Performance evaluation demonstrates that a RoCE network architecture effectively handles HEPS data generation demands, improving bandwidth and reducing latency.
Among the 15 beamlines in the first phase of the High-Energy Photon Source (HEPS) in China, the maximum peak data generation volume can reach 1 PB per day, with the maximum peak data generation rate reaching 3.2 Tb/s. This poses significant challenges to the underlying network system. This paper designed a high-performance and scalable network architecture based on RoCE (RDMA over Converged Ethernet) to meet the needs of storage, computing, and analysis of HEPS scientific data. Test results show that the RoCE-based HEPS data center network system achieves high bandwidth and low latency characteristics, stably maintains reliable transmission performance during the interaction of scientific data storage, computing, and analysis, while also exhibiting good scalability and being able to adapt to the future expansion needs of HEPS beamlines.
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Zeng et al. (2025) studied this question.
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