Does torch.utils.tensorboard need installation of Tensorflow?
I'm new to pytorch and I wonder if using tensorboard on pytorch needs tensorflow as a dependency. Moreover, except for tensorboard, what are other options for training curve visualization?

Indeed tensorboard is part of tensorflow, but it does not depend on it.
You can safely install only tensorboard (e.g, pip install tensorboard) or conda install -c conda-forge tensorboard) and use torch.utils.tensorboard.
