Amazon SageMaker HyperPod now supports EFA-only network interfaces

Published
June 1, 2026
https://aws.amazon.com/about-aws/whats-new/2026/06/amazon-sagemaker-hyperpod-efa-only/

Amazon SageMaker HyperPod EFA-only Network Interfaces

Amazon SageMaker HyperPod now supports EFA-only network interfaces for cluster instance groups, allowing you to configure dedicated Elastic Fabric Adapter (EFA) devices without the traditional Elastic Network Adapter (ENA) for IP networking. This enables scaling AI/ML clusters further without risking IP address exhaustion in your VPC.

When running large-scale distributed training workloads, inter-node communication bandwidth is critical to training performance. With EFA-only, you can maximize the number of EFA interfaces dedicated to low-latency, high-throughput inter-node communication without requiring IP addresses, thus avoiding IP exhaustion.

What to do

  • Specify efa-only in the ClusterNetworkInterface configuration when creating or updating your HyperPod cluster via the CreateCluster/UpdateCluster API.

Source: AWS release notes




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