CFD++ scales well to very large number of cores. The scalability improvements are universallly applied to all modern HPC platforms from all vendors. Tests have shown effective performance all the way up to 4096 cores (a current arbitrary internal limit that can be changed upwards) Even with relatively small grids (e.g. 16 million cells) CFD++ scales very well to 2048 or even 4096 cores. Below the vertical scale indicates units of 64 cores.