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pfl: Python framework for Private Federated Learning simulations

GitHub License CircleCI PyPI - Python Version

Documentation website: https://apple.github.io/pfl-research

pfl is a Python framework developed at Apple to empower researchers to run efficient simulations with privacy-preserving federated learning (FL) and disseminate the results of their research in FL. We are a team comprising engineering and research expertise, and we encourage researchers to publish their papers, with this code, with confidence.

The framework is not intended to be used for third-party FL deployments but the results of the simulations can be tremendously useful in actual FL deployments. We hope that pfl will promote open research in FL and its effective dissemination.

pfl provides several useful features, including the following:

  • Get started quickly trying out PFL for your use case with your existing model and data.
  • Iterate quickly with fast simulations utilizing multiple levels of distributed training (multiple processes, GPUs and machines).
  • Flexibility and expressiveness - when a researcher has a PFL idea to try, pfl has flexible APIs to express these ideas.
  • Scalable simulations for large experiments with state-of-the-art algorithms and models.
  • Support both PyTorch and TensorFlow.
  • Unified benchmarks for datasets that have been vetted for both PyTorch and TensorFlow.
  • Support other models in addition to neural networks, e.g. GBDTs. Switching between types of models is seamless.
  • Tight integration with privacy features, including common mechanisms for local and central differential privacy.

Results from benchmarks are maintained in this Weights & Biases report.

Installation

Installation instructions can be found here. pfl is available on PyPI and a full installation be done with pip:

pip install 'pfl[tf,pytorch,trees]'

Getting started - tutorial notebooks

To try out pfl immediately without installation, we provide several colab notebooks for learning the different components in pfl hands-on.

  • Introduction to Federated Learning with CIFAR10 and TensorFlow.
  • Introduction to PFL research with FLAIR and PyTorch.
  • Introduction to Differential Privacy (DP) with Federated Learning.
  • Creating Federated Dataset for PFL Experiment.

We also support MLX!

But you have to run this notebook locally on your Apple silicon, see all Jupyter notebooks available here.

Getting started - benchmarks

pfl aims to streamline the benchmarking process of testing hypotheses in the Federated Learning paradigm. The official benchmarks are available in the benchmarks directory, using a variety of realistic dataset-model combinations with and without differential privacy (yes, we do also have CIFAR10).

Copying these examples is a great starting point for doing your own research. See the quickstart on how to start converging a model on the simplest benchmark (CIFAR10) in just a few minutes.

Contributing

Researchers are invited to contribute to the framework. Please, see here for more details.

Citing pfl-research

@article{granqvist2024pfl,
  title={pfl-research: simulation framework for accelerating research in Private Federated Learning},
  author={Granqvist, Filip and Song, Congzheng and Cahill, {\'A}ine and van Dalen, Rogier and Pelikan, Martin and Chan, Yi Sheng and Feng, Xiaojun and Krishnaswami, Natarajan and Jina, Vojta and Chitnis, Mona},
  journal={arXiv preprint arXiv:2404.06430},
  year={2024},
}