Challenges for Climate and Weather Prediction in the Era of Exascale Computer Architectures: Oscillatory Stiffness, Time-Parallelism, and the Role of Long-Time Dynamics - (PPT)

摘要

Ocean models (climate, weather) & HPC in the next decade ACME, ESCAPE, NextGenIO, ESiWACE, UK Met Office - Gung Ho, ECMWF, etc. Implications for physics with oscillatory and dissipative stiffness (including numerical models of weather and climate). Introduction to disruptive algorithms: time-parallelism: Some examples: RDIC, results for the time-parallel matrix exponential (REXI), Parareal. Mathematics underpinning the algorithms: oscillatory and dissipative stiffness. Final thoughts.