If what you are simulating is a physical system, then to verify it you only need to replicate the physical system, not rerun the simulation on another device.

If what you are simulating is a physical system, then to verify it you only need to replicate the physical system, not rerun the simulation on another device. I suggested simulating the experiment of n molecules in a vacuum, another experiment might be a chaotic system like a double pendulum. Although there would need to be a high level of precision in setting up the physical parameters of the experiment.