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"""
:mod:`torch.distributed.optim` exposes DistributedOptimizer, which takes a list
of remote parameters (:class:`~torch.distributed.rpc.RRef`) and runs the
optimizer locally on the workers where the parameters live. The distributed
optimizer can use any of the local optimizer :ref:`optimizer-algorithms` to
apply the gradients on each worker.
"""
import torch
from torch import optim
from .functional_adagrad import _FunctionalAdagrad
from .functional_adam import _FunctionalAdam
from .functional_adamw import _FunctionalAdamW
from .functional_sgd import _FunctionalSGD
from .functional_adadelta import _FunctionalAdadelta
from .functional_rmsprop import _FunctionalRMSprop
from .functional_rprop import _FunctionalRprop
from .functional_adamax import _FunctionalAdamax
from .utils import as_functional_optim
# DistributedOptimizer imports torch.distributed.rpc names, so gate availability
# based on RPC being available.
if hasattr(torch._C, '_rpc_init'):
from .optimizer import DistributedOptimizer
from .post_localSGD_optimizer import PostLocalSGDOptimizer
from .zero_redundancy_optimizer import ZeroRedundancyOptimizer
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