Title :
Profiling and scalability of the high resolution NCEP model for weather and climate simulations
Author :
Phani, R. ; Sahai, A.K. ; Suryachandra Rao, A. ; Smd, J.
Author_Institution :
Indian Inst. of Tropical Meteorol., Pune, India
Abstract :
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.
Keywords :
climatology; geophysics computing; meteorology; multiprocessing systems; weather forecasting; IBM Power6 architecture; MPI-OPenMP hybrid models; NCEP Climate Forecast System; TeraFLOP cluster; atmospheric component; climate predictions; climate simulations; coupled climate modeling; high resolution NCEP model profiling; high resolution NCEP model scalability; high resolution simulations; hybrid spectral models; multicore architectures; weather simulations; CFS; GFS; profiling; scalability;
Conference_Titel :
High Performance Computing (HiPC), 2012 19th International Conference on
Conference_Location :
Pune
Print_ISBN :
978-1-4673-2372-7
Electronic_ISBN :
978-1-4673-2370-3
DOI :
10.1109/HiPC.2012.6507526
