Not All Federated Learning Algorithms Are Created Equal: A Performance Evaluation Study

Fuente: arXiv
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Autores principales: Baumgart, Gustav A., Shin, Jaemin, Payani, Ali, Lee, Myungjin, Kompella, Ramana Rao
Formato: Preprint
Publicado: 2024
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author Baumgart, Gustav A.
Shin, Jaemin
Payani, Ali
Lee, Myungjin
Kompella, Ramana Rao
author_facet Baumgart, Gustav A.
Shin, Jaemin
Payani, Ali
Lee, Myungjin
Kompella, Ramana Rao
contents Federated Learning (FL) emerged as a practical approach to training a model from decentralized data. The proliferation of FL led to the development of numerous FL algorithms and mechanisms. Many prior efforts have given their primary focus on accuracy of those approaches, but there exists little understanding of other aspects such as computational overheads, performance and training stability, etc. To bridge this gap, we conduct extensive performance evaluation on several canonical FL algorithms (FedAvg, FedProx, FedYogi, FedAdam, SCAFFOLD, and FedDyn) by leveraging an open-source federated learning framework called Flame. Our comprehensive measurement study reveals that no single algorithm works best across different performance metrics. A few key observations are: (1) While some state-of-the-art algorithms achieve higher accuracy than others, they incur either higher computation overheads (FedDyn) or communication overheads (SCAFFOLD). (2) Recent algorithms present smaller standard deviation in accuracy across clients than FedAvg, indicating that the advanced algorithms' performances are stable. (3) However, algorithms such as FedDyn and SCAFFOLD are more prone to catastrophic failures without the support of additional techniques such as gradient clipping. We hope that our empirical study can help the community to build best practices in evaluating FL algorithms.
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id arxiv_https___arxiv_org_abs_2403_17287
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Not All Federated Learning Algorithms Are Created Equal: A Performance Evaluation Study
Baumgart, Gustav A.
Shin, Jaemin
Payani, Ali
Lee, Myungjin
Kompella, Ramana Rao
Machine Learning
Distributed, Parallel, and Cluster Computing
Federated Learning (FL) emerged as a practical approach to training a model from decentralized data. The proliferation of FL led to the development of numerous FL algorithms and mechanisms. Many prior efforts have given their primary focus on accuracy of those approaches, but there exists little understanding of other aspects such as computational overheads, performance and training stability, etc. To bridge this gap, we conduct extensive performance evaluation on several canonical FL algorithms (FedAvg, FedProx, FedYogi, FedAdam, SCAFFOLD, and FedDyn) by leveraging an open-source federated learning framework called Flame. Our comprehensive measurement study reveals that no single algorithm works best across different performance metrics. A few key observations are: (1) While some state-of-the-art algorithms achieve higher accuracy than others, they incur either higher computation overheads (FedDyn) or communication overheads (SCAFFOLD). (2) Recent algorithms present smaller standard deviation in accuracy across clients than FedAvg, indicating that the advanced algorithms' performances are stable. (3) However, algorithms such as FedDyn and SCAFFOLD are more prone to catastrophic failures without the support of additional techniques such as gradient clipping. We hope that our empirical study can help the community to build best practices in evaluating FL algorithms.
title Not All Federated Learning Algorithms Are Created Equal: A Performance Evaluation Study
topic Machine Learning
Distributed, Parallel, and Cluster Computing
url https://arxiv.org/abs/2403.17287