JUNE 19–23, 2016

Presentation Details

Name: Towards Extreme-Scale Weather/Climate Simulation: The Post K Supercomputer & Our Challenges
Time: Tuesday, June 21, 2016
11:55 am - 12:20 pm
Room:   Panorama 1
Messe Frankfurt
Speaker:   Hisashi Yashiro, RIKEN AICS
Abstract:   The K computer, current flagship supercomputer in Japan, enabled more larger scale of atmospheric simulations. The first global 870m simulation with 63 billion grids is one example which showed the capability of this system. Currently, the next flagship supercomputer is being designed toward general operation in 2020. The system needs to satisfy constraints of electricity and cost, and also to maximize the performance of many real-world applications. The "co-design" effort for designs of this system is regarded as important in a project. In this talk, brief introduction of the system and co-design items in the post K project are presented. The weather/climate studies for disaster prevention and mitigation are placed in one of nine “priority research area” to be exploited in the post K system. In this research studies, the simulations with high resolution and/or large ensemble sizes are integrated with the data assimilation systems using large number of observation data. By introducing our efforts for NICAM+LETKF, which is one of the proxy applications, the problems in the large-scale weather/climate simulation are pointed out.