Nope, not a lot of memcpy....mostly zero copy, in-place allocation, etc.. It's now a pet project so the code base is steadily expanding, it's actually a bit in flux (code, not the API) since I'm porting to Windows as well, so please excuse the mess. Feel free to use it, seems most of the users interested so far want it for search, or OpenCV. I'm kindof shocked there are as many people using it as there are since I've yet to add back in the multi-node support (I'm building in container support for remote node exec, and re-writing undergrad produced research code).