EFA is exposed by using Libfabric, and can be used by applications using the Messaging Passing Interface (MPI). Official AWS drivers repository for Elastic Network Adapter (ENA) and Elastic Fabric Adapter (EFA) - amzn/amzn-drivers Nov 4, 2022 · The Elastic Fabric Adapter was created so HPC and machine-learning customers could scale their tightly-coupled codes and models to thousands (and thousands) of cores without missing any performance. 4 operating systems. Learn how to launch an EFA and MPI-enabled cluster for HPC workloads on Amazon EC2 In response, in the first half of 2019, AWS introduced the Elastic Fabric Adapter (EFA). 12xlarge with 48 vCPUs and 768 GB memory. An Elastic Fabric Adapter (EFA) is a network device that you can attach to your DLAMI instance to accelerate High Performance Computing (HPC) applications. fabric + Performance, flexibility and agility are paramount to customers choosing fabric – and that’s why fabric is proud to partner with AWS. Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables you to run applications requiring high levels of inter-node communications at scale on Amazon. Jun 11, 2019 · 中文版 – In April, 2019, AWS announced the general availability of Elastic Fabric Adapter (EFA), an EC2 network device that improves throughput and scalability of distributed High Performance Computing (HPC) and Machine Learning (ML) workloads. It builds on top of the Elastic Network Adapter (ENA), which is AWS’s standard high-performance networking. Both new services leverage the AWS global netw Elastic Fabric Adapter (EFA) は、EC2 インスタンスにアタッチしてハイパフォーマンスコンピューティング (HPC) と機械学習アプリケーションを高速化できる、 からの AWS 高性能な高度なネットワーク相互接続です。EFA を使用して AWS PCS クラスターで実行されているアプリケーションを有効にするには Oct 13, 2025 · EFA (Elastic Fabric Adapter) is an evolution of ENA, specifically designed for High Performance Computing (HPC) and Machine Learning (ML) workloads that require low-latency inter-node communication. Learn how to create an Elastic Fabric Adapter and attach it to a stopped Amazon EC2 instance. Elastic Fabric Adapter (EFA) is a network device that you can attach to your Amazon EC2 instances to accelerate Artificial Intelligence (AI), Machine learning (ML), and High Performance Computing (HPC) workloads. Elastic Fabric Adapter is a powerful networking capability that enhances the performance of high-performance computing applications on AWS EC2. As an alternative to RDMA over InfiniBand, in 2018 the largest cloud provider, Amazon Web Services (AWS), introduced instances with Elastic Fabric Adapter (EFA). We'll demonstrate the process of making EFA available for your HPC applications and how to use EFA at scale in HPC clusters with AWS ParallelCluster. 16xlarge with 64 vCPUs and 1024 GB memory. 21). By enabling EFA, optimizing your instances, and adhering to best practices, you can significantly improve your application's performance and efficiency. Today, we’re excited to announce support of EFA through AWS ParallelCluster. 8xlarge with 32 vCPUs and 512 GB memory. "Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run HPC applications requiring high levels of inter-i Elastic Fabric Adapter (EFA) はAI、機械学習 (ML) およびハイパフォーマンスコンピューティング (HPC) のワークロードを高速化するために Amazon EC2 インスタンスにアタッチできるネットワークデバイスです。 Mar 28, 2019 · Amazon EC2's newest networking capability, Elastic Fabric Adapter (EFA), provides low latency connectivity for highly parallel, tightly-coupled applications to achieve not just great performance, but also extremely quick turnaround thanks to the agility and extreme scalability of AWS. May 13, 2021 · It’s more like a city where we have to build on what’s there already, renovate occasionally, and push for bigger and better and faster whilst keeping the lights on at all times. Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables you to run applications requiring high levels of inter-node communications at scale on AWS. Elastic Fabric Adapter（EFA）是一种网络设备，可以将其附加到 Amazon EC2 实例以加速人工智能（AI）、机器学习（ML）和高性能计算（HPC）应用程序。 EFA 使您能够利用 AWS 云提供的可伸缩性、灵活性和弹性，实现本地 AI/ML 或 HPC 集群的应用程序性能。 For more information on how to configure placement groups with Amazon ParallelCluster, see SlurmQueues / Networking / PlacementGroup. An Elastic Fabric Adapter (EFA) is a network device to accelerate High Performance Computing (HPC) applications. We don’t start with a blank page every few years and design the next big system. This topic describes how to integrate Elastic Fabric Adapter (EFA) with Pods deployed in your Amazon EKS cluster. X8i instances are SAP-certified and deliver the highest performance and fastest memory bandwidth among comparable Intel processors in the cloud. Enabling your applications running on an AWS PCS cluster with EFA involves configuring the AWS PCS compute node group instances to use EFA as follows. The service manages all the file storage infrastructure. Jan 9, 2026 · Network: AWS offers high speed interconnects between nodes with Elastic Fabric Adapter (EFA). Oct 31, 2023 · 为了解决这个难题，在亚马逊云科技平台上可以使用面向大规模机器学习（以及高性能计算 HPC）场景下的 Elastic Fabric Adapter（下文称 EFA），它是一种 Amazon EC2 实例上创新的网络接口，可以显著提高机器学习和高性能计算应用程序的网络性能。 Nov 26, 2018 · Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run HPC applications requiring high levels of inter-instance communications, like computational fluid dynamics, weather modeling, and reservoir simulation, at scale on AWS. We’ll talk about how they started Elastic Fabric Adapter (EFA) is a high performance advanced networking interconnect from AWS that you can attach to your EC2 instance to accelerate High Performance Computing (HPC) and machine learning applications. Dec 16, 2024 · Today, AWS announces the introduction of Elastic Fabric Adapter (EFA) support for Bottlerocket, the Linux-based operating system purpose-built for hosting containers, with a focus on security, minimal footprint, and safe updates. We describe EFA and its three pillars and corresponding benefits: implementing Operating System (OS) bypass to reduce overhead; continuing ENA improvements for enhanced bandwidth; and innovating in network transport -- the cloud-centric Scalable Reliable Oct 22, 2019 · Leveraging Elastic Fabric Adapter to run HPC and ML Workloads on AWS Batch This post is contributed by Sean Smith, Software Development Engineer II, AWS ParallelCluster & Arya Hezarkhani, Software Development Engineer II, AWS Batch and HPC On August 2, 2019, AWS Batch announced support for Elastic Fabric Adapter (EFA). Example of Managing Multiple IPs on a Network Interface By default, private IPs are managed through the private_ips and private_ips_count arguments which manage IPs as a set of IPs that are configured without regard to order. We describe EFA and its three pillars and corresponding benefits: implementing Operating System (OS) bypass to reduce overhead; continuing ENA improvements for enhanced bandwidth; and innovating in network transport -- the cloud-centric Scalable Reliable Jan 5, 2023 · AWS released a newer version of Elastic Fabric Adapter (EFA) Installer (v1. The performance benefit is studied compared to the standard Elastic Network Adapter (ENA) interfaces when using multiple nodes. Even though these deliver peak 400Gbps throughput on the collectives typically used in training workloads, they fall slightly short of ConnectX-7 on the message sizes exchanged during MoE dispatch and combine. Elastic Fabric Adapter (EFA)는 Amazon EC2 인스턴스에 연결하여 인공 지능 (AI), 기계 학습 (ML), 고성능 컴퓨팅 (HPC) 워크로드를 가속화할 수 있는 네트워크 디바이스입니다. 您可以创建 EFA 并将其附加到 Amazon EC2 实例，就像 Amazon EC2 中的任何其他弹性网络接口一样。 不过，与弹性网络接口不同，无法将 EFA 附加到处于 running 状态的实例，也无法将其从处于该状态的实例中分离。 Aug 8, 2019 · In April, 2019, AWS announced the general availability of Elastic Fabric Adapter (EFA), an Amazon EC2 network device that improves throughput and scalability of distributed High Performance Computing (HPC) and Machine Learning (ML) workloads. Available in 4 Amazon Web Services (AWS) locations. Amazon EC2 の他の Elastic Network Interface と同様に、EFA を作成して Amazon EC2 インスタンスにアタッチすることができます。 ただし、Elastic Network Interface とは異なり、 running 状態のインスタンスに対して EFA をアタッチまたはデタッチすることはできません。 What is the Elastic Fabric Adapter from AWS? HPC Tech Shorts • 2K views • 2 years ago Elastic Fabric Adapter (EFA) es un dispositivo de red que puede adjuntar a sus instancias de Amazon EC2 para acelerar las cargas de trabajo de inteligencia artificial (IA), machine learning (ML) y computación de alto rendimiento (HPC). During the preview, AWS customers put EFA through its paces on a variety of tightly-coupled HPC workloads, providing us with valuable feedback and helping us to fine-tune the final product. Create an empty EKS Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-instance communications, like machine learning, computational fluid dynamics, weather modeling, and reservoir simulation, at scale on AWS. In this blog, I discuss a new AWS service: the Elastic Fabric Adapter (EFA). EFA is a network interface for Amazon EC2 instances that is specifically designed to achieve low latencies in the cloud. "Elastic Fabric Adapter (EFA) is the recently announced HPC networking offering from Amazon for EC2 instances. 2xlarge with 8 vCPUs and 128 GB memory. Mar 30, 2019 · Raghu Raja from Amazon gave this talk at the OpenFabrics Workshop in Austin. Now Available Today I am happy […] This topic describes how to integrate Elastic Fabric Adapter (EFA) with Pods deployed in your Amazon EKS cluster. xlarge with 4 vCPUs and 64 GB memory. Elastic Fabric Adapter (EFA) est un périphérique réseau que vous pouvez connecter à vos EC2 instances Amazon pour accélérer le calcul haute performance (HPC) et les applications d'apprentissage automatique. Feb 2, 2024 · Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables high-performance communication between instances in a cluster. Nov 26, 2025 · Proteros is a leader in structure-based drug discovery solutions, and supports pharmaceutical, biotechnological, and academic clients with advanced technologies like Cryogenic Electron Microscopy (Cryo-EM) and Protein Crystallography (PX). Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies—are using AWS to lower costs, become more agile, and innovate faster. It’s a little more like a city where we build on what’s there already, renovate occasionally, and make things bigger and better and faster, all while keeping the lights Sep 29, 2023 · What is AWS Elastic Fabric Adapter (EFA)? Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enhances the network capabilities of HPC and machine learning This successful collaboration with AWS shows the extreme scale, power and agility of cloud-based HPC to help us run complex simulations for future storage architecture analysis and materials science explorations. An EFA is a network device that you can attach to your Amazon EC2 instance to accelerate Artificial Intelligence (AI), Machine Learning (ML), and High Performance Learn how to monitor the performance of your Elastic Fabric Adapters. Explore the two facets of AWS AppFabric: AppFabric for security, designed for streamlined management and security, and AppFabric for productivity (preview), enhanced with generative AI capabilities. Elastic Fabric Adapter (EFA) is a network device that has OS-bypass capabilities for low-latency network communications with other instances on the same subnet. The Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables you to run applications that require high levels of inter-node communication at scale on AWS. AWS Batch supports applications that use EFA if the following conditions are met. It allows applications such as MPI to communicate using the Scalable Reliable Datagram (SRD) protocol that provides connectionless and unordered messaging services directly in userspace, bypassing both the Apr 29, 2019 · We announced Elastic Fabric Adapter (EFA) at re:Invent 2018 and made it available in preview form at the time. Debuting after a preview at the 2025 re:Invent event, the X8i fleet runs on custom Intel Xeon 6 processors and offers a sustained all-core Amazon EC2 instance type x8i. An Elastic Fabric Adapter (EFA) is a network device that you can attach to your Amazon EC2 instance to accelerate Artificial Intelligence (AI), Machine Learning (ML), and High Performance Computing (HPC) applications. For a new network interface, the same primary IP address is consistently selected from a given set of addresses 4 days ago · AWS is announcing the general availability of Amazon EC2 X8i instances, next-generation memory optimized instances powered by custom Intel Xeon 6 processors available only on AWS. The presentation covered an overview of high performance computing on AWS, a deep dive on what EFA is and how it works, and the road ahead for further developing EFA. AWS Elastic Fabric Adapter (EFA) is a specialized network interface for Amazon EC2 instances that allows customers to run high levels of inter-instance communication, such as HPC applications on AWS at scale on. We will contact you with instructions when you are accepted into the preview. Please submit the information below to request an invitation for program participation. Jun 7, 2025 · AWS EFA（Elastic Fabric Adapter）は、高性能コンピューティング（HPC）や機械学習などの低レイテンシ・高スループット通信を必要とするワークロード向けのネットワークインターフェースです。 🧠 ざっくり一言でいうと？ **「EC2インスタンス間 May 23, 2024 · 고성능 컴퓨팅(HPC)에 관심 있는 고객분들을 위해 AWS 클라우드 환경에서 엔지니어링 시뮬레이션이나 분산 트레이닝을 수행할 때 거의 필수적으로 사용되는 고성능 컴퓨팅 네트워크 기술에 대해 알기쉽게 설명드리고자 합니다. 1 day ago · In a move aimed at accelerating memory-heavy workloads, Amazon Web Services has announced general availability for its new memory-optimized EC2 X8i instances. 24xlarge backed nodegroup with EFA, to run an example NCCL-Test for Multi-node NCCL Performance via EFA. You will need an AWS Account ID in order to apply. Learn how to launch an EFA and NCCL-enabled cluster for machine learning workloads on Amazon EC2 Oct 24, 2024 · AWS announces the launch of a new interface type that decouples the Elastic Fabric Adapter (EFA) from the Elastic Network Adapter (ENA). In this blog post, we’ll explore how Proteros implemented an HPC solution that scales with their scientific ambitions. Nov 11, 2021 · We have recently launched three new Amazon EC2 instances types enabled with Elastic Fabric Adapter (EFA), our network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS. EFA provides high-speed networking for HPC workloads running on EC2 instances by exposing a reliable datagram interface. To use EFA with AWS ParallelCluster and a Slurm scheduler, set SlurmQueues / ComputeResources / Efa / Enabled to true. Nov 27, 2024 · Amazon FSx for Lustre, a service that provides high-performance, cost-effective, and scalable file storage for compute workloads, now supports Elastic Fabric Adapter (EFA) and NVIDIA GPUDirect Storage (GDS). Oct 19, 2020 · Fire Dynamics Simulation CFD workflow using AWS ParallelCluster, Elastic Fabric Adapter, Amazon FSx for Lustre and NICE DCV by Emma White on 19 OCT 2020 in Compute, High Performance Computing, Technical How-to Permalink Share Nov 5, 2025 · AI search provider Perplexity's research wing has developed a new set of software optimizations that allows for trillion parameter or large models to run efficiently across older, cheaper hardware using a variety of existing network technologies, including Amazon's proprietary Elastic Fabric Adapter O Elastic Fabric Adapter (EFA) é um dispositivo de rede que pode ser conectado às suas instâncias do Amazon EC2 para acelerar as workloads de inteligência artificial (IA), machine learning (ML) e computação de alta performance (HPC). 64xlarge with 256 vCPUs and 4096 GB memory. Amazon EC2 compute infrastructure is very much notlike a ‘normal’ supercomputer (whatever that is). EFA is a network device that you can attach to Source: examples/aws_efa Using Elastic Fabric Adapter (EFA) on AWS with SkyPilot # Elastic Fabric Adapter (EFA) is an AWS alternative to Nvidia infiniband that enables high levels of inter-node communications. That leads to a bunch of design decisions that drive our engineers in a very different direction and our Elastic Fabric Adapter is an example of just that. For more information, see Elastic Fabric Adapter in the Amazon EC2 User Guide and Scale HPC workloads with elastic fabric adapter and Amazon ParallelCluster in the Amazon Open Source Blog. The new interface, "EFA-only", allows you to create a standalone EFA device on secondary interfaces. Amazon EC2 instance type x8i. The Elastic Fabric Adapter was created so HPC and machine-learning customers could scale their tightly-coupled codes and models to thousands (and thousands) of cores without missing any performance. This document will introduce the user to create an EKS cluster with P3dn. EFA provides high-bandwidth, low-latency networking crucial for scaling AI/ML workloads. Elastic Fabric Adapter (EFA) は、同じサブネット上の低レイテンシーのネットワーク通信のための OS バイパス機能を備えたネットワークデバイスです。 May 1, 2019 · 지난 re:Invent 2018에서 Elastic Fabric Adapter(EFA)라는 신규 네트워크 어댑터를 미리보기 형식으로 발표했습니다. May 5, 2019 · 在 re:Invent 2018 上，我们发布了 Elastic Fabric Adapter (EFA) 并在当时以预览版形式推出。预览期间，AWS 客户在各种紧密耦合的 HPC 工作负载上对 EFA 进行了测试，为我们提供了有价值的反馈并帮助我们对最终产品进行了优化。 Elastic Fabric Adapter (EFA) 是可連接到 Amazon EC2 執行個體的網路裝置，用以加速人工智慧 (AI)、機器學習 (ML) 和高效能運算 (HPC) 應用程式。 EFA 可讓您實現內部部署的 AI/ML 或 HPC 叢集的應用程式效能，並具有 AWS 雲端提供的可擴展性、靈活性和彈性。 Amazon Elastic File System (Amazon EFS) provides serverless, fully elastic file storage so that you can share file data. 이 기간 동안 많은 AWS 고객은 다양한 고성능 컴퓨팅(HPC) 워크로드에 대해 EFA의 성능과 기능을 시험하면서 저희에게 중요한 피드백을 제공하고, 최종 제품을 세부적으로 개선하는 데 큰 도움을 AWS’s low latency network EFA. 0 and OpenSUSE Leap 15. This workflow will also provide a template for distributed deep learning training on EKS using EFA. This enhancement makes it possible to communicate with EC2 instances across subnets while benefiting from the low latency and high throughput provided by EFA. In response, in the first half of 2019, AWS introduced the Elastic Fabric Adapter (EFA). Elastic Fabric Adapter is now available in limited preview. Jul 2, 2024 · We are excited to announce that AWS now supports cross-subnet communication between Elastic Fabric Adapter (EFA) interfaces for Amazon EC2 instances within the same Availability Zone (AZ). EFA enables you to achieve the application performance of an on-premises HPC cluster, with the scalability, flexibility, and elasticity provided by the AWS Cloud. For a list of instance types that support EFAs, see Supported instance types in the Amazon EC2 User Guide. We describe EFA and its three pillars and corresponding benefits: implementing Operating System (OS) bypass to reduce overhead; continuing ENA improvements for enhanced bandwidth; and innovating in network transport -- the cloud-centric Scalable Reliable Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS. Dec 17, 2019 · The first post demonstrated how to launch ANSYS Fluent on AWS using AWS ParallelCluster. The Elastic Fabric Adapter (EFA) is a network interface for Amazon Elastic Compute Cloud (EC2) instances that allows you to run HPC applications with improved levels of communication between several different nodes. Recently, we added a feature to support EFA configuration using AWS ParallelCluster. The Amazon EC2 Elastic Fabric Adapter (EFA) is an Elastic Network Adapter with additional capabilities to bypass the OS network layer, so that it provides a low-latency, reliable transport functionality between nodes in the cloud. Sep 21, 2025 · Elastic Fabric Adapter (EFA) An EFA is a special type of network interface (kind of like a network card) for Amazon EC2 instances. 4xlarge with 16 vCPUs and 256 GB memory. 2 days ago · 【AWS ParallelCluster】 HPC クラスタを自動構築・管理するためのオープンソースツール 🎯 できること ・計算ノードを自動でスケール（増減） ・Slurm などのスケジューラを自動セットアップ ・EFA や FSx for Lustre など HPC 向 Jan 7, 2026 · Provides an Elastic network interface (ENI) resource. 오늘은 첫 번째로 고속 네트워크 인터페이스인 Elastic Fabric Adapter에 대해 Apr 29, 2019 · Elastic Fabric Adapter (EFA) 是适用于 Amazon EC2 实例的低延迟网络适配器，现已全面推出，可供生产使用。 EFA 在 2018 年 11 月首次作为预览版推出。 May 16, 2025 · The following table describes the version history and changelog for the Elastic Fabric Adapter software. Running HPC Applications on AWS Using Elastic Fabric Adapter (EFA) Open MPI and EFA Deep Dive Linda Hedges, Principle HPC Solutions Architect Oct 19, 2020 · The first post demonstrated how to launch ANSYS Fluent on AWS using AWS ParallelCluster. On AWS clusters, the situation is different due to the use of their custom Elastic Fabric Adapters (EFA). Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS. It uses a new protocol In response, in the first half of 2019, AWS introduced the Elastic Fabric Adapter (EFA). Find out more about how Elastic Fabric Adapter (EFA) can help your HPC workloads Sep 9, 2025 · Comparison of AWS Elastic Fabric Adapter (EFA) with InfiniBand and RoCEv2 in the context of AI training and inference workloads, highlighting differences in bandwidth and latency requirements. What is EFA? Elastic Fabric Adapter (EFA) is an OS-bypass, RDMA-enabled network adapter for high-performance inter-node communication. Nov 30, 2018 · Introducing the AWS Global Accelerator and the Elastic Fabric Adapter, which were announced at re:Invent 2018. Deploy a hello world Mule app to an Amazon Elastic Kubernetes Service (EKS) cluster using Runtime Fabric This document summarizes a presentation about Amazon's Elastic Fabric Adapter (EFA). This version introduces support for the Rocky Linux v9. It is specifically useful for distributed AI training and inference, which requires high network bandwidth across nodes. To Deep-Dive Into 100G networking & Elastic Fabric Adapter on Amazon EC2 Brendan Bouffler Principal Product Manager, HPC & Batch Amazon Web Services Jun 22, 2021 · AWS worked backwards from an essential problem in HPC networking (MPI ranks need to exchange lots of data quickly) and found a different solution for our unique circumstances, without trading off the things customers love the most about cloud: that you can run virtually any application, at scale, and right away. In this video, speakers from AWS explain the value and capabilities if Elastic Fabric Adapter (EFA) enabling users to run highly performant, distributed high Oct 23, 2025 · AWS RTB Fabric is a fully managed service designed for real-time bidding advertising workloads that enables AdTech companies to connect with their supply and demand partners through a dedicated, high-performance network environment, delivering single-digit millisecond performance and up to 80% lower networking costs compared to standard cloud connections while eliminating the need for . In this tech talk, learn how tightly coupled applications can take advantage of Elastic Fabric Adapter (EFA) for boosting application performance.

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