DocumentCode
2011531
Title
Study of machine round-off response on weather forecasting simulations using high performance computing systems
Author
Janakiraman, S. ; Ratnam, J.V. ; Kaginalkar, Akshara
Author_Institution
Centre for Dev. of Adv. Comput., Pune Univ., India
Volume
2
fYear
2000
fDate
14-17 May 2000
Firstpage
1070
Abstract
The weather forecasting model T80L18 is found to be sensitive to variations in the computing platform. The global spectral model simulations variation due to machine round-off is examined using rounding mode analysis and the perturbation methods. The perturbation simulations of machine round-off correctly estimates the error bounds of the T80L18 weather forecasting model.
Keywords
digital simulation; error analysis; floating point arithmetic; geophysics computing; roundoff errors; weather forecasting; T80L18 weather forecasting model; computing platform; error bounds; floating-point arithmetic; global reduction calls; global spectral model simulations variation; high performance computing systems; machine round-off response; machine rounding errors; perturbation methods; rounding mode analysis; rounding modes; weather forecasting model; weather forecasting simulations;
fLanguage
English
Publisher
ieee
Conference_Titel
High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on
Conference_Location
Beijing, China
Print_ISBN
0-7695-0589-2
Type
conf
DOI
10.1109/HPC.2000.843604
Filename
843604
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