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arXiv · 2403.00881

FedRDMA: Communication-Efficient Cross-Silo Federated LLM via Chunked RDMA Transmission

Zeling Zhang·Dongqi Cai·Yiran Zhang·Mengwei Xu·Shangguang Wang·Ao Zhou
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Abstract

Communication overhead is a significant bottleneck in federated learning (FL), which has been exaggerated with the increasing size of AI models. In this paper, we propose FedRDMA, a communication-efficient cross-silo FL system that integrates RDMA into the FL communication protocol. To overcome the limitations of RDMA in wide-area networks (WANs), FedRDMA divides the updated model into chunks and designs a series of optimization techniques to improve the efficiency and robustness of RDMA-based communication. We implement FedRDMA atop the industrial federated learning framework and evaluate it on a real-world cross-silo FL scenario. The experimental results show that \sys can achieve up to 3.8$\times$ speedup in communication efficiency compared to traditional TCP/IP-based FL systems.

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Zeling Zhang, Dongqi Cai, Yiran Zhang, Mengwei Xu, Shangguang Wang, Ao Zhou. 2024-03-01. FedRDMA: Communication-Efficient Cross-Silo Federated LLM via Chunked RDMA Transmission. https://arxiv.org/abs/2403.00881

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