Cpl6: The New Extensible, High-Performance Parallel Coupler forthe Community Climate System Model
Coupled climate models are large, multiphysics applications designed to simulate the Earth's climate and predict the response of the climate to any changes in the forcing or boundary conditions. The Community Climate System Model (CCSM) is a widely used state-of-art climate model that has released several versions to the climate community over the past ten years. Like many climate models, CCSM employs a coupler, a functional unit that coordinates the exchange of data between parts of climate system such as the atmosphere and ocean. This paper describes the new coupler, cpl6, contained in the latest version of CCSM,CCSM3. Cpl6 introduces distributed-memory parallelism to the coupler, a class library for important coupler functions, and a standardized interface for component models. Cpl6 is implemented entirely in Fortran90 and uses Model Coupling Toolkit as the base for most of its classes. Cpl6 gives improved performance over previous versions and scales well on multiple platforms.
- Research Organization:
- Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of Biological andEnvironmental Research. Climate Change Prediction Program, AcceleratedClimate Prediction Initiative, Scientific Discovery Through AdvancedComputingW-31-109-ENG-38; National Science Foundation ContractATM-0404790
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 877631
- Report Number(s):
- LBNL--58387; BnR: KP1201010
- Journal Information:
- International Journal of High Performance Computing Applications, Journal Name: International Journal of High Performance Computing Applications Journal Issue: 3 Vol. 19
- Country of Publication:
- United States
- Language:
- English
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