I run my process in single computor have the problem:
RuntimeError: The server socket has failed to listen on any local network address. The server socket has failed to bind to [::]:29500 (errno: 98 - Address already in use). The server socket has failed to bind to 0.0.0.0:29500 (errno: 98 - Address already in use).
the run commond is horovodrun -np 2 -H localhost:2 -p 12345 python -m torch.distributed.launch --nproc_per_node 2 train.py
But i run the officia example pytorch_mnist.py don’t have that problem.