Ultra Ethernet for next-generation AI and HPC workloads

  • Torsten Hoefler, ETH Zürich; Abdul Kabbani; Sujata Banerjee, Microsoft

The Ultra Ethernet Consortium set out to redefine Ethernet-based interconnects for AI and high-performance computing (HPC), culminating in the recent release of its first specification (version 1.0). This talk will highlight key innovations that distinguish Ultra Ethernet from existing solutions, ranging from lossy operation—both with and without trimming—to fully hardware-offloaded rendezvous protocols. We will explore the architectural advancements and technical highlights that enhance efficiency, scalability, and performance, positioning Ultra Ethernet as a transformative force in next-generation computing.