How to view the number of iterations？

[Zeng-Fan-Yi]

I don't quite understand what you mean by 300k iterations. I ran on the 2060 GPU for nearly 30 hours, and the epoch only reached 1. The psnr reached 31.50. The file I finally got was “epoch=1-step=72499.ckpt”. Should I understand this as one iteration or 72500 iterations?