Articles | Volume 15, issue 14
https://doi.org/10.5194/gmd-15-5739-2022
https://doi.org/10.5194/gmd-15-5739-2022
Model description paper
 | 
25 Jul 2022
Model description paper |  | 25 Jul 2022

swNEMO_v4.0: an ocean model based on NEMO4 for the new-generation Sunway supercomputer

Yuejin Ye, Zhenya Song, Shengchang Zhou, Yao Liu, Qi Shu, Bingzhuo Wang, Weiguo Liu, Fangli Qiao, and Lanning Wang

Data sets

Data for swNEMO_v4.0 in GMD Y. Ye, Z. Song, S. Zhou, Y. Liu, Q. Shu, B. Wang, W. Liu, F. Qiao, and L. Wang https://doi.org/10.5281/zenodo.6834799

Model code and software

swNEMO(4.0) Yuejin Ye, Zhenya Song, Shengchang Zhou, Yao Liu, Qi Shu, Bingzhuo Wang, Weiguo Liu, Fangli Qiao, Lanning Wang https://doi.org/10.5281/zenodo.5976033

Download
Short summary
The swNEMO_v4.0 is developed with ultrahigh scalability through the concepts of hardware–software co-design based on the characteristics of the new Sunway supercomputer and NEMO4. Three breakthroughs, including an adaptive four-level parallelization design, many-core optimization and mixed-precision optimization, are designed. The simulations achieve 71.48 %, 83.40 % and 99.29 % parallel efficiency with resolutions of 2 km, 1 km and 500 m using 27 988 480 cores, respectively.