Tagged articles

14 articles

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May 15, 2025 · Industry Insights

Why InfiniBand Still Beats Ethernet: Deep Dive into RDMA, Omni‑Path, and Protocol Layers

This article provides a comprehensive technical analysis of InfiniBand architecture, its protocol stack, comparison with Ethernet‑based RDMA solutions like RoCE and iWARP, and an overview of Omni‑Path, highlighting performance advantages, design trade‑offs, and practical limitations.

High‑performance computingInfiniBandOmni‑Path

0 likes · 19 min read

Why InfiniBand Still Beats Ethernet: Deep Dive into RDMA, Omni‑Path, and Protocol Layers

Architects' Tech Alliance

Aug 18, 2024 · Artificial Intelligence

RDMA, InfiniBand, RoCE, and iWARP: High‑Performance Networking for Large‑Scale Generative AI Model Training

The article explains how RDMA technologies—including InfiniBand, RoCE, and iWARP—provide high‑throughput, low‑latency, CPU‑free data transfer for massive generative AI model training, compares their architectures, and discusses modern network designs and load‑balancing strategies to optimize AI‑focused data‑center networks.

AI trainingHigh‑Performance ComputingInfiniBand

0 likes · 11 min read

RDMA, InfiniBand, RoCE, and iWARP: High‑Performance Networking for Large‑Scale Generative AI Model Training

Linux Code Review Hub

Apr 7, 2024 · Industry Insights

A Decade of RDMA: Lessons Learned from Protocol Evolution

The article reviews ten years of RDMA development, tracing its origins, the rise and pitfalls of RoCEv1/v2, alternative approaches like iWARP and Cisco usNIC, and recent modernizations such as AWS SRD, Google Falcon and UltraEthernet, highlighting why protocol design choices have repeatedly stalled industry progress.

AI AcceleratorsData Center NetworkingRDMA

0 likes · 27 min read

A Decade of RDMA: Lessons Learned from Protocol Evolution

Architects' Tech Alliance

Jun 10, 2023 · Fundamentals

Understanding RDMA: How Direct Memory Access Boosts Data Center Performance

This article explains the principles of DMA and RDMA, compares RDMA protocols such as InfiniBand, RoCE, and iWARP, outlines their performance advantages, and reviews the key standards bodies, open‑source communities, hardware vendors, and real‑world adoption in high‑performance data centers.

DMAData centerHigh‑performance computing

0 likes · 15 min read

Understanding RDMA: How Direct Memory Access Boosts Data Center Performance

Architects' Tech Alliance

Jul 18, 2022 · Industry Insights

Why RDMA Is Essential for Future HPC Data Centers: From TCP Limits to RoCEv2

The article analyzes how the shift of data centers toward compute-centric architectures drives the need for high‑performance networking, explains the shortcomings of TCP/IP, compares InfiniBand, iWarp and RoCE protocols, and shows why loss‑less Ethernet with RDMA is critical for modern HPC workloads.

Data centerHPCInfiniBand

0 likes · 12 min read

Why RDMA Is Essential for Future HPC Data Centers: From TCP Limits to RoCEv2

Architects' Tech Alliance

May 19, 2022 · Fundamentals

An Introduction to RDMA: Concepts, Advantages, Protocols, and Programming Basics

This article explains the fundamentals of Remote Direct Memory Access (RDMA), comparing it with traditional networking, outlining its core advantages, suitable use cases, the three main RDMA protocols (Infiniband, RoCE, iWARP), deployment requirements, communication flow, and essential programming concepts.

High‑Performance NetworkingLow latencyRDMA

0 likes · 9 min read

An Introduction to RDMA: Concepts, Advantages, Protocols, and Programming Basics

Architects' Tech Alliance

Sep 27, 2021 · Fundamentals

High‑Performance Computing (HPC) Network Requirements and RDMA Technologies

The article explains how modern data‑center compute demands drive the need for high‑throughput, low‑latency networking, compares TCP/IP with RDMA‑based solutions such as InfiniBand, iWARP and RoCE, and recommends loss‑less Ethernet for large‑scale HPC deployments.

Data centerHPCInfiniBand

0 likes · 10 min read

High‑Performance Computing (HPC) Network Requirements and RDMA Technologies

Architects' Tech Alliance

Sep 9, 2021 · Fundamentals

Understanding DMA and RDMA: Principles, Advantages, and Protocols

This article explains the concepts of Direct Memory Access (DMA) and Remote Direct Memory Access (RDMA), compares traditional data transfer with DMA-enabled paths, outlines RDMA's advantages such as zero-copy and kernel bypass, and reviews the main RDMA protocols, standards bodies, and hardware ecosystem.

DMAHigh-Performance ComputingKernel Bypass

0 likes · 14 min read

Understanding DMA and RDMA: Principles, Advantages, and Protocols

Architects' Tech Alliance

Mar 7, 2021 · Fundamentals

Understanding RDMA: InfiniBand, iWARP, and RoCE Technologies and Their Differences

This article explains Remote Direct Memory Access (RDMA), its origins in InfiniBand, the Ethernet‑based variants iWARP and RoCE (including RoCEv1 and RoCEv2), compares their architectures, performance characteristics, and deployment requirements for high‑performance computing and data‑center networks.

High‑Performance NetworkingInfiniBandRDMA

0 likes · 11 min read

Understanding RDMA: InfiniBand, iWARP, and RoCE Technologies and Their Differences

Architects' Tech Alliance

Apr 8, 2019 · Fundamentals

Understanding RDMA: Principles, Advantages, and Implementation Details

This article explains how RDMA (Remote Direct Memory Access) technology, originating from InfiniBand and extended to Ethernet (RoCE) and TCP/IP (iWARP), provides ultra‑low latency, high throughput, and minimal CPU usage for high‑performance computing and big‑data applications by bypassing traditional OS and protocol stack processing.

High‑Performance NetworkingLow latencyRDMA

0 likes · 8 min read

Understanding RDMA: Principles, Advantages, and Implementation Details

Architects' Tech Alliance

Jul 24, 2018 · Fundamentals

Remote Direct Memory Access (RDMA): Principles, Comparisons, and Implementation

The article provides a comprehensive overview of Remote Direct Memory Access (RDMA), explaining its underlying principles, performance advantages over traditional TCP/IP, various protocol families such as InfiniBand, RoCE, and iWARP, and practical implementation considerations for high‑performance networking.

High-Performance ComputingRDMARoCE

0 likes · 12 min read

Remote Direct Memory Access (RDMA): Principles, Comparisons, and Implementation

Architects' Tech Alliance

Apr 22, 2018 · Fundamentals

An Overview of Remote Direct Memory Access (RDMA): Principles, Comparisons, and Implementations

This article provides a comprehensive overview of Remote Direct Memory Access (RDMA), detailing its underlying principles, performance advantages over traditional TCP/IP, various protocol families such as InfiniBand, RoCE, and iWARP, and their respective hardware and software requirements.

High‑performance computingInfiniBandLow latency

0 likes · 9 min read

An Overview of Remote Direct Memory Access (RDMA): Principles, Comparisons, and Implementations

Architects' Tech Alliance

Jul 6, 2017 · Fundamentals

Understanding RDMA: Principles, Advantages, and Implementation Details

The article provides a comprehensive overview of RDMA technology, explaining its low‑latency, high‑throughput benefits, origins in InfiniBand, extensions like RoCE and iWARP, the Verbs API, communication models, and why it is poised for broader adoption in modern networking and storage systems.

High ThroughputLow latencyRDMA

0 likes · 9 min read

Architects' Tech Alliance

Jun 20, 2017 · Fundamentals

An Introduction to Remote Direct Memory Access (RDMA) and Its Supporting Protocols

Remote Direct Memory Access (RDMA) is a high‑performance networking technology that moves data directly between the memories of two computers without OS involvement, offering low latency, zero‑copy transfers and reduced CPU load through protocols such as InfiniBand, RoCE and iWARP.

InfiniBandRDMARoCE

0 likes · 9 min read

An Introduction to Remote Direct Memory Access (RDMA) and Its Supporting Protocols