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# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
"""isort:skip_file"""
import importlib
import os
from fairseq import registry
from fairseq.optim.bmuf import FairseqBMUF # noqa
from fairseq.optim.fairseq_optimizer import ( # noqa
FairseqOptimizer,
LegacyFairseqOptimizer,
)
from fairseq.optim.amp_optimizer import AMPOptimizer
from fairseq.optim.fp16_optimizer import FP16Optimizer, MemoryEfficientFP16Optimizer
from fairseq.optim.shard import shard_
from omegaconf import DictConfig
__all__ = [
"AMPOptimizer",
"FairseqOptimizer",
"FP16Optimizer",
"MemoryEfficientFP16Optimizer",
"shard_",
]
(
_build_optimizer,
register_optimizer,
OPTIMIZER_REGISTRY,
OPTIMIZER_DATACLASS_REGISTRY,
) = registry.setup_registry("--optimizer", base_class=FairseqOptimizer, required=True)
def build_optimizer(cfg: DictConfig, params, *extra_args, **extra_kwargs):
if all(isinstance(p, dict) for p in params):
params = [t for p in params for t in p.values()]
params = list(filter(lambda p: p.requires_grad, params))
return _build_optimizer(cfg, params, *extra_args, **extra_kwargs)
# automatically import any Python files in the optim/ directory
for file in sorted(os.listdir(os.path.dirname(__file__))):
if file.endswith(".py") and not file.startswith("_"):
file_name = file[: file.find(".py")]
importlib.import_module("fairseq.optim." + file_name)
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