chore: import upstream snapshot with attribution

This commit is contained in:
wehub-resource-sync
2026-07-13 13:24:13 +08:00
commit 1037506f2e
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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.
from .configs import FairseqDataclass
from .constants import ChoiceEnum
__all__ = [
"FairseqDataclass",
"ChoiceEnum",
]
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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.
import sys
from dataclasses import _MISSING_TYPE, dataclass, field
from typing import Any, List, Optional
import torch
from fairseq.dataclass.constants import (
DATASET_IMPL_CHOICES,
DDP_BACKEND_CHOICES,
GENERATION_CONSTRAINTS_CHOICES,
GENERATION_DECODING_FORMAT_CHOICES,
LOG_FORMAT_CHOICES,
PIPELINE_CHECKPOINT_CHOICES,
PRINT_ALIGNMENT_CHOICES,
ZERO_SHARDING_CHOICES,
)
from omegaconf import II, MISSING
@dataclass
class FairseqDataclass:
"""fairseq base dataclass that supported fetching attributes and metas"""
_name: Optional[str] = None
@staticmethod
def name():
return None
def _get_all_attributes(self) -> List[str]:
return [k for k in self.__dataclass_fields__.keys()]
def _get_meta(
self, attribute_name: str, meta: str, default: Optional[Any] = None
) -> Any:
return self.__dataclass_fields__[attribute_name].metadata.get(meta, default)
def _get_name(self, attribute_name: str) -> str:
return self.__dataclass_fields__[attribute_name].name
def _get_default(self, attribute_name: str) -> Any:
if hasattr(self, attribute_name):
if str(getattr(self, attribute_name)).startswith("${"):
return str(getattr(self, attribute_name))
elif str(self.__dataclass_fields__[attribute_name].default).startswith(
"${"
):
return str(self.__dataclass_fields__[attribute_name].default)
elif (
getattr(self, attribute_name)
!= self.__dataclass_fields__[attribute_name].default
):
return getattr(self, attribute_name)
f = self.__dataclass_fields__[attribute_name]
if not isinstance(f.default_factory, _MISSING_TYPE):
return f.default_factory()
return f.default
def _get_type(self, attribute_name: str) -> Any:
return self.__dataclass_fields__[attribute_name].type
def _get_help(self, attribute_name: str) -> Any:
return self._get_meta(attribute_name, "help")
def _get_argparse_const(self, attribute_name: str) -> Any:
return self._get_meta(attribute_name, "argparse_const")
def _get_argparse_alias(self, attribute_name: str) -> Any:
return self._get_meta(attribute_name, "argparse_alias")
def _get_choices(self, attribute_name: str) -> Any:
return self._get_meta(attribute_name, "choices")
@dataclass
class CommonConfig(FairseqDataclass):
# This is the core dataclass including common parameters shared by all different jobs. Please append your params to other dataclasses if they were
# used for a particular purpose or task, such as those dedicated for `distributed training`, `optimization`, etc.
no_progress_bar: bool = field(
default=False, metadata={"help": "disable progress bar"}
)
log_interval: int = field(
default=100,
metadata={
"help": "log progress every N batches (when progress bar is disabled)"
},
)
log_format: Optional[LOG_FORMAT_CHOICES] = field(
default=None, metadata={"help": "log format to use"}
)
tensorboard_logdir: Optional[str] = field(
default=None,
metadata={
"help": "path to save logs for tensorboard, should match --logdir "
"of running tensorboard (default: no tensorboard logging)"
},
)
wandb_project: Optional[str] = field(
default=None,
metadata={
"help": "Weights and Biases project name to use for logging"
},
)
azureml_logging: Optional[bool] = field(
default=False,
metadata={
"help": "Log scalars to AzureML context"
},
)
seed: int = field(
default=1, metadata={"help": "pseudo random number generator seed"}
)
cpu: bool = field(default=False, metadata={"help": "use CPU instead of CUDA"})
tpu: bool = field(default=False, metadata={"help": "use TPU instead of CUDA"})
bf16: bool = field(default=False, metadata={"help": "use bfloat16; implies --tpu"})
memory_efficient_bf16: bool = field(
default=False,
metadata={
"help": "use a memory-efficient version of BF16 training; implies --bf16"
},
)
fp16: bool = field(default=False, metadata={"help": "use FP16"})
memory_efficient_fp16: bool = field(
default=False,
metadata={
"help": "use a memory-efficient version of FP16 training; implies --fp16"
},
)
fp16_no_flatten_grads: bool = field(
default=False, metadata={"help": "don't flatten FP16 grads tensor"}
)
fp16_init_scale: int = field(
default=2 ** 7, metadata={"help": "default FP16 loss scale"}
)
fp16_scale_window: Optional[int] = field(
default=None,
metadata={"help": "number of updates before increasing loss scale"},
)
fp16_scale_tolerance: float = field(
default=0.0,
metadata={
"help": "pct of updates that can overflow before decreasing the loss scale"
},
)
min_loss_scale: float = field(
default=1e-4,
metadata={"help": "minimum FP16 loss scale, after which training is stopped"},
)
threshold_loss_scale: Optional[float] = field(
default=None, metadata={"help": "threshold FP16 loss scale from below"}
)
user_dir: Optional[str] = field(
default=None,
metadata={
"help": "path to a python module containing custom extensions (tasks and/or architectures)"
},
)
empty_cache_freq: int = field(
default=0,
metadata={"help": "how often to clear the PyTorch CUDA cache (0 to disable)"},
)
all_gather_list_size: int = field(
default=16384,
metadata={"help": "number of bytes reserved for gathering stats from workers"},
)
model_parallel_size: int = field(
default=1, metadata={"help": "total number of GPUs to parallelize model over"}
)
quantization_config_path: Optional[str] = field(
default=None, metadata={"help": "path to quantization config file"}
)
profile: bool = field(
default=False, metadata={"help": "enable autograd profiler emit_nvtx"}
)
reset_logging: bool = field(
default=False,
metadata={
"help": "when using Hydra, reset the logging at the beginning of training"
},
)
suppress_crashes: bool = field(
default=False,
metadata={
"help": "suppress crashes when training with the hydra_train entry point so that the "
"main method can return a value (useful for sweeps)"
},
)
@dataclass
class DistributedTrainingConfig(FairseqDataclass):
distributed_world_size: int = field(
default=max(1, torch.cuda.device_count()),
metadata={
"help": "total number of GPUs across all nodes (default: all visible GPUs)"
},
)
distributed_rank: Optional[int] = field(
default=0, metadata={"help": "rank of the current worker"}
)
distributed_backend: str = field(
default="nccl", metadata={"help": "distributed backend"}
)
distributed_init_method: Optional[str] = field(
default=None,
metadata={
"help": "typically tcp://hostname:port that will be used to "
"establish initial connetion"
},
)
distributed_port: int = field(
default=-1,
metadata={
"help": "port number (not required if using --distributed-init-method)"
},
)
device_id: int = field(
default=0,
metadata={
"help": "which GPU to use (usually configured automatically)",
"argparse_alias": "--local_rank",
},
)
distributed_no_spawn: bool = field(
default=False,
metadata={
"help": "do not spawn multiple processes even if multiple GPUs are visible"
},
)
ddp_backend: DDP_BACKEND_CHOICES = field(
default="pytorch_ddp", metadata={"help": "DistributedDataParallel backend"}
)
bucket_cap_mb: int = field(
default=25, metadata={"help": "bucket size for reduction"}
)
fix_batches_to_gpus: bool = field(
default=False,
metadata={
"help": "don't shuffle batches between GPUs; this reduces overall "
"randomness and may affect precision but avoids the cost of re-reading the data"
},
)
find_unused_parameters: bool = field(
default=False,
metadata={
"help": "disable unused parameter detection (not applicable to "
"--ddp-backend=legacy_ddp)"
},
)
fast_stat_sync: bool = field(
default=False,
metadata={"help": "[deprecated] this is now defined per Criterion"},
)
heartbeat_timeout: int = field(
default=-1,
metadata={
"help": "kill the job if no progress is made in N seconds; "
"set to -1 to disable"
}
)
broadcast_buffers: bool = field(
default=False,
metadata={
"help": "Copy non-trainable parameters between GPUs, such as "
"batchnorm population statistics"
},
)
slowmo_momentum: Optional[float] = field(
default=None,
metadata={
"help": "SlowMo momentum term; by default use 0.0 for 16 GPUs, "
"0.2 for 32 GPUs; 0.5 for 64 GPUs, 0.6 for > 64 GPUs"
},
)
slowmo_algorithm: str = field(
default="LocalSGD", metadata={"help": "whether to use LocalSGD or SGP"}
)
localsgd_frequency: int = field(
default=3, metadata={"help": "Local SGD allreduce frequency"}
)
nprocs_per_node: int = field(
default=max(1, torch.cuda.device_count()),
metadata={
"help": "number of GPUs in each node. An allreduce operation across GPUs in "
"a node is very fast. Hence, we do allreduce across GPUs in a node, "
"and gossip across different nodes"
},
)
pipeline_model_parallel: bool = field(
default=False,
metadata={"help": "if set, use pipeline model parallelism across GPUs"},
)
pipeline_balance: Optional[str] = field(
default=None,
metadata={
"help": "partition the model into N_K pieces, where each piece "
"contains N_i layers. The sum(args.pipeline_balance) "
"should equal the total number of layers in the model"
},
)
pipeline_devices: Optional[str] = field(
default=None,
metadata={
"help": "a list of device indices indicating which device to place "
"each of the N_K partitions. The length of this list should "
"equal the length of the --pipeline-balance argument"
},
)
pipeline_chunks: Optional[int] = field(
default=0, metadata={"help": "microbatch count for pipeline model parallelism"}
)
pipeline_encoder_balance: Optional[str] = field(
default=None,
metadata={
"help": "partition the pipeline parallel encoder into N_K pieces, where each piece "
"contains N_i layers. The sum(args.pipeline_encoder_balance) "
"should equal the total number of encoder layers in the model"
},
)
pipeline_encoder_devices: Optional[str] = field(
default=None,
metadata={
"help": "a list of device indices indicating which device to place "
"each of the N_K partitions. The length of this list should "
"equal the length of the --pipeline-encoder-balance argument"
},
)
pipeline_decoder_balance: Optional[str] = field(
default=None,
metadata={
"help": "partition the pipeline parallel decoder into N_K pieces, where each piece "
"contains N_i layers. The sum(args.pipeline_decoder_balance) "
"should equal the total number of decoder layers in the model"
},
)
pipeline_decoder_devices: Optional[str] = field(
default=None,
metadata={
"help": "a list of device indices indicating which device to place "
"each of the N_K partitions. The length of this list should "
"equal the length of the --pipeline-decoder-balance argument"
},
)
pipeline_checkpoint: PIPELINE_CHECKPOINT_CHOICES = field(
default="never",
metadata={"help": "checkpointing mode for pipeline model parallelism"},
)
zero_sharding: ZERO_SHARDING_CHOICES = field(
default="none", metadata={"help": "ZeRO sharding"}
)
tpu: bool = II("common.tpu")
@dataclass
class DatasetConfig(FairseqDataclass):
num_workers: int = field(
default=1, metadata={"help": "how many subprocesses to use for data loading"}
)
skip_invalid_size_inputs_valid_test: bool = field(
default=False,
metadata={"help": "ignore too long or too short lines in valid and test set"},
)
max_tokens: Optional[int] = field(
default=None, metadata={"help": "maximum number of tokens in a batch"}
)
batch_size: Optional[int] = field(
default=None,
metadata={
"help": "number of examples in a batch",
"argparse_alias": "--max-sentences",
},
)
required_batch_size_multiple: int = field(
default=8, metadata={"help": "batch size will be a multiplier of this value"}
)
required_seq_len_multiple: int = field(
default=1,
metadata={
"help": "maximum sequence length in batch will be a multiplier of this value"
},
)
dataset_impl: Optional[DATASET_IMPL_CHOICES] = field(
default=None, metadata={"help": "output dataset implementation"}
)
data_buffer_size: int = field(
default=10, metadata={"help": "Number of batches to preload"}
)
train_subset: str = field(
default="train",
metadata={"help": "data subset to use for training (e.g. train, valid, test)"},
)
valid_subset: str = field(
default="valid",
metadata={
"help": "comma separated list of data subsets to use for validation"
" (e.g. train, valid, test)"
},
)
validate_interval: int = field(
default=1, metadata={"help": "validate every N epochs"}
)
validate_interval_updates: int = field(
default=0, metadata={"help": "validate every N updates"}
)
validate_after_updates: int = field(
default=0, metadata={"help": "dont validate until reaching this many updates"}
)
fixed_validation_seed: Optional[int] = field(
default=None, metadata={"help": "specified random seed for validation"}
)
disable_validation: bool = field(
default=False, metadata={"help": "disable validation"}
)
max_tokens_valid: Optional[int] = field(
default=II("dataset.max_tokens"),
metadata={
"help": "maximum number of tokens in a validation batch"
" (defaults to --max-tokens)"
},
)
batch_size_valid: Optional[int] = field(
default=II("dataset.batch_size"),
metadata={
"help": "batch size of the validation batch (defaults to --batch-size)",
"argparse_alias": "--max-sentences-valid",
},
)
curriculum: int = field(
default=0, metadata={"help": "don't shuffle batches for first N epochs"}
)
gen_subset: str = field(
default="test",
metadata={"help": "data subset to generate (train, valid, test)"},
)
num_shards: int = field(
default=1, metadata={"help": "shard generation over N shards"}
)
shard_id: int = field(
default=0, metadata={"help": "id of the shard to generate (id < num_shards)"}
)
@dataclass
class OptimizationConfig(FairseqDataclass):
max_epoch: int = field(
default=0, metadata={"help": "force stop training at specified epoch"}
)
max_update: int = field(
default=0, metadata={"help": "force stop training at specified update"}
)
stop_time_hours: float = field(
default=0,
metadata={
"help": "force stop training after specified cumulative time (if >0)"
},
)
clip_norm: float = field(
default=0.0, metadata={"help": "clip threshold of gradients"}
)
sentence_avg: bool = field(
default=False,
metadata={
"help": "normalize gradients by the number of sentences in a batch"
" (default is to normalize by number of tokens)"
},
)
update_freq: List[int] = field(
default_factory=lambda: [1],
metadata={"help": "update parameters every N_i batches, when in epoch i"},
)
lr: List[float] = field(
default_factory=lambda: [0.25],
metadata={
"help": "learning rate for the first N epochs; all epochs >N using LR_N"
" (note: this may be interpreted differently depending on --lr-scheduler)"
},
)
stop_min_lr: float = field(
default=-1.0,
metadata={"help": "stop training when the learning rate reaches this minimum"},
)
use_bmuf: bool = field(
default=False,
metadata={
"help": "specify global optimizer for syncing models on different GPUs/shards"
},
)
@dataclass
class CheckpointConfig(FairseqDataclass):
save_dir: str = field(
default="checkpoints", metadata={"help": "path to save checkpoints"}
)
restore_file: str = field(
default="checkpoint_last.pt",
metadata={
"help": "filename from which to load checkpoint "
"(default: <save-dir>/checkpoint_last.pt"
},
)
finetune_from_model: Optional[str] = field(
default=None,
metadata={
"help": "finetune from a pretrained model; note that meters and lr scheduler will be reset"
},
)
reset_dataloader: bool = field(
default=False,
metadata={
"help": "if set, does not reload dataloader state from the checkpoint"
},
)
reset_lr_scheduler: bool = field(
default=False,
metadata={
"help": "if set, does not load lr scheduler state from the checkpoint"
},
)
reset_meters: bool = field(
default=False,
metadata={"help": "if set, does not load meters from the checkpoint"},
)
reset_optimizer: bool = field(
default=False,
metadata={"help": "if set, does not load optimizer state from the checkpoint"},
)
optimizer_overrides: str = field(
default="{}",
metadata={
"help": "a dictionary used to override optimizer args when loading a checkpoint"
},
)
save_interval: int = field(
default=1, metadata={"help": "save a checkpoint every N epochs"}
)
save_interval_updates: int = field(
default=0, metadata={"help": "save a checkpoint (and validate) every N updates"}
)
keep_interval_updates: int = field(
default=-1,
metadata={
"help": "keep the last N checkpoints saved with --save-interval-updates"
},
)
keep_last_epochs: int = field(
default=-1, metadata={"help": "keep last N epoch checkpoints"}
)
keep_best_checkpoints: int = field(
default=-1, metadata={"help": "keep best N checkpoints based on scores"}
)
no_save: bool = field(
default=False, metadata={"help": "don't save models or checkpoints"}
)
no_epoch_checkpoints: bool = field(
default=False, metadata={"help": "only store last and best checkpoints"}
)
no_last_checkpoints: bool = field(
default=False, metadata={"help": "don't store last checkpoints"}
)
no_save_optimizer_state: bool = field(
default=False,
metadata={"help": "don't save optimizer-state as part of checkpoint"},
)
best_checkpoint_metric: str = field(
default="loss", metadata={"help": 'metric to use for saving "best" checkpoints'}
)
maximize_best_checkpoint_metric: bool = field(
default=False,
metadata={
"help": 'select the largest metric value for saving "best" checkpoints'
},
)
patience: int = field(
default=-1,
metadata={
"help": (
"early stop training if valid performance doesn't "
"improve for N consecutive validation runs; note "
"that this is influenced by --validate-interval"
)
},
)
checkpoint_suffix: str = field(
default="", metadata={"help": "suffix to add to the checkpoint file name"}
)
checkpoint_shard_count: int = field(
default=1,
metadata={
"help": "Number of shards containing the checkpoint - "
"if the checkpoint is over 300GB, it is preferable "
"to split it into shards to prevent OOM on CPU while loading "
"the checkpoint"
},
)
load_checkpoint_on_all_dp_ranks: bool = field(
default=False,
metadata={
"help": "load checkpoints on all data parallel devices "
"(default: only load on rank 0 and broadcast to other devices)"
},
)
model_parallel_size: int = II("common.model_parallel_size")
distributed_rank: int = II("distributed_training.distributed_rank")
@dataclass
class FairseqBMUFConfig(FairseqDataclass):
block_lr: float = field(
default=1, metadata={"help": "block learning rate for bmuf"}
)
block_momentum: float = field(
default=0.875, metadata={"help": "block momentum for bmuf"}
)
global_sync_iter: int = field(
default=50, metadata={"help": "Iteration for syncing global model"}
)
warmup_iterations: int = field(
default=500, metadata={"help": "warmup iterations for model to broadcast"}
)
use_nbm: bool = field(
default=False,
metadata={"help": "Specify whether you want to use classical BM / Nesterov BM"},
)
average_sync: bool = field(
default=False,
metadata={
"help": "Specify whether you want to average the local momentum after each sync"
},
)
distributed_world_size: int = II("distributed_training.distributed_world_size")
@dataclass
class GenerationConfig(FairseqDataclass):
beam: int = field(
default=5,
metadata={"help": "beam size"},
)
nbest: int = field(
default=1,
metadata={"help": "number of hypotheses to output"},
)
max_len_a: float = field(
default=0,
metadata={
"help": "generate sequences of maximum length ax + b, where x is the source length"
},
)
max_len_b: int = field(
default=200,
metadata={
"help": "generate sequences of maximum length ax + b, where x is the source length"
},
)
min_len: int = field(
default=1,
metadata={"help": "minimum generation length"},
)
match_source_len: bool = field(
default=False,
metadata={"help": "generations should match the source length"},
)
unnormalized: bool = field(
default=False,
metadata={"help": "compare unnormalized hypothesis scores"},
)
no_early_stop: bool = field(
default=False,
metadata={"help": "deprecated"},
)
no_beamable_mm: bool = field(
default=False,
metadata={"help": "don't use BeamableMM in attention layers"},
)
lenpen: float = field(
default=1,
metadata={
"help": "length penalty: <1.0 favors shorter, >1.0 favors longer sentences"
},
)
unkpen: float = field(
default=0,
metadata={
"help": "unknown word penalty: <0 produces more unks, >0 produces fewer"
},
)
replace_unk: Optional[str] = field(
default=None,
metadata={
"help": "perform unknown replacement (optionally with alignment dictionary)",
"argparse_const": "@@ ",
},
)
sacrebleu: bool = field(
default=False,
metadata={"help": "score with sacrebleu"},
)
score_reference: bool = field(
default=False,
metadata={"help": "just score the reference translation"},
)
prefix_size: int = field(
default=0,
metadata={"help": "initialize generation by target prefix of given length"},
)
no_repeat_ngram_size: int = field(
default=0,
metadata={
"help": "ngram blocking such that this size ngram cannot be repeated in the generation"
},
)
sampling: bool = field(
default=False,
metadata={"help": "sample hypotheses instead of using beam search"},
)
sampling_topk: int = field(
default=-1,
metadata={"help": "sample from top K likely next words instead of all words"},
)
sampling_topp: float = field(
default=-1.0,
metadata={
"help": "sample from the smallest set whose cumulative probability mass exceeds p for next words"
},
)
constraints: Optional[GENERATION_CONSTRAINTS_CHOICES] = field(
default=None,
metadata={
"help": "enables lexically constrained decoding",
"argparse_const": "ordered",
},
)
temperature: float = field(
default=1.0,
metadata={"help": "temperature for generation"},
)
diverse_beam_groups: int = field(
default=-1,
metadata={"help": "number of groups for Diverse Beam Search"},
)
diverse_beam_strength: float = field(
default=0.5,
metadata={"help": "strength of diversity penalty for Diverse Beam Search"},
)
diversity_rate: float = field(
default=-1.0,
metadata={"help": "strength of diversity penalty for Diverse Siblings Search"},
)
print_alignment: Optional[PRINT_ALIGNMENT_CHOICES] = field(
default=None,
metadata={
"help": "if set, uses attention feedback to compute and print alignment to source tokens "
"(valid options are: hard, soft, otherwise treated as hard alignment)",
"argparse_const": "hard",
},
)
print_step: bool = field(
default=False,
metadata={"help": "print steps"},
)
lm_path: Optional[str] = field(
default=None,
metadata={"help": "path to lm checkpoint for lm fusion"},
)
lm_weight: float = field(
default=0.0,
metadata={"help": "weight for lm probs for lm fusion"},
)
# arguments for iterative refinement generator
iter_decode_eos_penalty: float = field(
default=0.0,
metadata={"help": "if > 0.0, it penalized early-stopping in decoding."},
)
iter_decode_max_iter: int = field(
default=10,
metadata={"help": "maximum iterations for iterative refinement."},
)
iter_decode_force_max_iter: bool = field(
default=False,
metadata={
"help": "if set, run exact the maximum number of iterations without early stop"
},
)
iter_decode_with_beam: int = field(
default=1,
metadata={
"help": "if > 1, model will generate translations varying by the lengths."
},
)
iter_decode_with_external_reranker: bool = field(
default=False,
metadata={
"help": "if set, the last checkpoint are assumed to be a reranker to rescore the translations"
},
)
retain_iter_history: bool = field(
default=False,
metadata={
"help": "if set, decoding returns the whole history of iterative refinement"
},
)
retain_dropout: bool = field(
default=False,
metadata={"help": "Use dropout at inference time"},
)
# temporarily set to Any until https://github.com/facebookresearch/hydra/issues/1117 is fixed
# retain_dropout_modules: Optional[List[str]] = field(
retain_dropout_modules: Any = field(
default=None,
metadata={
"help": "if set, only retain dropout for the specified modules; "
"if not set, then dropout will be retained for all modules"
},
)
# special decoding format for advanced decoding.
decoding_format: Optional[GENERATION_DECODING_FORMAT_CHOICES] = field(
default=None,
metadata={"help": "special decoding format for advanced decoding."},
)
no_seed_provided: bool = field(
default=False,
metadata={"help": "if set, dont use seed for initializing random generators"},
)
@dataclass
class CommonEvalConfig(FairseqDataclass):
path: Optional[str] = field(
default=None,
metadata={"help": "path(s) to model file(s), colon separated"},
)
post_process: Optional[str] = field(
default=None,
metadata={
"help": (
"post-process text by removing BPE, letter segmentation, etc. "
"Valid options can be found in fairseq.data.utils.post_process."
),
"argparse_const": "subword_nmt",
"argparse_alias": "--remove-bpe",
},
)
quiet: bool = field(default=False, metadata={"help": "only print final scores"})
model_overrides: str = field(
default="{}",
metadata={
"help": "a dictionary used to override model args at generation that were used during model training"
},
)
results_path: Optional[str] = field(
default=None, metadata={"help": "path to save eval results (optional)"}
)
@dataclass
class EvalLMConfig(FairseqDataclass):
output_word_probs: bool = field(
default=False,
metadata={
"help": "if set, outputs words and their predicted log probabilities to standard output"
},
)
output_word_stats: bool = field(
default=False,
metadata={
"help": "if set, outputs word statistics such as word count, average probability, etc"
},
)
context_window: int = field(
default=0,
metadata={
"help": "ensures that every evaluated token has access to a context of at least this size, if possible"
},
)
softmax_batch: int = field(
default=sys.maxsize,
metadata={
"help": "if BxT is more than this, will batch the softmax over vocab to this amount of tokens, in order to fit into GPU memory"
},
)
@dataclass
class InteractiveConfig(FairseqDataclass):
buffer_size: int = field(
default=0,
metadata={
"help": "read this many sentences into a buffer before processing them"
},
)
input: str = field(
default="-",
metadata={"help": "file to read from; use - for stdin"},
)
@dataclass
class FairseqConfig(FairseqDataclass):
common: CommonConfig = CommonConfig()
common_eval: CommonEvalConfig = CommonEvalConfig()
distributed_training: DistributedTrainingConfig = DistributedTrainingConfig()
dataset: DatasetConfig = DatasetConfig()
optimization: OptimizationConfig = OptimizationConfig()
checkpoint: CheckpointConfig = CheckpointConfig()
bmuf: FairseqBMUFConfig = FairseqBMUFConfig()
generation: GenerationConfig = GenerationConfig()
eval_lm: EvalLMConfig = EvalLMConfig()
interactive: InteractiveConfig = InteractiveConfig()
model: Any = MISSING
task: Any = None
criterion: Any = None
optimizer: Any = None
lr_scheduler: Any = None
scoring: Any = None
bpe: Any = None
tokenizer: Any = None
@@ -0,0 +1,52 @@
# 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.
from enum import Enum, EnumMeta
from typing import List
class StrEnumMeta(EnumMeta):
# this is workaround for submitit pickling leading to instance checks failing in hydra for StrEnum, see
# https://github.com/facebookresearch/hydra/issues/1156
@classmethod
def __instancecheck__(cls, other):
return "enum" in str(type(other))
class StrEnum(Enum, metaclass=StrEnumMeta):
def __str__(self):
return self.value
def __eq__(self, other: str):
return self.value == other
def __repr__(self):
return self.value
def __hash__(self):
return hash(str(self))
def ChoiceEnum(choices: List[str]):
"""return the Enum class used to enforce list of choices"""
return StrEnum("Choices", {k: k for k in choices})
LOG_FORMAT_CHOICES = ChoiceEnum(["json", "none", "simple", "tqdm"])
DDP_BACKEND_CHOICES = ChoiceEnum([
"c10d", # alias for pytorch_ddp
"legacy_ddp",
"no_c10d", # alias for legacy_ddp
"pytorch_ddp",
"slow_mo",
])
DATASET_IMPL_CHOICES = ChoiceEnum(["raw", "lazy", "cached", "mmap", "fasta"])
GENERATION_CONSTRAINTS_CHOICES = ChoiceEnum(["ordered", "unordered"])
GENERATION_DECODING_FORMAT_CHOICES = ChoiceEnum(
["unigram", "ensemble", "vote", "dp", "bs"]
)
ZERO_SHARDING_CHOICES = ChoiceEnum(["none", "os"])
PIPELINE_CHECKPOINT_CHOICES = ChoiceEnum(["always", "never", "except_last"])
PRINT_ALIGNMENT_CHOICES = ChoiceEnum(["hard", "soft"])
@@ -0,0 +1,61 @@
# 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 logging
from hydra.core.config_store import ConfigStore
from fairseq.dataclass.configs import FairseqConfig
from omegaconf import DictConfig, OmegaConf
logger = logging.getLogger(__name__)
def hydra_init(cfg_name="config") -> None:
cs = ConfigStore.instance()
cs.store(name=cfg_name, node=FairseqConfig)
for k in FairseqConfig.__dataclass_fields__:
v = FairseqConfig.__dataclass_fields__[k].default
try:
cs.store(name=k, node=v)
except BaseException:
logger.error(f"{k} - {v}")
raise
def add_defaults(cfg: DictConfig) -> None:
"""This function adds default values that are stored in dataclasses that hydra doesn't know about """
from fairseq.registry import REGISTRIES
from fairseq.tasks import TASK_DATACLASS_REGISTRY
from fairseq.models import ARCH_MODEL_NAME_REGISTRY, MODEL_DATACLASS_REGISTRY
from fairseq.dataclass.utils import merge_with_parent
from typing import Any
OmegaConf.set_struct(cfg, False)
for k, v in FairseqConfig.__dataclass_fields__.items():
field_cfg = cfg.get(k)
if field_cfg is not None and v.type == Any:
dc = None
if isinstance(field_cfg, str):
field_cfg = DictConfig({"_name": field_cfg})
field_cfg.__dict__["_parent"] = field_cfg.__dict__["_parent"]
name = field_cfg.get("_name")
if k == "task":
dc = TASK_DATACLASS_REGISTRY.get(name)
elif k == "model":
name = ARCH_MODEL_NAME_REGISTRY.get(name, name)
dc = MODEL_DATACLASS_REGISTRY.get(name)
elif k in REGISTRIES:
dc = REGISTRIES[k]["dataclass_registry"].get(name)
if dc is not None:
cfg[k] = merge_with_parent(dc, field_cfg)
+460
View File
@@ -0,0 +1,460 @@
# 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.
import ast
import inspect
import logging
import os
import re
from argparse import ArgumentError, ArgumentParser, Namespace
from dataclasses import _MISSING_TYPE, MISSING
from enum import Enum
from typing import Any, Dict, List, Optional, Tuple, Type
from fairseq.dataclass import FairseqDataclass
from fairseq.dataclass.configs import FairseqConfig
from hydra.core.global_hydra import GlobalHydra
from hydra.experimental import compose, initialize
from omegaconf import DictConfig, OmegaConf, open_dict
logger = logging.getLogger(__name__)
def eval_str_list(x, x_type=float):
if x is None:
return None
if isinstance(x, str):
if len(x) == 0:
return []
x = ast.literal_eval(x)
try:
return list(map(x_type, x))
except TypeError:
return [x_type(x)]
def interpret_dc_type(field_type):
if isinstance(field_type, str):
raise RuntimeError("field should be a type")
if field_type == Any:
return str
typestring = str(field_type)
if re.match(r"(typing.|^)Union\[(.*), NoneType\]$", typestring) or typestring.startswith("typing.Optional"):
return field_type.__args__[0]
return field_type
def gen_parser_from_dataclass(
parser: ArgumentParser,
dataclass_instance: FairseqDataclass,
delete_default: bool = False,
) -> None:
"""convert a dataclass instance to tailing parser arguments"""
def argparse_name(name: str):
if name == "data":
# normally data is positional args
return name
if name == "_name":
# private member, skip
return None
return "--" + name.replace("_", "-")
def get_kwargs_from_dc(
dataclass_instance: FairseqDataclass, k: str
) -> Dict[str, Any]:
"""k: dataclass attributes"""
kwargs = {}
field_type = dataclass_instance._get_type(k)
inter_type = interpret_dc_type(field_type)
field_default = dataclass_instance._get_default(k)
if isinstance(inter_type, type) and issubclass(inter_type, Enum):
field_choices = [t.value for t in list(inter_type)]
else:
field_choices = None
field_help = dataclass_instance._get_help(k)
field_const = dataclass_instance._get_argparse_const(k)
if isinstance(field_default, str) and field_default.startswith("${"):
kwargs["default"] = field_default
else:
if field_default is MISSING:
kwargs["required"] = True
if field_choices is not None:
kwargs["choices"] = field_choices
if (
isinstance(inter_type, type)
and (issubclass(inter_type, List) or issubclass(inter_type, Tuple))
) or ("List" in str(inter_type) or "Tuple" in str(inter_type)):
if "int" in str(inter_type):
kwargs["type"] = lambda x: eval_str_list(x, int)
elif "float" in str(inter_type):
kwargs["type"] = lambda x: eval_str_list(x, float)
elif "str" in str(inter_type):
kwargs["type"] = lambda x: eval_str_list(x, str)
else:
raise NotImplementedError(
"parsing of type " + str(inter_type) + " is not implemented"
)
if field_default is not MISSING:
kwargs["default"] = (
",".join(map(str, field_default))
if field_default is not None
else None
)
elif (
isinstance(inter_type, type) and issubclass(inter_type, Enum)
) or "Enum" in str(inter_type):
kwargs["type"] = str
if field_default is not MISSING:
if isinstance(field_default, Enum):
kwargs["default"] = field_default.value
else:
kwargs["default"] = field_default
elif inter_type is bool:
kwargs["action"] = (
"store_false" if field_default is True else "store_true"
)
kwargs["default"] = field_default
else:
kwargs["type"] = inter_type
if field_default is not MISSING:
kwargs["default"] = field_default
kwargs["help"] = field_help
if field_const is not None:
kwargs["const"] = field_const
kwargs["nargs"] = "?"
return kwargs
for k in dataclass_instance._get_all_attributes():
field_name = argparse_name(dataclass_instance._get_name(k))
field_type = dataclass_instance._get_type(k)
if field_name is None:
continue
elif inspect.isclass(field_type) and issubclass(field_type, FairseqDataclass):
gen_parser_from_dataclass(parser, field_type(), delete_default)
continue
kwargs = get_kwargs_from_dc(dataclass_instance, k)
field_args = [field_name]
alias = dataclass_instance._get_argparse_alias(k)
if alias is not None:
field_args.append(alias)
if "default" in kwargs:
if isinstance(kwargs["default"], str) and kwargs["default"].startswith(
"${"
):
if kwargs["help"] is None:
# this is a field with a name that will be added elsewhere
continue
else:
del kwargs["default"]
if delete_default and "default" in kwargs:
del kwargs["default"]
try:
parser.add_argument(*field_args, **kwargs)
except ArgumentError:
pass
def _set_legacy_defaults(args, cls):
"""Helper to set default arguments based on *add_args*."""
if not hasattr(cls, "add_args"):
return
import argparse
parser = argparse.ArgumentParser(
argument_default=argparse.SUPPRESS, allow_abbrev=False
)
cls.add_args(parser)
# copied from argparse.py:
defaults = argparse.Namespace()
for action in parser._actions:
if action.dest is not argparse.SUPPRESS:
if not hasattr(defaults, action.dest):
if action.default is not argparse.SUPPRESS:
setattr(defaults, action.dest, action.default)
for key, default_value in vars(defaults).items():
if not hasattr(args, key):
setattr(args, key, default_value)
def _override_attr(
sub_node: str, data_class: Type[FairseqDataclass], args: Namespace
) -> List[str]:
overrides = []
if not inspect.isclass(data_class) or not issubclass(data_class, FairseqDataclass):
return overrides
def get_default(f):
if not isinstance(f.default_factory, _MISSING_TYPE):
return f.default_factory()
return f.default
for k, v in data_class.__dataclass_fields__.items():
if k.startswith("_"):
# private member, skip
continue
val = get_default(v) if not hasattr(args, k) else getattr(args, k)
field_type = interpret_dc_type(v.type)
if (
isinstance(val, str)
and not val.startswith("${") # not interpolation
and field_type != str
and (
not inspect.isclass(field_type) or not issubclass(field_type, Enum)
) # not choices enum
):
# upgrade old models that stored complex parameters as string
val = ast.literal_eval(val)
if isinstance(val, tuple):
val = list(val)
v_type = getattr(v.type, "__origin__", None)
if (
(v_type is List or v_type is list or v_type is Optional)
# skip interpolation
and not (isinstance(val, str) and val.startswith("${"))
):
# if type is int but val is float, then we will crash later - try to convert here
if hasattr(v.type, '__args__'):
t_args = v.type.__args__
if len(t_args) == 1:
val = list(map(t_args[0], val))
elif val is not None and (field_type is int or field_type is bool or field_type is float):
try:
val = field_type(val)
except:
pass # ignore errors here, they are often from interpolation args
if val is None:
overrides.append("{}.{}=null".format(sub_node, k))
elif val == "":
overrides.append("{}.{}=''".format(sub_node, k))
elif isinstance(val, str):
val = val.replace("'", r"\'")
overrides.append("{}.{}='{}'".format(sub_node, k, val))
elif isinstance(val, FairseqDataclass):
overrides += _override_attr(f"{sub_node}.{k}", type(val), args)
elif isinstance(val, Namespace):
sub_overrides, _ = override_module_args(val)
for so in sub_overrides:
overrides.append(f"{sub_node}.{k}.{so}")
else:
overrides.append("{}.{}={}".format(sub_node, k, val))
return overrides
def migrate_registry(
name, value, registry, args, overrides, deletes, use_name_as_val=False
):
if value in registry:
overrides.append("{}={}".format(name, value))
overrides.append("{}._name={}".format(name, value))
overrides.extend(_override_attr(name, registry[value], args))
elif use_name_as_val and value is not None:
overrides.append("{}={}".format(name, value))
else:
deletes.append(name)
def override_module_args(args: Namespace) -> Tuple[List[str], List[str]]:
"""use the field in args to overrides those in cfg"""
overrides = []
deletes = []
for k in FairseqConfig.__dataclass_fields__.keys():
overrides.extend(
_override_attr(k, FairseqConfig.__dataclass_fields__[k].type, args)
)
if args is not None:
if hasattr(args, "task"):
from fairseq.tasks import TASK_DATACLASS_REGISTRY
migrate_registry(
"task", args.task, TASK_DATACLASS_REGISTRY, args, overrides, deletes
)
else:
deletes.append("task")
# these options will be set to "None" if they have not yet been migrated
# so we can populate them with the entire flat args
CORE_REGISTRIES = {"criterion", "optimizer", "lr_scheduler"}
from fairseq.registry import REGISTRIES
for k, v in REGISTRIES.items():
if hasattr(args, k):
migrate_registry(
k,
getattr(args, k),
v["dataclass_registry"],
args,
overrides,
deletes,
use_name_as_val=k not in CORE_REGISTRIES,
)
else:
deletes.append(k)
no_dc = True
if hasattr(args, "arch"):
from fairseq.models import ARCH_MODEL_REGISTRY, ARCH_MODEL_NAME_REGISTRY
if args.arch in ARCH_MODEL_REGISTRY:
m_cls = ARCH_MODEL_REGISTRY[args.arch]
dc = getattr(m_cls, "__dataclass", None)
if dc is not None:
m_name = ARCH_MODEL_NAME_REGISTRY[args.arch]
overrides.append("model={}".format(m_name))
overrides.append("model._name={}".format(args.arch))
# override model params with those exist in args
overrides.extend(_override_attr("model", dc, args))
no_dc = False
if no_dc:
deletes.append("model")
return overrides, deletes
def convert_namespace_to_omegaconf(args: Namespace) -> DictConfig:
"""Convert a flat argparse.Namespace to a structured DictConfig."""
# Here we are using field values provided in args to override counterparts inside config object
overrides, deletes = override_module_args(args)
# configs will be in fairseq/config after installation
config_path = os.path.join("..", "config")
GlobalHydra.instance().clear()
with initialize(config_path=config_path):
try:
composed_cfg = compose("config", overrides=overrides, strict=False)
except:
logger.error("Error when composing. Overrides: " + str(overrides))
raise
for k in deletes:
composed_cfg[k] = None
cfg = OmegaConf.create(
OmegaConf.to_container(composed_cfg, resolve=True, enum_to_str=True)
)
# hack to be able to set Namespace in dict config. this should be removed when we update to newer
# omegaconf version that supports object flags, or when we migrate all existing models
from omegaconf import _utils
old_primitive = _utils.is_primitive_type
_utils.is_primitive_type = lambda _: True
if cfg.task is None and getattr(args, "task", None):
cfg.task = Namespace(**vars(args))
from fairseq.tasks import TASK_REGISTRY
_set_legacy_defaults(cfg.task, TASK_REGISTRY[args.task])
cfg.task._name = args.task
if cfg.model is None and getattr(args, "arch", None):
cfg.model = Namespace(**vars(args))
from fairseq.models import ARCH_MODEL_REGISTRY
_set_legacy_defaults(cfg.model, ARCH_MODEL_REGISTRY[args.arch])
cfg.model._name = args.arch
if cfg.optimizer is None and getattr(args, "optimizer", None):
cfg.optimizer = Namespace(**vars(args))
from fairseq.optim import OPTIMIZER_REGISTRY
_set_legacy_defaults(cfg.optimizer, OPTIMIZER_REGISTRY[args.optimizer])
cfg.optimizer._name = args.optimizer
if cfg.lr_scheduler is None and getattr(args, "lr_scheduler", None):
cfg.lr_scheduler = Namespace(**vars(args))
from fairseq.optim.lr_scheduler import LR_SCHEDULER_REGISTRY
_set_legacy_defaults(cfg.lr_scheduler, LR_SCHEDULER_REGISTRY[args.lr_scheduler])
cfg.lr_scheduler._name = args.lr_scheduler
if cfg.criterion is None and getattr(args, "criterion", None):
cfg.criterion = Namespace(**vars(args))
from fairseq.criterions import CRITERION_REGISTRY
_set_legacy_defaults(cfg.criterion, CRITERION_REGISTRY[args.criterion])
cfg.criterion._name = args.criterion
_utils.is_primitive_type = old_primitive
OmegaConf.set_struct(cfg, True)
return cfg
def populate_dataclass(
dataclass: FairseqDataclass,
args: Namespace,
) -> FairseqDataclass:
for k in dataclass.__dataclass_fields__.keys():
if k.startswith("_"):
# private member, skip
continue
if hasattr(args, k):
setattr(dataclass, k, getattr(args, k))
return dataclass
def overwrite_args_by_name(cfg: DictConfig, overrides: Dict[str, any]):
# this will be deprecated when we get rid of argparse and model_overrides logic
from fairseq.registry import REGISTRIES
with open_dict(cfg):
for k in cfg.keys():
# "k in cfg" will return false if its a "mandatory value (e.g. ???)"
if k in cfg and isinstance(cfg[k], DictConfig):
if k in overrides and isinstance(overrides[k], dict):
for ok, ov in overrides[k].items():
if isinstance(ov, dict):
overwrite_args_by_name(cfg[k][ok], ov)
else:
cfg[k][ok] = ov
else:
overwrite_args_by_name(cfg[k], overrides)
elif k in cfg and isinstance(cfg[k], Namespace):
for override_key, val in overrides.items():
setattr(cfg[k], override_key, val)
elif k in overrides:
if (
k in REGISTRIES
and overrides[k] in REGISTRIES[k]["dataclass_registry"]
):
cfg[k] = DictConfig(
REGISTRIES[k]["dataclass_registry"][overrides[k]]
)
overwrite_args_by_name(cfg[k], overrides)
cfg[k]._name = overrides[k]
else:
cfg[k] = overrides[k]
def merge_with_parent(dc: FairseqDataclass, cfg: FairseqDataclass):
merged_cfg = OmegaConf.merge(dc, cfg)
merged_cfg.__dict__["_parent"] = cfg.__dict__["_parent"]
OmegaConf.set_struct(merged_cfg, True)
return merged_cfg