If at all, this applies only to profs, which is a tiny subset of researchers and insanely hard to get into. Everyone else is paid shit and 80+% depend on grants. Source: am researcher
Matrix multiplication should be the other way around, i.e. not like cascading functions. Oh and function cabbages should also be the other way around :) i prefer to read it not like a manga
Apply for compute time at a university cluster. It is free and usually easy.