.1016/0167-8191(95)00039-1_BIB10 doi: 10.1029/JC086iC02p01205 – ident: 10.1016/0167-8191(95)00039-1_BIB24 – start-page: 297 year: 1983 ident: 10.1016/0167-8191(95)00039-1_BIB33 article-title: The sensitivity of the time-mean large-scale flow to cumulus convection in the ECMWF model |
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| Snippet | Global forecasting at the National Meteorological Center is performed using a spherical harmonics spectral model. The model is used in global data... |
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| SubjectTerms | Atmospheric general circulation modeling Aviation Computer architecture Distributed computer systems Harmonic analysis Mathematical models Numerical methods Parallel processing systems Q1 Shared-memory parallel computing, Message passing Spectral transform Spectrum analysis Weather forecasting Weather prediction |
| Title | Weather forecasting on parallel architectures |
| URI | https://dx.doi.org/10.1016/0167-8191(95)00039-1 https://www.proquest.com/docview/15699894 https://www.proquest.com/docview/26048996 |
| Volume | 21 |
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