[UPDATE]: The Automatic1111-directML branch now supports Microsoft Olive under the Automatic1111 WebUI interface, which allows for generating optimized models and running them all under the Automatic1111 WebUI, without a separate branch needed to optimize for AMD platforms. The original blog with additional instructions on how to manually generate and run Stable Diffusion Automatic1111 with Olive Optimizations is available here - ORIGINAL HOW-TO GUIDE
Did you know you can enable Stable Diffusion with Microsoft Olive under Automatic1111(Xformer) to get a significant speedup via Microsoft DirectML on Windows? Microsoft and AMD have been working together to optimize the Olive path on AMD hardware, accelerated via the Microsoft DirectML platform API and the AMD User Mode Driver’s ML (Machine Learning) software layer allowing users access to the power of the AMD GPU’s AI (Artificial Intelligence) capabilities.
Olive is a Python tool that can be used to convert, optimize, quantize, and auto-tune models for optimal inference performance with ONNX Runtime execution providers like DirectML. Olive greatly simplifies model processing by providing a single toolchain to compose optimization techniques, which is especially important with more complex models like Stable Diffusion that are sensitive to the ordering of optimization techniques. The DirectML sample for Stable Diffusion applies the following techniques:
Model conversion: translates the base models from PyTorch to ONNX.
Transformer graph optimization: fuses subgraphs into multi-head attention operators and eliminating inefficient from conversion.
Quantization: converts most layers from FP32 to FP16 to reduce the model's GPU memory footprint and improve performance.
Combined, the above optimizations enable DirectML to leverage AMD GPUs for greatly improved performance when performing inference with transformer models like Stable Diffusion.
3. Generate and Run Olive Optimized Stable Diffusion Models with Automatic1111 WebUI on AMD GPUs
Here is how to generate Microsoft Olive optimized stable diffusion model and run it using Automatic1111 WebUI:
Open Anaconda/Miniconda Terminal.
Enter the following commands in the terminal, followed by the enter key, to install Automatic1111 WebUI
ONNX Model ID = stabilityai/stable-diffusion-xl-base-1.0
Uncheck “Safety Checker”
Select the optimized model that will appear in the checkpoint dropdown
Go to the "txt2img" tab and run your inference!
4. Disclaimers & Footnotes
Links to third-party sites are provided for convenience and unless explicitly stated, AMD is not responsible for the contents of such linked sites, and no endorsement is implied. GD-98
Testing conducted by AMD as of August 15th, 2023, on a test system configured with a Ryzen9 7950X 3D(4.2GHz) CPU, 32GB DDR5, Radeon RX 7900XTX GPU, Windows 11 Pro, with AMD Software: Adrenalin Edition 23.7.2, using the application Stable Diffusion 1.5 with Microsoft Olive under Automatic 1111 vs. Default Automatic 1111. Performance may vary. System manufacturers may vary configurations, yielding different results. RS-587
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