CEEC exascale lighthouse cases and their needs

Summary
At the end of Phase 1 “Requirements”, this report documents the established resolution requirements in all dimensions; established number of grid points / DOF; Estimates for memory consumption, bandwidth requirements, I/O needs; Established parallelization status, identified target HPC architecture and needs; Definition of current code status and steps towards exascale readinessFurthermore, opportunities for exploiting synergies between the development of the different codes during the project will be described