Open Access Digital Repository of Ministry of Earth Sciences, Government of India

Profiling and scalability of the high resolution NCEP model for weather and climate simulations

Phani, R and Sahai, AK and Suryachandra Rao, A and Smd, J (2012) Profiling and scalability of the high resolution NCEP model for weather and climate simulations. In: 19th International Conference on High Performance Computing, 18-22 December, Pune, India.

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Coupled climate modeling has become one of the most challenging fields with the development of multicore architectures and its importance in daily weather and climate predictions. At IITM, 'PRITHVI' cluster (70TF), NCEP Climate Forecast System (CFS) and its atmospheric component (GFS) have been installed on IBM Power6 architecture. Here, we investigate the scalability of the MPI-OPenMP hybrid models (CFS, GFS) and the limitations of hybrid spectral models when going to high resolutions. Also, this paper looks into the performance and scaling with these two models (CFS, GFS) on the TeraFLOP cluster, varying the threads and describes the preliminary results for the high resolution simulations.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright of this article belongs to IEEE.
Uncontrolled Keywords: Atmospheric components; CFS; Climate prediction; Climate simulation; GFS; High resolution simulations; Multicore architectures; profiling, Application programming interfaces (API); Climatology; Cluster computing; Scalability; Software architecture, Computer simulation
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 07 Jun 2014 08:30
Last Modified: 07 Jun 2014 08:30

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