15 xFormers

JeLuF edited this page 2023-10-18 21:45:49 +02:00

Table of Contents

• Installing xFormers
• Removing/uninstalling xFormers

xFormers can speed up image generation (nearly twice as fast) and use less GPU memory. It's widely used and works quite well, but it can sometimes produce different images (for the same prompt+settings) compared to what you generated previously.

Important!! xFormers will only help on PCs with NVIDIA GPUs. It is not useful on CPU-only computers or M1/M2 Macs.

Installing xFormers

1. Double-click Developer Console.cmd (on Windows) or run ./developer_console.sh (on Linux/Mac)
2. Run python -m pip show torch torchvision (important: please make a note of these two versions, incase you need to revert back to them)
3. Run the follow command: python -m pip install --upgrade torch==2.0.1+cu118 torchvision==0.15.2+cu118 xformers==0.0.22 --extra-index-url https://download.pytorch.org/whl/cu118 or use the command generator (at the top of the page) from pytorch. That should be enough, you can now start Easy Diffusion like normal.

Removing/uninstalling xFormers

If you face any issues, please rollback by:

1. Double-click Developer Console.cmd (on Windows) or run ./developer_console.sh (on Linux/Mac)
2. Run python -m pip uninstall xformers
3. Optionally, revert the torch and torchvision version to what you had previously:

• Windows or Linux: Run python -m pip install torch==version_noted_above torchvision==version_noted_above --index-url https://download.pytorch.org/whl/cu116
• Mac: Run python -m pip install torch==version_noted_above torchvision==version_noted_above

Basics

• Installation
• How to Use
• Writing Prompts
• Image Modifiers
• Inpainting
• Samplers
• Summary of every UI option
• Common error messages (and solutions)

Intermediate

• Custom Models
• Prompt Syntax
• UI Plugins
• Embeddings
• LoRA
• SDXL
• ControlNet
• Seamless Tiling
• xFormers
• The beta channel

Advanced topics

• Run on Multiple GPUs
• Model Merging
• Custom Modifiers
• Config settings