We also verified that Allegro can very efficiently simulate larger length scales, and found that that system sizes as large as a 5 × 5 × 5 supercell (containing ∼ 34 × 10 3 atoms) can be computed easily. The local structural properties are -as expected -identical for different system sizes for a number of systems (see Figure ) and therefore we report here results for (2 × 2 × 2) supercells.