A ComfyUI custom node extension designed to resolve multi-GPU conflicts for ControlNet preprocessors, the ComfyUI GPU Preprocessor Wrapper ensures that model components remain consistently loaded on the same device. This tool effectively prevents errors related to device mismatches during model loading in setups utilizing multiple GPUs.
- Provides wrapper nodes that enforce device consistency during preprocessor model loading.
- Supports various ControlNet preprocessors, allowing seamless integration without altering existing workflows.
- Automatically restores original device management behavior after model loading, ensuring stable multi-GPU operations.
Context
The ComfyUI GPU Preprocessor Wrapper is a specialized extension for ComfyUI that addresses the challenges faced in multi-GPU configurations, particularly when using ControlNet preprocessors. Its primary function is to mitigate errors caused by inconsistent device assignments during model loading, enhancing the overall reliability of GPU resource management.
Key Features & Benefits
This tool offers practical features that directly enhance user experience by allowing users to replace standard ControlNet preprocessors with GPU wrapper versions. Each wrapper ensures that models load on a specified device (cuda:0), which eliminates the common "Expected all tensors to be on the same device" errors, thus improving workflow efficiency.
Advanced Functionalities
The wrapper nodes temporarily override the device management function during the loading process, ensuring that all model components are loaded onto the same GPU. This atomic operation is designed to prevent race conditions and maintain stability in multi-GPU environments, making it a robust solution for complex processing tasks.
Practical Benefits
By utilizing the ComfyUI GPU Preprocessor Wrapper, users can significantly streamline their workflows, reducing the likelihood of device conflicts and enhancing the quality of model generation. This leads to a more efficient use of GPU resources and allows for smoother operation in high-throughput scenarios, such as video processing.
Credits/Acknowledgments
The extension is developed under the same GPL-3.0 license as ComfyUI, ensuring that it remains open-source and adaptable for community contributions.