It seems that all_gather_object from torch.distributed is available since torch 1.7.0 version. (Not available with the minimum versions (1.6.x) of requirements.py)
Thanks for checking it out.
@lbjcom @hsss Thank you so much for your reply :-)
I made a PR.
(This dependency issue seems to cause an error when evaluation during ddp training in torch 1.6.0 version.)
It seems that all_gather_object from torch.distributed is available since torch 1.7.0 version. (Not available with the minimum versions (1.6.x) of requirements.py) Thanks for checking it out.