[BE] remove deprecated attributes from distributed_c10d (#105753)
Removing these attributes as they were introduced 5 years ago and before pytorch 1.0. `Backend` is the only support use now.
Differential Revision: [D47683717](https://our.internmc.facebook.com/intern/diff/D47683717)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/105753
Approved by: https://github.com/rohan-varma
diff --git a/torch/distributed/__init__.py b/torch/distributed/__init__.py
index 2e0e7ac..c44d2fa 100644
--- a/torch/distributed/__init__.py
+++ b/torch/distributed/__init__.py
@@ -62,7 +62,6 @@
# this.
from .distributed_c10d import (
- _backend,
_all_gather_base,
_reduce_scatter_base,
_create_process_group_wrapper,
diff --git a/torch/distributed/distributed_c10d.py b/torch/distributed/distributed_c10d.py
index 93c7075..0f2cbc7 100644
--- a/torch/distributed/distributed_c10d.py
+++ b/torch/distributed/distributed_c10d.py
@@ -43,7 +43,7 @@
'all_reduce_coalesced', 'all_reduce_multigpu', 'all_to_all',
'all_to_all_single', 'barrier', 'batch_isend_irecv', 'broadcast',
'broadcast_multigpu', 'broadcast_object_list', 'destroy_process_group',
- 'dist_backend', 'gather', 'gather_object', 'get_backend_config', 'get_backend', 'get_rank',
+ 'gather', 'gather_object', 'get_backend_config', 'get_backend', 'get_rank',
'get_world_size', 'group', 'init_process_group', 'irecv',
'is_gloo_available', 'is_initialized', 'is_mpi_available', 'is_backend_available',
'is_nccl_available', 'is_torchelastic_launched', 'is_ucc_available',
@@ -313,13 +313,6 @@
def get_device_backend_map(self):
return self.device_backend_map
-# `_backend`, `dist_backend`, and `reduce_op` are here to maintain backward
-# compatibility with pre-c10d distributed package.
-# TODO: remove them when users are ready to take a hard dependency on PyTorch 1.
-_backend: str = Backend.UNDEFINED
-dist_backend = Backend
-
-
class _reduce_op:
r"""
Deprecated enum-like class for reduction operations: ``SUM``, ``PRODUCT``,
