This is a slightly dodgy gravity simulator written using CUDA.

This project contains three different applications:

This is the main simulator, it expects an initial.ibin file in it's current directory and generates <epoch number>.bin files in the output directory it creates, it is the only application that requires CUDA.

This is the viewer application, it takes the <epoch number>.bin files that cudagravity_sim creates and shows them on the screen via SDL.

Currently these are the available keys:

This generates the initial.ibin file required by cudagravity_sim, it has three modes:

In this mode you pass in the number of particles you want and it generates N random particles and writes those to a file

This reads the yaml file that you specify to generate the initial file (see generate_initial/sample.yaml) for an example

This opens a pygame based editor application, it's very simple but it works, you just click to create a particle and add velocity to it by dragging your mouse cursor