Thanks a lot for your suggestions last time!
Well, actually I'm looking at the nearshore wave breaking and propagation process in some areas of interest, and feel Celeris did better than SCHISM, the model we used before, which can't calculate the wave generated by plunging waves. However, to balance the resolution and timestep when input a long wave, it took much time to run (time ratio = 0.02). So... I'm curious that if it's possible to run without visualization? (It might not be a reasonable question, since Celeris is designed for visualization. ^v^|||)