Supercharging Federated Learning with Flower and NVIDIA FLARE
Holger R. Roth, Daniel J. Beutel, Yan Cheng, Javier Fernandez Marques, Heng Pan, Chester Chen, Zhihong Zhang, Yuhong Wen, Sean Yang, Isaac, Yang, Yuan-Ting Hsieh, Ziyue Xu, Daguang Xu, Nicholas D. Lane, Andrew Feng
TL;DR
The paper addresses interoperability between two leading FL ecosystems, Flower and NVIDIA FLARE, to enable cross-framework production deployment. It proposes an integration that routes Flower's gRPC-based communication through FLARE so Flower projects can run unmodified inside the FLARE runtime. Initial experiments demonstrate reproducible results and show a path to richer monitoring through FLARE's experiment tracking in a hybrid setup. The work broadens the FLARE ecosystem by marrying Flower's ease of use and community with FLARE's production-grade features, setting the stage for more scalable, interoperable federated deployments across institutions.
Abstract
Several open-source systems, such as Flower and NVIDIA FLARE, have been developed in recent years while focusing on different aspects of federated learning (FL). Flower is dedicated to implementing a cohesive approach to FL, analytics, and evaluation. Over time, Flower has cultivated extensive strategies and algorithms tailored for FL application development, fostering a vibrant FL community in research and industry. Conversely, FLARE has prioritized the creation of an enterprise-ready, resilient runtime environment explicitly designed for FL applications in production environments. In this paper, we describe our initial integration of both frameworks and show how they can work together to supercharge the FL ecosystem as a whole. Through the seamless integration of Flower and FLARE, applications crafted within the Flower framework can effortlessly operate within the FLARE runtime environment without necessitating any modifications. This initial integration streamlines the process, eliminating complexities and ensuring smooth interoperability between the two platforms, thus enhancing the overall efficiency and accessibility of FL applications.
