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Source code for torch.distributed


import torch
import sys


[docs]def is_available(): """ Returns ``True`` if the distributed package is available. Otherwise, ``torch.distributed`` does not expose any other APIs. Currently, ``torch.distributed`` is available on Linux, MacOS and Windows. Set ``USE_DISTRIBUTED=1`` to enable it when building PyTorch from source. Currently, the default value is ``USE_DISTRIBUTED=1`` for Linux and Windows, ``USE_DISTRIBUTED=0`` for MacOS. """ return hasattr(torch._C, "_c10d_init")
if is_available() and not torch._C._c10d_init(): raise RuntimeError("Failed to initialize torch.distributed") if is_available(): from torch._C._distributed_c10d import ( Store, FileStore, ProcessGroup, Reducer, BuiltinCommHookType, _DEFAULT_FIRST_BUCKET_BYTES, _GradBucket, _register_comm_hook, _register_builtin_comm_hook, _broadcast_coalesced, _compute_bucket_assignment_by_size, _test_python_store, ) if sys.platform != 'win32': from torch._C._distributed_c10d import ( TCPStore, HashStore, _round_robin_process_groups, ) from .distributed_c10d import * # Variables prefixed with underscore are not auto imported # See the comment in `distributed_c10d.py` above `_backend` on why we expose # this. from .distributed_c10d import _backend

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