RuntimeWarning: divide by zero encountered in log

[billwuhao]

When using Comfyui, many users encounter such errors, RuntimeWarning: divide by zero encountered in log.

billwuhao/ComfyUI_NotaGen#4

billwuhao/ComfyUI_NotaGen#3

I can't find where the error came from. Can you give me some tips or suggestions

[ElectricAlexis]

Hi, thank you for your amazing Comfiui again :D

I guess there may be two notes when using NotaGen for generation with specific prompts:

1. The pre-trained models (NotaGen-small/medium/large) can not generate music based on ''period-composer-instrumentation'' prompts. On the contrast, NotaGen-X supports prompt-guided generation.

2. The period, composer, and instrumentation in prompts cannot be freely combined. For example, in billwuhao/ComfyUI_NotaGen#4, I saw an combination of ''Romantic-Bach, Johann Sebastian-Keyboard''. However, since Bach is not associated with the Romantic period, such prompts do not exist in our training dataset, which may lead to generation issues. All valid prompt combinations are listed in gradio/prompts.txt.

Regarding the divide by zero error during inference, I’ve encountered this as well, but the issue typically won't cause big problem as long as the inference output isn’t interrupted.

Hope this helps! 😊