[feat] Refactor training framework into fastvideo/train (#1159)

Co-authored-by: Peiyuan Zhang <a1286225768@gmail.com>
This commit is contained in:
alexzms
2026-03-09 15:16:42 -07:00
committed by GitHub
co-authored by Peiyuan Zhang
parent 2b13e117f0
commit bc27a032c5
68 changed files with 8720 additions and 184 deletions
+24 -2
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@@ -1,6 +1,6 @@
# FastVideo-WorldModel — Codebase Map
High-level structural index for agent orientation. Updated 2026-03-02.
High-level structural index for agent orientation. Updated 2026-03-08.
## Repository Layout
@@ -22,7 +22,18 @@ FastVideo-WorldModel/
│ ├── pipelines/ # End-to-end pipelines
│ │ ├── basic/ # Per-model pipelines (wan/, ltx2/, ...)
│ │ └── stages/ # Reusable pipeline stages
│ ├── training/ # Training infrastructure
│ ├── train/ # Refactored training framework (YAML-driven, preferred)
│ │ ├── trainer.py # Main training loop coordinator
│ │ ├── entrypoint/ # Training entrypoint (train.py) + checkpoint conversion
│ │ ├── methods/ # Training algorithms (FineTune, DFSFT, DMD2, SelfForcing)
│ │ │ ├── base.py # TrainingMethod ABC
│ │ │ ├── fine_tuning/ # FineTuneMethod, DiffusionForcingSFTMethod
│ │ │ └── distribution_matching/ # DMD2Method, SelfForcingMethod
│ │ ├── models/ # Per-role model wrappers (ModelBase, CausalModelBase)
│ │ │ └── wan/ # WanModel, WanCausalModel
│ │ ├── callbacks/ # Composable hooks (grad_clip, ema, validation)
│ │ └── utils/ # Config, builder, checkpoint, optimizer, tracking
│ ├── training/ # Legacy training infrastructure (being phased out)
│ │ ├── trackers.py # W&B tracker (BaseTracker → WandbTracker)
│ │ ├── training_utils.py # Checkpointing, grad clipping, state dicts
│ │ ├── training_pipeline.py # Base training pipeline
@@ -65,6 +76,17 @@ FastVideo-WorldModel/
## Key Training Entrypoints
### New framework (`fastvideo/train/`) — preferred
| Method | Config Example | Launch Pattern |
|--------|---------------|----------------|
| FineTune (Wan) | `examples/train/finetune_wan2.1_t2v_1.3B_vsa_*.yaml` | `torchrun -m fastvideo.train.entrypoint.train --config <yaml>` |
| DFSFT (Wan causal) | `examples/train/dfsft_wan_causal_t2v_1.3B.yaml` | `torchrun -m fastvideo.train.entrypoint.train --config <yaml>` |
| DMD2 distillation | `examples/train/distill_wan2.1_t2v_1.3B_dmd2.yaml` | `torchrun -m fastvideo.train.entrypoint.train --config <yaml>` |
| Self-Forcing | `examples/train/self_forcing_wan_causal_t2v_1.3B.yaml` | `torchrun -m fastvideo.train.entrypoint.train --config <yaml>` |
### Legacy pipelines (`fastvideo/training/`) — being phased out
| Pipeline | Entrypoint | Launch Pattern |
|----------|-----------|----------------|
| Wan T2V finetune | `fastvideo/training/wan_training_pipeline.py` | `torchrun --nproc_per_node N` |