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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 9, issue 6
Geosci. Model Dev., 9, 2099–2113, 2016
https://doi.org/10.5194/gmd-9-2099-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Model infrastructure integration and interoperability (MI3)

Geosci. Model Dev., 9, 2099–2113, 2016
https://doi.org/10.5194/gmd-9-2099-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Development and technical paper 09 Jun 2016

Development and technical paper | 09 Jun 2016

A new adaptive data transfer library for model coupling

Cheng Zhang et al.

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Cited articles

Armstrong, C. W., Ford, R. W., and Riley, G. D.: Coupling integrated Earth System Model components with BFG2, Concurrency and Computation: Practice and Experience, 21, 767–791, https://doi.org/10.1002/cpe.1348, 2009.
Balaji, V., Anderson, J., Held, I., Winton, M., Durachta, J., Malyshev, S., and Stouffer, R. J.: The Exchange Grid: a mechanism for data exchange between Earth system components on independent grids, in: Parallel Computational Fluid Dynamics 2005 Theory and Applications, 179–186, https://doi.org/10.1016/B978-044452206-1/50021-5, 2006.
Chong, F. T. and Brewer, E. A.: Packaging and multiplexing of hierarchical scalable expanders, Parallel Computer Routing and Communication, Springer Berlin Heidelberg, 200–214, 1994.
Craig, A. P., Jacob, R., Kauffman, B., Bettge, T., Larson, J., Ong, E., Ding, C., and He, Y.: CPL6: the New Extensible, High Performance Parallel Coupler for the Community Climate System Model, Int. J. High Perform. C., 19, 309–327, 2005.
Craig, A. P., Vertenstein, M., and Jacob, R.: A new flexible coupler for Earth system modelling developed for CCSM4 and CESM1, Int. J. High Perform. C., 26, 31–42, https://doi.org/10.1177/1094342011428141, 2012.
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We propose a butterfly implementation for data transfer. Although the butterfly implementation outperforms the existing implementation (the P2P implementation) in many cases, it degrades the performance in some cases. So we design and implement an adaptive data transfer library that automatically chooses an optimal implementation between the P2P one and the butterfly one and also further improves the performance based on the butterfly implementation through skipping some butterfly stages.
We propose a butterfly implementation for data transfer. Although the butterfly implementation...
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