Is cuda/any gpu needed

[Rhysjosmin]

Do i need to have cuda or any other gpu to run this or can i do it only with a cpu?

[drebain]

Yes, the solver implementation here is set up to require CUDA, as the simulation would probably not be real-time on a CPU. That said, the code uses Thrust to launch the GPU kernels, and could probably be modified to run on CPU.