Question about the training time on DTU

[yulunwu0108]

Hello, First of all, thanks for your excellent work and code release! When I was trying to repeat the experiments with the given docker environment on my local workstation (a single RTX 3090), I noticed that the training process (20w iters with default hyper-params) on a single DTU scan (dtu_scan24) took about 90mins to complete, which is much longer than the officially claimed training time in the paper conclusion part ($\approx$ 30mins). I'm curious if it was normal. Was it out of that the default parameters in the code were not the same as the parameters you used to measure the training time, or was it for some other reason? I'll be appreciate to get the answer.