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ComfyDeploy: How ComfyUI-FastSDCPU works in ComfyUI?

What is ComfyUI-FastSDCPU?

A set of nodes for interfacing with the FastSDCPU webserver.

How to install it in ComfyDeploy?

Head over to the machine page

  1. Click on the "Create a new machine" button
  2. Select the Edit build steps
  3. Add a new step -> Custom Node
  4. Search for ComfyUI-FastSDCPU and select it
  5. Close the build step dialig and then click on the "Save" button to rebuild the machine

ComfyUI-FastSDCPU

A set of nodes for interfacing with the FastSDCPU webserver

Setup

  1. Install the extension with dependencies

  2. Install FastSDCPU (clone the repo, run install.bat/install.sh)

  3. (Recommended) Set the environment variable DEVICE=GPU:

    Bash: export DEVICE=GPU

    Powershell: $env:DEVICE = "GPU"

    CMD: set DEVICE=GPU

  4. Run start-webserver.bat/start-webserver.sh

Converting your own models

Fastsdcpu supports regular diffusers models as well as openvino models. Openvino models are much faster than standard models on intel cpus and igpus but they also require significantly more memory. To convert them you can use the lcm-openvino-converter repo. This repo contains commands to both apply an lcm lora and convert the model to openvino. The lcm conversion isn't required but because fastsdcpu is optimised around LCM models regular models will use inefficient sampling parameters which will require more steps than normal.

Custom models should be placed into comfyui's diffusers folder. Selecting local models only works when the webserver is run on the same system as the comfyui instance. If the server is not local you will have to move the folder to the server and specify the folder path that's on the server.

Previews

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