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GTC ON-DEMAND

Climate, Weather & Ocean Modeling
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Development, Parallelization and Performance of the NIM Next-Generation Weather Model on Titan
Abstract:
The Non-hydrostatic Icosahedral Model (NIM) is a next-generation global weather model being developed at NOAA to improve 0-100 day weather predictions. Since development began in 2008, the model has been designed to run on highly parallel computer architectures such as GPUs. GPU parallelization has relied on the directive-based Fortran-to-CUDA ACCelerator (F2C-ACC) compiler developed at NOAA. Recent work has focused on parallelization of model physics, evaluating the openACC compilers, and preparing the model to run at the full 3.5KM resolution on 5000 nodes of Titan. This talk will report on the development of the NIM model, describe our efforts to improve parallel performance on Titan, and report on our experiences using the openACC compilers.
 
Topics:
Climate, Weather & Ocean Modeling
Type:
Talk
Event:
GTC Silicon Valley
Year:
2014
Session ID:
S4157
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