I suspect that the runtime simulation for a star systems containing thousands of stars , many of those stars whose mass is way beyond the solar mass to be very very long. Is it possible and cost-friendly(i.e, not expensive) to simulate a globular star system cluster over a supermassive black hole on Fortran? This is the topic I am playing around with ; I am also thinking of maybe just simulating a binary redgiant star system over a black hole . But I haven't really seen many papers on Red giant star that orbit around black holes. I am in the physics department and so have access to the appropriate computers to run such simulations.