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Study of machine round-off response on weather forecasting simulations using high performance computing systems

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3 Author(s)
Janakiraman, S. ; Centre for Dev. of Adv. Comput., Pune Univ., India ; Ratnam, J.V. ; Kaginalkar, A.

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.

Published in:

High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on  (Volume:2 )

Date of Conference:

14-17 May 2000