Now I remember reading a blog post recently, about an Areta library (one of the rust ones maybe?) that were doing both: array-of-struct-of-array.

The idea was to split the main arrays up into “chunks” that were structs, themselves containing rows of data (still array oriented).

The idea was that you retain the cache/layout/performance benefits of SoA layout, except each chunk is already packaged up into lengths ready for pushing through SIMD. Quite a clever idea.

Found it: https://www.rustsim.org/blog/2020/03/23/simd-aosoa-in-nalgeb...