| { | |
| "doc": { | |
| "base": "base optimizer configuration for unet and text encoder", | |
| "text_encoder_overrides": "text encoder config overrides", | |
| "text_encoder_lr_scale": "if LR not set on text encoder, sets the Lr to a multiple of the Base LR. for example, if base `lr` is 2e-6 and `text_encoder_lr_scale` is 0.5, the text encoder's LR will be set to `1e-6`.", | |
| "-----------------": "-----------------", | |
| "optimizer": "adamw, adamw8bit, lion", | |
| "optimizer_desc": "'adamw' in standard 32bit, 'adamw8bit' is bitsandbytes, 'lion' is lucidrains", | |
| "lr": "learning rate, if null will use CLI or main JSON config value", | |
| "lr_scheduler": "'constant' or 'cosine'", | |
| "lr_warmup_steps": "number of steps to warmup LR to target LR, if null will use CLI or default a value based on max epochs", | |
| "lr_decay_steps": "number of steps to decay LR to zero for cosine, if null will use CLI or default a value based on max epochs", | |
| "betas": "exponential decay rates for the moment estimates", | |
| "epsilon": "value added to denominator for numerical stability, unused for lion", | |
| "weight_decay": "weight decay (L2 penalty)", | |
| "------------------": "-----------------", | |
| "freeze_embeddings": "whether to freeze the text embeddings", | |
| "freeze_front_n_layers": "if not null, freeze the front N layers of the text encoder (you can pass eg -2 to leave only the last 2 layers unfrozen)", | |
| "freeze_final_layer_norm": "whether to freeze the text encoder's final layer norm" | |
| }, | |
| "base": { | |
| "optimizer": "adamw8bit", | |
| "lr": 2e-6, | |
| "lr_scheduler": "cosine", | |
| "lr_decay_steps": null, | |
| "lr_warmup_steps": null, | |
| "betas": [0.9, 0.999], | |
| "epsilon": 1e-8, | |
| "weight_decay": 0.010 | |
| }, | |
| "text_encoder_overrides": { | |
| "optimizer": null, | |
| "lr": 3e-7, | |
| "lr_scheduler": null, | |
| "lr_decay_steps": null, | |
| "lr_warmup_steps": null, | |
| "betas": null, | |
| "epsilon": null, | |
| "weight_decay": null | |
| }, | |
| "text_encoder_freezing": { | |
| "unfreeze_last_n_layers": 2 | |
| } | |
| } | |