Ultra Ethernet's Design Principles and Architectural Innovations
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arXiv
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| Format: | Preprint |
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2025
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| author | Hoefler, Torsten Schramm, Karen Spada, Eric Underwood, Keith Alexander, Cedell Alverson, Bob Bottorff, Paul Caulfield, Adrian Handley, Mark Huang, Cathy Raiciu, Costin Kabbani, Abdul Opsasnick, Eugene Pan, Rong Ran, Adee Sohan, Rip |
| author_facet | Hoefler, Torsten Schramm, Karen Spada, Eric Underwood, Keith Alexander, Cedell Alverson, Bob Bottorff, Paul Caulfield, Adrian Handley, Mark Huang, Cathy Raiciu, Costin Kabbani, Abdul Opsasnick, Eugene Pan, Rong Ran, Adee Sohan, Rip |
| contents | The recently released Ultra Ethernet (UE) 1.0 specification defines a transformative High-Performance Ethernet standard for future Artificial Intelligence (AI) and High-Performance Computing (HPC) systems. This paper, written by the specification's authors, provides a high-level overview of UE's design, offering crucial motivations and scientific context to understand its innovations. While UE introduces advancements across the entire Ethernet stack, its standout contribution is the novel Ultra Ethernet Transport (UET), a potentially fully hardware-accelerated protocol engineered for reliable, fast, and efficient communication in extreme-scale systems. Unlike InfiniBand, the last major standardization effort in high-performance networking over two decades ago, UE leverages the expansive Ethernet ecosystem and the 1,000x gains in computational efficiency per moved bit to deliver a new era of high-performance networking. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_08906 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ultra Ethernet's Design Principles and Architectural Innovations Hoefler, Torsten Schramm, Karen Spada, Eric Underwood, Keith Alexander, Cedell Alverson, Bob Bottorff, Paul Caulfield, Adrian Handley, Mark Huang, Cathy Raiciu, Costin Kabbani, Abdul Opsasnick, Eugene Pan, Rong Ran, Adee Sohan, Rip Networking and Internet Architecture Hardware Architecture Distributed, Parallel, and Cluster Computing Operating Systems Performance The recently released Ultra Ethernet (UE) 1.0 specification defines a transformative High-Performance Ethernet standard for future Artificial Intelligence (AI) and High-Performance Computing (HPC) systems. This paper, written by the specification's authors, provides a high-level overview of UE's design, offering crucial motivations and scientific context to understand its innovations. While UE introduces advancements across the entire Ethernet stack, its standout contribution is the novel Ultra Ethernet Transport (UET), a potentially fully hardware-accelerated protocol engineered for reliable, fast, and efficient communication in extreme-scale systems. Unlike InfiniBand, the last major standardization effort in high-performance networking over two decades ago, UE leverages the expansive Ethernet ecosystem and the 1,000x gains in computational efficiency per moved bit to deliver a new era of high-performance networking. |
| title | Ultra Ethernet's Design Principles and Architectural Innovations |
| topic | Networking and Internet Architecture Hardware Architecture Distributed, Parallel, and Cluster Computing Operating Systems Performance |
| url | https://arxiv.org/abs/2508.08906 |