A test of the new ocean tools in Houdini 12.5.
Not sure of the simulation time per frame, however it was much shorter than the mesh generation time. This was all simulated on a mac book pro. The main limiting factor was the laptops 16GB of ram rather than the actual simulation time which was pretty really quick.
Particle separation: 0.1
Ocean size: 40x40
FLIP ocean particle count: 24m
White water particle count ~7m
~Mesh generation time: 7-10 min per frame