Analysing the Scalability of Climate Codes Using New Features of Scalasca

• Main Authors: Harlacher, M., Calotoiu, A., Dennis, J., Wolf, F.
• Format: Conference Object
• Language: English
• Published: Forschungszentrum Jülich GmbH, Zentralbibliothek 2016
• Subjects: Sea ice
• Online Access: https://juser.fz-juelich.de/record/516013; https://juser.fz-juelich.de/search?p=id:%22FZJ-2016-02090%22

This paper shows how recently developed features of the performance analysis tool Scalasca helped gain important insights into the performance behaviour of state-of-the-art climate codes in the CESM (Community Earth System Model) ensemble. Particular emphasis is given to the load balance of the sea-ice model and the scaling behaviour of the atmospheric model. The presented work is a result of the project Enabling Climate Simulation at Extreme Scale, which has been funded through the G8 Research Councils Initiative on Multilateral Research Funding.