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examples: Stable Diffusion torch.compile
- Tutorial for using torch.compile with Stable Diffusion and Torch-TensorRT - Demonstration of output images without need to rerun the whole script upon initial compilation of the docs
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""" | ||
.. _torch_compile_stable_diffusion: | ||
Torch Compile Stable Diffusion | ||
====================================================== | ||
This interactive script is intended as a sample of the Torch-TensorRT workflow with `torch.compile` on a Stable Diffusion model. A sample output is featured below: | ||
.. image:: /tutorials/images/majestic_castle.png | ||
:width: 512px | ||
:height: 512px | ||
:scale: 50 % | ||
:align: right | ||
""" | ||
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# %% | ||
# Imports and Model Definition | ||
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
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import torch | ||
from diffusers import DiffusionPipeline | ||
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import torch_tensorrt | ||
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model_id = "CompVis/stable-diffusion-v1-4" | ||
device = "cuda:0" | ||
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# Instantiate Stable Diffusion Pipeline with FP16 weights | ||
pipe = DiffusionPipeline.from_pretrained( | ||
model_id, revision="fp16", torch_dtype=torch.float16 | ||
) | ||
pipe = pipe.to(device) | ||
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backend = "torch_tensorrt" | ||
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# Optimize the UNet portion with Torch-TensorRT | ||
pipe.unet = torch.compile( | ||
pipe.unet, | ||
backend=backend, | ||
options={ | ||
"truncate_long_and_double": True, | ||
"precision": torch.float16, | ||
}, | ||
dynamic=False, | ||
) | ||
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# %% | ||
# Inference | ||
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
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prompt = "a majestic castle in the clouds" | ||
image = pipe(prompt).images[0] | ||
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image.save("images/majestic_castle.png") | ||
image.show() |