Question about the output figures

[hu-lm]

Hi,
I am writing this discussion because I have a question when looking at the output figure,

Here there are six lines. I understand that rmse_e_trn/val and rmse_f_trn/val stand for loss for energy and force, but what are rmse_val/trn represent for (the upper two lines)? Thank you so much!

[njzjz]

It's the root of the total loss. The equation of the total loss can be found in this paper (Eq. 3).