| import torch.distributed as dist | |
| def is_dist_avail_and_initialized(): | |
| if not dist.is_available(): | |
| return False | |
| if not dist.is_initialized(): | |
| return False | |
| return True | |
| def get_rank(): | |
| if not is_dist_avail_and_initialized(): | |
| return 0 | |
| return dist.get_rank() | |
| def is_main_process(): | |
| return get_rank() == 0 | |