I think you mean at a low enough level and jumping to that generality doesn't make sense here. The same could be said for splitting a bunch of threads off with

I think you mean at a low enough level and jumping to that generality doesn't make sense here. The same could be said for splitting a bunch of threads off with opemMP. It isn't about divergence, it is about data dependencies, data owership and synchronization, which are all the same in both scenarios.