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Issue No.04 - July/August (2010 vol.12)
pp: 26-33
Rory Kelly , NCAR, Boulder
Much success has been achieved using GPUs to accelerate existing applications that are highly data parallel, or that are dominated by small, intense computational kernels. What are the prospects for porting existing large scientific models that do not fit this mold? We take an expensive routine from the CAM atmosphere model, and port it to a GPU using CUDA. We use the experience gained as a guide in thinking about porting the full application to an accelerator based system. We consider the best path forward for getting large scientific models running on accelerator based systems, and identify cases where porting may be feasible, and where a complete redesign may be the best option.
emerging technologies, threads, graphics processors, computations on discrete structures
Rory Kelly, "GPU Computing for Atmospheric Modeling", Computing in Science & Engineering, vol.12, no. 4, pp. 26-33, July/August 2010, doi:10.1109/MCSE.2010.26
1. D. Göddeke et al., "GPU Acceleration of an Unmodified Parallel Finite Element Navier-Stokes Solver," W.W. Smari, and J.P. McIntire eds., High Performance Computing & Simulation, Logos Verlag, 2009, pp. 12–21.
2. J.C. Thibault, and I. Senocak, "CUDA Implementation of a Navier-Stokes Solver on Multi-GPU Desktop Platforms for Incompressible Flows," Proc. 47th AIAA Aerospace Sciences Meeting, Am. Inst. Aeronautics and Astronautics, 2009, paper no. AIAA 2009-758.
3. V. Simek et al., "Towards Accelerated Computation of Atmospheric Equations Using CUDA," Proc. 11th Int'l Conf. Modelling and Simulation, IEEE CS Press, 2009; pp. 449–454; UKSIM.2009.25.
4. J. Michalakes and M. Vachharajani, "GPU Acceleration of Numerical Weather Prediction," Parallel Processing Letters, vol. 18, no. 4, 2008, pp. 531–548.
5. W.D. Collins et al., "The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3)," J. Climate, vol. 19, no. 11, 2006, pp. 2144–2161.
6. W.D. Collins et al., "The Community Climate System Model Version 3 (CCSM3)," J. Climate, vol. 19, no. 11, 2006, pp. 2122–2143.
7. B.P. Briegleb, "Delta-Eddington Approximation for Solar Radiation in the NCAR Community Climate Model," J. Geophysical Research, vol. 97, no. D7, 1992, pp. 7603–7612.
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