FAQ

TIP

When you encounter a problem, you can try the following methods step by step and check if the problem is resolved:

• Pull the latest code and update the environment with uv pip install --group main -e ..

• Check if the model is downloaded completely and re-run the model download command.

• Issues: Check the Issues and Discussions of the WeClone GitHub repository for similar problems.

• Use DeepWiki to talk directly to the source code.

Also, you can refer to the common questions on this page.
If the problem is not resolved, please raise it in Issues.

What to do if the device memory is insufficient/Out-of-memory?

• Adjust training parameters
  1. Reduce the batch size: per_device_train_batch_size: 1
  2. Reduce the maximum sequence length: cutoff_len: 512
  3. Replace model operators: enable_liger_kernel: true and use_unsloth_gc: true
  4. Use DeepSpeed ZeRO-3 or FSDP to split model weights across multiple devices or use CPU Offloading
  5. Fine-tune with a quantized model (weights cannot be merged into the original model)
  6. Set quantization_bit: 4 to quantize model parameters (only for the LoRA method)
• You can first rent a GPU on an online cloud platform for fine-tuning, then download the fine-tuned model_output folder to your local machine for deployment and inference.
• For multimodal models, reduce image_max_pixels and max_image_num.

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What to do if the fine-tuning effect is not ideal?

• Use a model with a larger parameter scale and more chat history data for fine-tuning.
  • 7B models generally have poor results, 14B is barely acceptable, and 32B is better.
• Use a multimodal model for fine-tuning to reduce the number of dataset cuts.
• Enable data cleaning.

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LLaMA-Factory fine-tuning related questions:

• 
• LLaMA-Factory| FAQs | Common Questions

The chat history CSV file opens with garbled characters

Do not use Excel to open it. Use an IDE such as VS Code.

Windows Environment Issues

• Set the "dataloader_num_workers": 0 parameter in train_sft_args to solve the Can't pickle local object problem in the Windows environment.