Spaces ZeroGPU: Dynamic GPU Allocation for Spaces

ZeroGPU is a shared infrastructure that optimizes GPU usage for AI models and demos on Hugging Face Spaces. It dynamically allocates and releases NVIDIA H200 GPUs as needed, offering:

1. Free GPU Access: Enables cost-effective GPU usage for Spaces.
2. Multi-GPU Support: Allows Spaces to leverage multiple GPUs concurrently on a single application.

Unlike traditional single-GPU allocations, ZeroGPU’s efficient system lowers barriers for developers, researchers, and organizations to deploy AI models by maximizing resource utilization and power efficiency.

Using and hosting ZeroGPU Spaces

• Using existing ZeroGPU Spaces
  • ZeroGPU Spaces are available to use for free to all users. (Visit the curated list).
  • PRO users get x5 more daily usage quota and highest priority in GPU queues when using any ZeroGPU Spaces.
• Hosting your own ZeroGPU Spaces
  • Personal accounts: Subscribe to PRO to access ZeroGPU in the hardware options when creating a new Gradio SDK Space.
  • Organizations: Subscribe to the Enterprise Hub to enable ZeroGPU Spaces for all organization members.

Technical Specifications

• GPU Type: Nvidia H200 slice
• Available VRAM: 70GB per workload

Compatibility

ZeroGPU Spaces are designed to be compatible with most PyTorch-based GPU Spaces. While compatibility is enhanced for high-level Hugging Face libraries like transformers and diffusers, users should be aware that:

• Currently, ZeroGPU Spaces are exclusively compatible with the Gradio SDK.
• ZeroGPU Spaces may have limited compatibility compared to standard GPU Spaces.
• Unexpected issues may arise in some scenarios.

Supported Versions

• Gradio: 4+

• PyTorch: Almost all versions from 2.1.0 to latest are supported

  See full list

  • 2.1.0
  • 2.1.1
  • 2.1.2
  • 2.2.0
  • 2.2.2
  • 2.4.0
  • 2.5.1
  • 2.6.0
  • 2.7.1
  • 2.8.0

• Python: 3.10.13

Getting started with ZeroGPU

To utilize ZeroGPU in your Space, follow these steps:

1. Make sure the ZeroGPU hardware is selected in your Space settings.
2. Import the spaces module.
3. Decorate GPU-dependent functions with @spaces.GPU.

This decoration process allows the Space to request a GPU when the function is called and release it upon completion.

Example Usage

import spaces
from diffusers import DiffusionPipeline

pipe = DiffusionPipeline.from_pretrained(...)
pipe.to('cuda')

@spaces.GPU
def generate(prompt):
    return pipe(prompt).images

gr.Interface(
    fn=generate,
    inputs=gr.Text(),
    outputs=gr.Gallery(),
).launch()

Note: The @spaces.GPU decorator is designed to be effect-free in non-ZeroGPU environments, ensuring compatibility across different setups.

Duration Management

For functions expected to exceed the default 60-second of GPU runtime, you can specify a custom duration:

@spaces.GPU(duration=120)
def generate(prompt):
   return pipe(prompt).images

This sets the maximum function runtime to 120 seconds. Specifying shorter durations for quicker functions will improve queue priority for Space visitors.

Dynamic duration

@spaces.GPU also supports dynamic durations.

Instead of directly passing a duration, simply pass a callable that takes the same inputs as your decorated function and returns a duration value:

def get_duration(prompt, steps):
    step_duration = 3.75
    return steps * step_duration

@spaces.GPU(duration=get_duration)
def generate(prompt, steps):
   return pipe(prompt, num_inference_steps=steps).images

Compilation

ZeroGPU does not support torch.compile, but you can use PyTorch ahead-of-time compilation (requires torch 2.8+)

Check out this blogpost for a complete guide on ahead-of-time compilation on ZeroGPU.

Hosting Limitations

• Personal accounts (PRO subscribers): Maximum of 10 ZeroGPU Spaces.
• Organization accounts (Enterprise Hub): Maximum of 50 ZeroGPU Spaces.

By leveraging ZeroGPU, developers can create more efficient and scalable Spaces, maximizing GPU utilization while minimizing costs.

Recommendations

If your demo uses a large model, we recommend using optimizations like ahead-of-time compilation and flash-attention 3. You can learn how to leverage these with ZeroGPU in this post. These optimizations will help you to maximize the advantages of ZeroGPU hours and provide a better user experience.

Feedback

You can share your feedback on Spaces ZeroGPU directly on the HF Hub: https://huggingface.co/spaces/zero-gpu-explorers/README/discussions