Files
hao-ai-lab-FastVideo/fastvideo/fastvideo_args.py

1156 lines
45 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# Inspired by SGLang: https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/server_args.py
"""The arguments of FastVideo Inference."""
import argparse
import dataclasses
import json
from contextlib import contextmanager
from dataclasses import field
from enum import Enum
from typing import Any
from fastvideo.configs.configs import PreprocessConfig
from fastvideo.configs.pipelines.base import PipelineConfig, STA_Mode
from fastvideo.configs.utils import clean_cli_args
from fastvideo.logger import init_logger
from fastvideo.platforms import current_platform
from fastvideo.utils import FlexibleArgumentParser, StoreBoolean
logger = init_logger(__name__)
class ExecutionMode(str, Enum):
"""
Enumeration for different pipeline modes.
Inherits from str to allow string comparison for backward compatibility.
"""
INFERENCE = "inference"
PREPROCESS = "preprocess"
FINETUNING = "finetuning"
DISTILLATION = "distillation"
@classmethod
def from_string(cls, value: str) -> "ExecutionMode":
"""Convert string to ExecutionMode enum."""
try:
return cls(value.lower())
except ValueError:
raise ValueError(
f"Invalid mode: {value}. Must be one of: {', '.join([m.value for m in cls])}"
) from None
@classmethod
def choices(cls) -> list[str]:
"""Get all available choices as strings for argparse."""
return [mode.value for mode in cls]
class WorkloadType(str, Enum):
"""
Enumeration for different workload types.
Inherits from str to allow string comparison for backward compatibility.
"""
I2V = "i2v" # Image to Video
T2V = "t2v" # Text to Video
T2I = "t2i" # Text to Image
I2I = "i2i" # Image to Image
@classmethod
def from_string(cls, value: str) -> "WorkloadType":
"""Convert string to WorkloadType enum."""
try:
return cls(value.lower())
except ValueError:
raise ValueError(
f"Invalid workload type: {value}. Must be one of: {', '.join([m.value for m in cls])}"
) from None
@classmethod
def choices(cls) -> list[str]:
"""Get all available choices as strings for argparse."""
return [workload.value for workload in cls]
# args for fastvideo framework
@dataclasses.dataclass
class FastVideoArgs:
# Model and path configuration (for convenience)
model_path: str
# Running mode
mode: ExecutionMode = ExecutionMode.INFERENCE
# Workload type
workload_type: WorkloadType = WorkloadType.T2V
# Cache strategy
cache_strategy: str = "none"
# Distributed executor backend
distributed_executor_backend: str = "mp"
inference_mode: bool = True # if False == training mode
# HuggingFace specific parameters
trust_remote_code: bool = False
revision: str | None = None
# Parallelism
num_gpus: int = 1
tp_size: int = -1
sp_size: int = -1
hsdp_replicate_dim: int = 1
hsdp_shard_dim: int = -1
dist_timeout: int | None = None # timeout for torch.distributed
pipeline_config: PipelineConfig = field(default_factory=PipelineConfig)
preprocess_config: PreprocessConfig | None = None
# LoRA parameters
# (Wenxuan) prefer to keep it here instead of in pipeline config to not make it complicated.
lora_path: str | None = None
lora_nickname: str = "default" # for swapping adapters in the pipeline
# can restrict layers to adapt, e.g. ["q_proj"]
# Will adapt only q, k, v, o by default.
lora_target_modules: list[str] | None = None
output_type: str = "pil"
# CPU offload parameters
dit_cpu_offload: bool = True
use_fsdp_inference: bool = True
text_encoder_cpu_offload: bool = True
image_encoder_cpu_offload: bool = True
vae_cpu_offload: bool = True
pin_cpu_memory: bool = True
# STA (Sliding Tile Attention) parameters
mask_strategy_file_path: str | None = None
STA_mode: STA_Mode = STA_Mode.STA_INFERENCE
skip_time_steps: int = 15
# Compilation
enable_torch_compile: bool = False
disable_autocast: bool = False
# VSA parameters
VSA_sparsity: float = 0.0 # inference/validation sparsity
# V-MoBA parameters
moba_config_path: str | None = None
moba_config: dict[str, Any] = field(default_factory=dict)
# Master port for distributed training/inference
master_port: int | None = None
# Stage verification
enable_stage_verification: bool = True
# Prompt text file for batch processing
prompt_txt: str | None = None
# model paths for correct deallocation
model_paths: dict[str, str] = field(default_factory=dict)
model_loaded: dict[str, bool] = field(default_factory=lambda: {
"transformer": True,
"vae": True,
})
override_transformer_cls_name: str | None = None
# # DMD parameters
# dmd_denoising_steps: List[int] | None = field(default=None)
# MoE parameters used by Wan2.2
boundary_ratio: float | None = None
@property
def training_mode(self) -> bool:
return not self.inference_mode
def __post_init__(self):
if self.moba_config_path:
try:
with open(self.moba_config_path) as f:
self.moba_config = json.load(f)
logger.info("Loaded V-MoBA config from %s",
self.moba_config_path)
except (FileNotFoundError, json.JSONDecodeError) as e:
logger.error("Failed to load V-MoBA config from %s: %s",
self.moba_config_path, e)
raise
self.check_fastvideo_args()
@staticmethod
def add_cli_args(parser: FlexibleArgumentParser) -> FlexibleArgumentParser:
# Model and path configuration
parser.add_argument(
"--model-path",
type=str,
help=
"The path of the model weights. This can be a local folder or a Hugging Face repo ID.",
)
parser.add_argument(
"--model-dir",
type=str,
help="Directory containing StepVideo model",
)
# Running mode
parser.add_argument(
"--mode",
type=str,
choices=ExecutionMode.choices(),
default=FastVideoArgs.mode.value,
help="The mode to run FastVideo",
)
# Workload type
parser.add_argument(
"--workload-type",
type=str,
choices=WorkloadType.choices(),
default=FastVideoArgs.workload_type.value,
help="The workload type",
)
# distributed_executor_backend
parser.add_argument(
"--distributed-executor-backend",
type=str,
choices=["mp"],
default=FastVideoArgs.distributed_executor_backend,
help="The distributed executor backend to use",
)
parser.add_argument(
"--inference-mode",
action=StoreBoolean,
default=FastVideoArgs.inference_mode,
help="Whether to use inference mode",
)
# HuggingFace specific parameters
parser.add_argument(
"--trust-remote-code",
action=StoreBoolean,
default=FastVideoArgs.trust_remote_code,
help="Trust remote code when loading HuggingFace models",
)
parser.add_argument(
"--revision",
type=str,
default=FastVideoArgs.revision,
help=
"The specific model version to use (can be a branch name, tag name, or commit id)",
)
# Parallelism
parser.add_argument(
"--num-gpus",
type=int,
default=FastVideoArgs.num_gpus,
help="The number of GPUs to use.",
)
parser.add_argument(
"--tp-size",
type=int,
default=FastVideoArgs.tp_size,
help="The tensor parallelism size.",
)
parser.add_argument(
"--sp-size",
type=int,
default=FastVideoArgs.sp_size,
help="The sequence parallelism size.",
)
parser.add_argument(
"--hsdp-replicate-dim",
type=int,
default=FastVideoArgs.hsdp_replicate_dim,
help="The data parallelism size.",
)
parser.add_argument(
"--hsdp-shard-dim",
type=int,
default=FastVideoArgs.hsdp_shard_dim,
help="The data parallelism shards.",
)
parser.add_argument(
"--dist-timeout",
type=int,
default=FastVideoArgs.dist_timeout,
help="Set timeout for torch.distributed initialization.",
)
# Output type
parser.add_argument(
"--output-type",
type=str,
default=FastVideoArgs.output_type,
choices=["pil"],
help="Output type for the generated video",
)
# Prompt text file for batch processing
parser.add_argument(
"--prompt-txt",
type=str,
default=FastVideoArgs.prompt_txt,
help=
"Path to a text file containing prompts (one per line) for batch processing",
)
# STA (Sliding Tile Attention) parameters
parser.add_argument(
"--STA-mode",
type=str,
default=FastVideoArgs.STA_mode.value,
choices=[mode.value for mode in STA_Mode],
help=
"STA mode contains STA_inference, STA_searching, STA_tuning, STA_tuning_cfg, None",
)
parser.add_argument(
"--skip-time-steps",
type=int,
default=FastVideoArgs.skip_time_steps,
help="Number of time steps to warmup (full attention) for STA",
)
parser.add_argument(
"--mask-strategy-file-path",
type=str,
help="Path to mask strategy JSON file for STA",
)
parser.add_argument(
"--enable-torch-compile",
action=StoreBoolean,
default=FastVideoArgs.enable_torch_compile,
help="Use torch.compile to speed up DiT inference." +
"However, will likely cause precision drifts. See (https://github.com/pytorch/pytorch/issues/145213)",
)
parser.add_argument(
"--dit-cpu-offload",
action=StoreBoolean,
help=
"Use CPU offload for DiT inference. Enable if run out of memory with FSDP.",
)
parser.add_argument(
"--use-fsdp-inference",
action=StoreBoolean,
help=
"Use FSDP for inference by sharding the model weights. Latency is very low due to prefetch--enable if run out of memory.",
)
parser.add_argument(
"--text-encoder-cpu-offload",
action=StoreBoolean,
help=
"Use CPU offload for text encoder. Enable if run out of memory.",
)
parser.add_argument(
"--image-encoder-cpu-offload",
action=StoreBoolean,
help=
"Use CPU offload for image encoder. Enable if run out of memory.",
)
parser.add_argument(
"--vae-cpu-offload",
action=StoreBoolean,
help="Use CPU offload for VAE. Enable if run out of memory.",
)
parser.add_argument(
"--pin-cpu-memory",
action=StoreBoolean,
help=
"Pin memory for CPU offload. Only added as a temp workaround if it throws \"CUDA error: invalid argument\". "
"Should be enabled in almost all cases",
)
parser.add_argument(
"--disable-autocast",
action=StoreBoolean,
help=
"Disable autocast for denoising loop and vae decoding in pipeline sampling",
)
# VSA parameters
parser.add_argument(
"--VSA-sparsity",
type=float,
default=FastVideoArgs.VSA_sparsity,
help="Validation sparsity for VSA",
)
# Master port for distributed training/inference
parser.add_argument(
"--master-port",
type=int,
default=FastVideoArgs.master_port,
help="Master port for distributed training/inference",
)
# Stage verification
parser.add_argument(
"--enable-stage-verification",
action=StoreBoolean,
default=FastVideoArgs.enable_stage_verification,
help="Enable input/output verification for pipeline stages",
)
parser.add_argument(
"--override-transformer-cls-name",
type=str,
default=FastVideoArgs.override_transformer_cls_name,
help="Override transformer cls name",
)
# Add pipeline configuration arguments
PipelineConfig.add_cli_args(parser)
# Add preprocessing configuration arguments
PreprocessConfig.add_cli_args(parser)
return parser
@classmethod
def from_cli_args(cls, args: argparse.Namespace) -> "FastVideoArgs":
provided_args = clean_cli_args(args)
# Get all fields from the dataclass
attrs = [attr.name for attr in dataclasses.fields(cls)]
# Create a dictionary of attribute values, with defaults for missing attributes
kwargs: dict[str, Any] = {}
for attr in attrs:
if attr == 'pipeline_config':
pipeline_config = PipelineConfig.from_kwargs(provided_args)
kwargs['pipeline_config'] = pipeline_config
elif attr == 'preprocess_config':
preprocess_config = PreprocessConfig.from_kwargs(provided_args)
kwargs['preprocess_config'] = preprocess_config
elif attr == 'mode':
# Convert string to ExecutionMode enum
mode_value = getattr(args, attr, FastVideoArgs.mode.value)
kwargs['mode'] = ExecutionMode.from_string(
mode_value) if isinstance(mode_value, str) else mode_value
elif attr == 'workload_type':
# Convert string to WorkloadType enum
workload_type_value = getattr(args, 'workload_type',
FastVideoArgs.workload_type.value)
kwargs['workload_type'] = WorkloadType.from_string(
workload_type_value) if isinstance(
workload_type_value, str) else workload_type_value
# Use getattr with default value from the dataclass for potentially missing attributes
else:
# Get the field to check if it has a default_factory
field = dataclasses.fields(cls)[next(
i for i, f in enumerate(dataclasses.fields(cls))
if f.name == attr)]
if field.default_factory is not dataclasses.MISSING:
# Use the default_factory to create the default value
default_value = field.default_factory()
else:
default_value = getattr(cls, attr, None)
value = getattr(args, attr, default_value)
kwargs[attr] = value # type: ignore
return cls(**kwargs) # type: ignore
@classmethod
def from_kwargs(cls, **kwargs: Any) -> "FastVideoArgs":
# Convert mode string to enum if necessary
if 'mode' in kwargs and isinstance(kwargs['mode'], str):
kwargs['mode'] = ExecutionMode.from_string(kwargs['mode'])
# Convert workload_type string to enum if necessary
if 'workload_type' in kwargs and isinstance(kwargs['workload_type'],
str):
kwargs['workload_type'] = WorkloadType.from_string(
kwargs['workload_type'])
kwargs['pipeline_config'] = PipelineConfig.from_kwargs(kwargs)
kwargs['preprocess_config'] = PreprocessConfig.from_kwargs(kwargs)
return cls(**kwargs)
def check_fastvideo_args(self) -> None:
"""Validate inference arguments for consistency"""
if current_platform.is_mps():
self.use_fsdp_inference = False
# Validate mode and inference_mode consistency
assert isinstance(
self.mode, ExecutionMode
), f"Mode must be an ExecutionMode enum, got {type(self.mode)}"
assert self.mode in ExecutionMode.choices(
), f"Invalid execution mode: {self.mode}"
# Validate workload type
assert isinstance(
self.workload_type, WorkloadType
), f"Workload type must be a WorkloadType enum, got {type(self.workload_type)}"
assert self.workload_type in WorkloadType.choices(
), f"Invalid workload type: {self.workload_type}"
if self.mode in [ExecutionMode.DISTILLATION, ExecutionMode.FINETUNING
] and self.inference_mode:
logger.warning(
"Mode is 'training' but inference_mode is True. Setting inference_mode to False."
)
self.inference_mode = False
elif self.mode in [ExecutionMode.INFERENCE, ExecutionMode.PREPROCESS
] and not self.inference_mode:
logger.warning(
"Mode is '%s' but inference_mode is False. Setting inference_mode to True.",
self.mode)
self.inference_mode = True
if not self.inference_mode:
assert self.hsdp_replicate_dim != -1, "hsdp_replicate_dim must be set for training"
assert self.hsdp_shard_dim != -1, "hsdp_shard_dim must be set for training"
assert self.sp_size != -1, "sp_size must be set for training"
if self.tp_size == -1:
self.tp_size = 1
if self.sp_size == -1:
self.sp_size = self.num_gpus
if self.hsdp_shard_dim == -1:
self.hsdp_shard_dim = self.num_gpus
assert self.sp_size <= self.num_gpus and self.num_gpus % self.sp_size == 0, "num_gpus must >= and be divisible by sp_size"
assert self.hsdp_replicate_dim <= self.num_gpus and self.num_gpus % self.hsdp_replicate_dim == 0, "num_gpus must >= and be divisible by hsdp_replicate_dim"
assert self.hsdp_shard_dim <= self.num_gpus and self.num_gpus % self.hsdp_shard_dim == 0, "num_gpus must >= and be divisible by hsdp_shard_dim"
if self.num_gpus < max(self.tp_size, self.sp_size):
self.num_gpus = max(self.tp_size, self.sp_size)
if self.pipeline_config is None:
raise ValueError("pipeline_config is not set in FastVideoArgs")
self.pipeline_config.check_pipeline_config()
# Add preprocessing config validation if needed
if self.mode == ExecutionMode.PREPROCESS:
if self.preprocess_config is None:
raise ValueError(
"preprocess_config is not set in FastVideoArgs when mode is PREPROCESS"
)
if self.preprocess_config.model_path == "":
self.preprocess_config.model_path = self.model_path
if not self.pipeline_config.vae_config.load_encoder:
self.pipeline_config.vae_config.load_encoder = True
self.preprocess_config.check_preprocess_config()
_current_fastvideo_args = None
def prepare_fastvideo_args(argv: list[str]) -> FastVideoArgs:
"""
Prepare the inference arguments from the command line arguments.
Args:
argv: The command line arguments. Typically, it should be `sys.argv[1:]`
to ensure compatibility with `parse_args` when no arguments are passed.
Returns:
The inference arguments.
"""
parser = FlexibleArgumentParser()
FastVideoArgs.add_cli_args(parser)
raw_args = parser.parse_args(argv)
fastvideo_args = FastVideoArgs.from_cli_args(raw_args)
global _current_fastvideo_args
_current_fastvideo_args = fastvideo_args
return fastvideo_args
@contextmanager
def set_current_fastvideo_args(fastvideo_args: FastVideoArgs):
"""
Temporarily set the current fastvideo config.
Used during model initialization.
We save the current fastvideo config in a global variable,
so that all modules can access it, e.g. custom ops
can access the fastvideo config to determine how to dispatch.
"""
global _current_fastvideo_args
old_fastvideo_args = _current_fastvideo_args
try:
_current_fastvideo_args = fastvideo_args
yield
finally:
_current_fastvideo_args = old_fastvideo_args
def get_current_fastvideo_args() -> FastVideoArgs:
if _current_fastvideo_args is None:
# in ci, usually when we test custom ops/modules directly,
# we don't set the fastvideo config. In that case, we set a default
# config.
# TODO(will): may need to handle this for CI.
raise ValueError("Current fastvideo args is not set.")
return _current_fastvideo_args
@dataclasses.dataclass
class TrainingArgs(FastVideoArgs):
"""
Training arguments. Inherits from FastVideoArgs and adds training-specific
arguments. If there are any conflicts, the training arguments will take
precedence.
"""
data_path: str = ""
dataloader_num_workers: int = 0
num_height: int = 0
num_width: int = 0
num_frames: int = 0
train_batch_size: int = 0
num_latent_t: int = 0
group_frame: bool = False
group_resolution: bool = False
# text encoder & vae & diffusion model
pretrained_model_name_or_path: str = ""
dit_model_name_or_path: str = ""
# DMD model paths - separate paths for each network
generator_model_path: str = "" # path for generator (student) model
real_score_model_path: str = "" # path for real score (teacher) model
fake_score_model_path: str = "" # path for fake score (critic) model
# diffusion setting
ema_decay: float = 0.0
ema_start_step: int = 0
training_cfg_rate: float = 0.0
precondition_outputs: bool = False
# validation & logs
validation_dataset_file: str = ""
validation_preprocessed_path: str = ""
validation_sampling_steps: str = ""
validation_guidance_scale: str = ""
validation_steps: float = 0.0
log_validation: bool = False
tracker_project_name: str = ""
wandb_run_name: str = ""
seed: int | None = None
# output
output_dir: str = ""
checkpoints_total_limit: int = 0
checkpointing_steps: int = 0
resume_from_checkpoint: str = "" # specify the checkpoint folder to resume from
init_weights_from_safetensors: str = "" # path to safetensors file for initial weight loading
# optimizer & scheduler
num_train_epochs: int = 0
max_train_steps: int = 0
gradient_accumulation_steps: int = 0
learning_rate: float = 0.0
scale_lr: bool = False
lr_scheduler: str = "constant"
lr_warmup_steps: int = 0
max_grad_norm: float = 0.0
enable_gradient_checkpointing_type: str | None = None
selective_checkpointing: float = 0.0
mixed_precision: str = ""
train_sp_batch_size: int = 0
fsdp_sharding_startegy: str = ""
weighting_scheme: str = ""
logit_mean: float = 0.0
logit_std: float = 1.0
mode_scale: float = 0.0
num_euler_timesteps: int = 0
lr_num_cycles: int = 0
lr_power: float = 0.0
min_lr_ratio: float = 0.5 # minimum learning rate ratio for cosine_with_min_lr scheduler
not_apply_cfg_solver: bool = False
distill_cfg: float = 0.0
scheduler_type: str = ""
linear_quadratic_threshold: float = 0.0
linear_range: float = 0.0
weight_decay: float = 0.0
betas: str = "0.9,0.999" # betas for optimizer, format: "beta1,beta2"
use_ema: bool = False
multi_phased_distill_schedule: str = ""
pred_decay_weight: float = 0.0
pred_decay_type: str = ""
hunyuan_teacher_disable_cfg: bool = False
# master_weight_type
master_weight_type: str = ""
# VSA training decay parameters
VSA_decay_rate: float = 0.01 # decay rate -> 0.02
VSA_decay_interval_steps: int = 1 # decay interval steps -> 50
# LoRA training parameters
lora_rank: int | None = None
lora_alpha: int | None = None
lora_training: bool = False
# distillation args
generator_update_interval: int = 5
dfake_gen_update_ratio: int = 5 # self-forcing: how often to train generator vs critic
min_timestep_ratio: float = 0.2
max_timestep_ratio: float = 0.98
real_score_guidance_scale: float = 3.5
fake_score_learning_rate: float = 0.0 # separate learning rate for fake_score_transformer, if 0.0, use learning_rate
fake_score_lr_scheduler: str = "constant" # separate lr scheduler for fake_score_transformer, if not set, use lr_scheduler
fake_score_betas: str = "0.9,0.999" # betas for fake score optimizer, format: "beta1,beta2"
training_state_checkpointing_steps: int = 0 # for resuming training
weight_only_checkpointing_steps: int = 0 # for inference
log_visualization: bool = False
# simulate generator forward to match inference
simulate_generator_forward: bool = False
warp_denoising_step: bool = False
intermediate_latents_visualization: bool = False
# Self-forcing specific arguments
num_frame_per_block: int = 3
independent_first_frame: bool = False
enable_gradient_masking: bool = True
gradient_mask_last_n_frames: int = 21
validate_cache_structure: bool = False # Debug flag for cache validation
same_step_across_blocks: bool = False # Use same exit timestep for all blocks
last_step_only: bool = False # Only use the last timestep for training
context_noise: int = 0 # Context noise level for cache updates
@classmethod
def from_cli_args(cls, args: argparse.Namespace) -> "TrainingArgs":
provided_args = clean_cli_args(args)
# Get all fields from the dataclass
attrs = [attr.name for attr in dataclasses.fields(cls)]
logger.info(provided_args)
# Create a dictionary of attribute values, with defaults for missing attributes
kwargs: dict[str, Any] = {}
for attr in attrs:
if attr == 'pipeline_config':
pipeline_config = PipelineConfig.from_kwargs(provided_args)
kwargs[attr] = pipeline_config
elif attr == 'mode':
# Convert string to ExecutionMode enum
mode_value = getattr(args, attr, ExecutionMode.FINETUNING.value)
kwargs[attr] = ExecutionMode.from_string(
mode_value) if isinstance(mode_value, str) else mode_value
elif attr == 'workload_type':
# Convert string to WorkloadType enum
workload_type_value = getattr(args, 'workload_type',
WorkloadType.T2V.value)
kwargs[attr] = WorkloadType.from_string(
workload_type_value) if isinstance(
workload_type_value, str) else workload_type_value
# Use getattr with default value from the dataclass for potentially missing attributes
else:
# Get the field to check its default value
field = dataclasses.fields(cls)[next(
i for i, f in enumerate(dataclasses.fields(cls))
if f.name == attr)]
# Check if the attribute is provided in args
if hasattr(args, attr):
value = getattr(args, attr)
else:
# Use the field's default value
if field.default_factory is not dataclasses.MISSING:
value = field.default_factory()
elif field.default is not dataclasses.MISSING:
value = field.default
else:
# No default value, use None
value = None
kwargs[attr] = value
return cls(**kwargs) # type: ignore
@staticmethod
def add_cli_args(parser: FlexibleArgumentParser) -> FlexibleArgumentParser:
parser.add_argument("--data-path",
type=str,
required=True,
help="Path to parquet files")
parser.add_argument("--dataloader-num-workers",
type=int,
required=True,
help="Number of workers for dataloader")
parser.add_argument("--num-height",
type=int,
required=True,
help="Number of heights")
parser.add_argument("--num-width",
type=int,
required=True,
help="Number of widths")
parser.add_argument("--num-frames",
type=int,
required=True,
help="Number of frames")
# Training batch and model configuration
parser.add_argument("--train-batch-size",
type=int,
required=True,
help="Training batch size")
parser.add_argument("--num-latent-t",
type=int,
required=True,
help="Number of latent time steps")
parser.add_argument("--group-frame",
action=StoreBoolean,
help="Whether to group frames during training")
parser.add_argument("--group-resolution",
action=StoreBoolean,
help="Whether to group resolutions during training")
# Model paths
parser.add_argument("--pretrained-model-name-or-path",
type=str,
required=True,
help="Path to pretrained model or model name")
parser.add_argument("--dit-model-name-or-path",
type=str,
required=False,
help="Path to DiT model or model name")
parser.add_argument("--cache-dir",
type=str,
help="Directory to cache models")
# DMD model paths - separate paths for each network
parser.add_argument(
"--generator-model-path",
type=str,
help="Path to generator (student) model for DMD distillation")
parser.add_argument(
"--real-score-model-path",
type=str,
help="Path to real score (teacher) model for DMD distillation")
parser.add_argument(
"--fake-score-model-path",
type=str,
help="Path to fake score (critic) model for DMD distillation")
# Diffusion settings
parser.add_argument("--ema-decay",
type=float,
default=0.999,
help="EMA decay rate")
parser.add_argument("--ema-start-step",
type=int,
default=0,
help="Step to start EMA")
parser.add_argument("--training-cfg-rate",
type=float,
help="Classifier-free guidance scale")
parser.add_argument(
"--precondition-outputs",
action=StoreBoolean,
help="Whether to precondition the outputs of the model")
# Validation and logging
parser.add_argument("--validation-dataset-file",
type=str,
help="Path to unprocessed validation dataset")
parser.add_argument("--validation-preprocessed-path",
type=str,
help="Path to processed validation dataset")
parser.add_argument("--validation-sampling-steps",
type=str,
help="Validation sampling steps")
parser.add_argument("--validation-guidance-scale",
type=str,
help="Validation guidance scale")
parser.add_argument("--validation-steps",
type=float,
help="Number of validation steps")
parser.add_argument("--log-validation",
action=StoreBoolean,
help="Whether to log validation results")
parser.add_argument("--tracker-project-name",
type=str,
help="Project name for tracking")
parser.add_argument("--wandb-run-name",
type=str,
help="Run name for wandb")
parser.add_argument("--seed",
type=int,
default=42,
help="Seed for deterministic training")
# Output configuration
parser.add_argument("--output-dir",
type=str,
required=True,
help="Output directory for checkpoints and logs")
parser.add_argument("--checkpoints-total-limit",
type=int,
help="Maximum number of checkpoints to keep")
parser.add_argument("--checkpointing-steps",
type=int,
help="Steps between checkpoints")
parser.add_argument(
"--training-state-checkpointing-steps",
type=int,
help=
"Steps between training state checkpoints (for resuming training)")
parser.add_argument(
"--weight-only-checkpointing-steps",
type=int,
help="Steps between weight-only checkpoints (for inference)")
parser.add_argument("--resume-from-checkpoint",
type=str,
help="Path to checkpoint to resume from")
parser.add_argument(
"--init-weights-from-safetensors",
type=str,
help="Path to safetensors file for initial weight loading")
parser.add_argument("--logging-dir",
type=str,
help="Directory for logging")
# Training configuration
parser.add_argument("--num-train-epochs",
type=int,
help="Number of training epochs")
parser.add_argument("--max-train-steps",
type=int,
help="Maximum number of training steps")
parser.add_argument("--gradient-accumulation-steps",
type=int,
help="Number of steps to accumulate gradients")
parser.add_argument("--learning-rate",
type=float,
required=True,
help="Learning rate")
parser.add_argument("--scale-lr",
action=StoreBoolean,
help="Whether to scale learning rate")
parser.add_argument("--lr-scheduler",
type=str,
default="constant",
help="Learning rate scheduler type")
parser.add_argument("--lr-warmup-steps",
type=int,
default=10,
help="Number of warmup steps for learning rate")
parser.add_argument("--max-grad-norm",
type=float,
help="Maximum gradient norm")
parser.add_argument("--enable-gradient-checkpointing-type",
type=str,
choices=["full", "ops", "block_skip"],
default=None,
help="Gradient checkpointing type")
parser.add_argument("--selective-checkpointing",
type=float,
help="Selective checkpointing threshold")
parser.add_argument("--mixed-precision",
type=str,
help="Mixed precision training type")
parser.add_argument("--train-sp-batch-size",
type=int,
help="Training spatial parallelism batch size")
parser.add_argument("--fsdp-sharding-strategy",
type=str,
help="FSDP sharding strategy")
parser.add_argument(
"--weighting_scheme",
type=str,
default="uniform",
choices=["sigma_sqrt", "logit_normal", "mode", "cosmap", "uniform"],
)
parser.add_argument(
"--logit_mean",
type=float,
default=0.0,
help="mean to use when using the `'logit_normal'` weighting scheme.",
)
parser.add_argument(
"--logit_std",
type=float,
default=1.0,
help="std to use when using the `'logit_normal'` weighting scheme.",
)
parser.add_argument(
"--mode_scale",
type=float,
default=1.29,
help=
"Scale of mode weighting scheme. Only effective when using the `'mode'` as the `weighting_scheme`.",
)
# Additional training parameters
parser.add_argument("--num-euler-timesteps",
type=int,
help="Number of Euler timesteps")
parser.add_argument("--lr-num-cycles",
type=int,
help="Number of learning rate cycles")
parser.add_argument("--lr-power",
type=float,
help="Learning rate power")
parser.add_argument(
"--min-lr-ratio",
type=float,
default=TrainingArgs.min_lr_ratio,
help="Minimum learning rate ratio for cosine_with_min_lr scheduler")
parser.add_argument("--not-apply-cfg-solver",
action=StoreBoolean,
help="Whether to not apply CFG solver")
parser.add_argument("--distill-cfg",
type=float,
help="Distillation CFG scale")
parser.add_argument("--scheduler-type", type=str, help="Scheduler type")
parser.add_argument("--linear-quadratic-threshold",
type=float,
help="Linear quadratic threshold")
parser.add_argument("--linear-range", type=float, help="Linear range")
parser.add_argument("--weight-decay", type=float, help="Weight decay")
parser.add_argument("--betas",
type=str,
default=TrainingArgs.betas,
help="Betas for optimizer (format: 'beta1,beta2')")
parser.add_argument("--use-ema",
action=StoreBoolean,
help="Whether to use EMA")
parser.add_argument("--multi-phased-distill-schedule",
type=str,
help="Multi-phased distillation schedule")
parser.add_argument("--pred-decay-weight",
type=float,
help="Prediction decay weight")
parser.add_argument("--pred-decay-type",
type=str,
help="Prediction decay type")
parser.add_argument("--hunyuan-teacher-disable-cfg",
action=StoreBoolean,
help="Whether to disable CFG for Hunyuan teacher")
parser.add_argument("--master-weight-type",
type=str,
help="Master weight type")
# VSA parameters for training with dense to sparse adaption
parser.add_argument(
"--VSA-decay-rate", # decay rate, how much sparsity you want to decay each step
type=float,
default=TrainingArgs.VSA_decay_rate,
help="VSA decay rate")
parser.add_argument(
"--VSA-decay-interval-steps", # how many steps for training with current sparsity
type=int,
default=TrainingArgs.VSA_decay_interval_steps,
help="VSA decay interval steps")
parser.add_argument("--lora-training",
action=StoreBoolean,
help="Whether to use LoRA training")
parser.add_argument("--lora-rank", type=int, help="LoRA rank")
parser.add_argument("--lora-alpha", type=int, help="LoRA alpha")
# V-MoBA parameters
parser.add_argument(
"--moba-config-path",
type=str,
default=None,
help=
"Path to a JSON file containing V-MoBA specific configurations.",
)
# Distillation arguments
parser.add_argument("--generator-update-interval",
type=int,
default=TrainingArgs.generator_update_interval,
help="Ratio of student updates to critic updates.")
parser.add_argument(
"--dfake-gen-update-ratio",
type=int,
default=TrainingArgs.dfake_gen_update_ratio,
help=
"Self-forcing: How often to train generator vs critic (train generator every N steps)."
)
parser.add_argument("--min-timestep-ratio",
type=float,
default=TrainingArgs.min_timestep_ratio,
help="Minimum step ratio")
parser.add_argument("--max-timestep-ratio",
type=float,
default=TrainingArgs.max_timestep_ratio,
help="Maximum step ratio")
parser.add_argument("--real-score-guidance-scale",
type=float,
default=TrainingArgs.real_score_guidance_scale,
help="Teacher guidance scale")
parser.add_argument("--fake-score-learning-rate",
type=float,
default=TrainingArgs.fake_score_learning_rate,
help="Learning rate for fake score transformer")
parser.add_argument(
"--fake-score-betas",
type=str,
default=TrainingArgs.fake_score_betas,
help="Betas for fake score optimizer (format: 'beta1,beta2')")
parser.add_argument(
"--fake-score-lr-scheduler",
type=str,
default=TrainingArgs.fake_score_lr_scheduler,
help="Learning rate scheduler for fake score transformer")
parser.add_argument("--log-visualization",
action=StoreBoolean,
help="Whether to log visualization")
parser.add_argument(
"--simulate-generator-forward",
action=StoreBoolean,
help="Whether to simulate generator forward to match inference")
parser.add_argument(
"--warp-denoising-step",
action=StoreBoolean,
help=
"Whether to warp denoising step according to the scheduler time shift"
)
# Self-forcing specific arguments
parser.add_argument(
"--num-frame-per-block",
type=int,
default=TrainingArgs.num_frame_per_block,
help="Number of frames per block for causal generation")
parser.add_argument(
"--independent-first-frame",
action=StoreBoolean,
help="Whether the first frame is independent in causal generation")
parser.add_argument(
"--enable-gradient-masking",
action=StoreBoolean,
help="Whether to enable frame-level gradient masking")
parser.add_argument(
"--gradient-mask-last-n-frames",
type=int,
default=TrainingArgs.gradient_mask_last_n_frames,
help="Number of last frames to enable gradients for")
parser.add_argument(
"--validate-cache-structure",
action=StoreBoolean,
help="Whether to validate KV cache structure (debug flag)")
parser.add_argument(
"--same-step-across-blocks",
action=StoreBoolean,
help="Whether to use the same exit timestep for all blocks")
parser.add_argument(
"--last-step-only",
action=StoreBoolean,
help="Whether to only use the last timestep for training")
parser.add_argument("--context-noise",
type=int,
default=TrainingArgs.context_noise,
help="Context noise level for cache updates")
return parser
def parse_int_list(value: str) -> list[int]:
if not value:
return []
return [int(x.strip()) for x in value.split(",")]