How long does it take to train?

[peng666]

How long does it take to train? I train PCN about 3 epochs a day.

[paul007pl]

I remember that it should take around a few hours for training pcn (2048pts, 100 epochs, with CD loss).
I would like to suggest that you can discard the emd loss evaluation (very slow, especially for high resolution), which can help you save time.
Good Luck~

[peng666]

But I've trained with CD as a loss function, still 3 epochs a day. I'm using a dense point cloud (16384 points). Is there any mistake here?

[paul007pl]

I know you are using CD for training, but please check if you still evaluate the emd loss during training.
It is reasonable that you should take a longer time for training with 16384 points.
If I did not remember wrongly, it takes around 1 day for training PCN (16384 points, CD loss, 100 epochs) with a V100 GPU.
I suggest that you can try 2048 first. (I also did in this way...)
If your method works better than the others on 2048 pts, it should probably outperform the others on 16384 pts also.

[peng666]

Your suggestion is very good. Thank you very much！