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2026-05-11 13:14:05 +00:00
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packages/ltx-trainer/docs/configuration-reference.md
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@@ -215,18 +215,20 @@ Hardware acceleration and compute optimization settings.
```yaml
acceleration:
mixed_precision_mode: "bf16" # "no", "fp16", or "bf16"
quantization: null # Quantization options
load_text_encoder_in_8bit: false # Load text encoder in 8-bit
mixed_precision_mode: "bf16" # "no", "fp16", or "bf16"
quantization: null # Quantization options
load_text_encoder_in_8bit: false # Load text encoder in 8-bit
offload_optimizer_during_validation: false # Offload optimizer state to CPU during validation
```
**Key parameters:**
| Parameter | Description |
|-----------------------------|------------------------------------------------------------------------------------|
| `mixed_precision_mode` | Precision mode - `"bf16"` recommended for modern GPUs |
| `quantization` | Model quantization: `null`, `"int8-quanto"`, `"int4-quanto"`, `"fp8-quanto"`, etc. |
| `load_text_encoder_in_8bit` | Load the Gemma text encoder in 8-bit to save GPU memory |
| Parameter | Description |
|---------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `mixed_precision_mode` | Precision mode - `"bf16"` recommended for modern GPUs |
| `quantization` | Model quantization: `null`, `"int8-quanto"`, `"int4-quanto"`, `"fp8-quanto"`, etc. |
| `load_text_encoder_in_8bit` | Load the Gemma text encoder in 8-bit to save GPU memory |
| `offload_optimizer_during_validation` | Move optimizer state to CPU before validation video sampling and back afterwards. Useful when validation OOMs because VAE decoder + transformer + optimizer state can't coexist on the GPU (full fine-tune, high-rank LoRA). No effect for FSDP. |
### DataConfig