Scalability on pre-exascale EuroHPC systems

Summary
Discuss challenges encountered when porting the models of task 11 to the new supercomputing systems Discuss scalability of all models when running on the new systems with different horizontal resolution Extrapolate performance and data requirements to exascale and discuss potential resolutions that could be realised on future exascale machines when perfect scalability is assumed Due at month 50 PU R Lead DKRZ