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AI Cyberspace
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AI Cyberspace

AI, big data, cloud computing, and networking.

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Recent Articles

Latest from AI Cyberspace

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AI Cyberspace
AI Cyberspace
Feb 23, 2025 · Artificial Intelligence

How Helix Empowers Humanoid Robots to See, Hear, Understand, and Act

Helix is a groundbreaking Vision‑Language‑Action model that integrates perception, language understanding, and motor control, enabling humanoid robots to perform full upper‑body continuous movements, collaborate across multiple robots, grasp any household object via natural language, and run on low‑power embedded GPUs for commercial use.

Vision-Language-Actionembodied AIgeneralist control
0 likes · 16 min read
How Helix Empowers Humanoid Robots to See, Hear, Understand, and Act
AI Cyberspace
AI Cyberspace
Feb 22, 2025 · Cloud Computing

Why RoCEv2 Needs a Lossless Network and How to Achieve It

RoCE, originally built for InfiniBand, was adapted to Ethernet as RoCEv2, which uses IP/UDP headers to enable L3 routing but is highly sensitive to packet loss, requiring a lossless network and employing technologies such as PFC, ECN, DCQCN, and multi‑path transmission to maintain high RDMA performance.

Congestion ControlDCQCNECN
0 likes · 17 min read
Why RoCEv2 Needs a Lossless Network and How to Achieve It
AI Cyberspace
AI Cyberspace
Feb 17, 2025 · Fundamentals

Understanding DMA and RDMA: High‑Performance Direct Memory Access Explained

This article explains the principles of Direct Memory Access (DMA) and Remote Direct Memory Access (RDMA), compares them with traditional TCP I/O, outlines RDMA’s features, protocol standards, communication pathways, queue mechanisms, and provides example code for setting up RDMA connections using RoCEv2.

C programmingDMANetwork
0 likes · 21 min read
Understanding DMA and RDMA: High‑Performance Direct Memory Access Explained
AI Cyberspace
AI Cyberspace
Feb 13, 2025 · Fundamentals

Understanding InfiniBand RDMA: Architecture, Advantages, and NVIDIA Quantum-2

InfiniBand RDMA, designed to network server buses, offers high bandwidth and ultra‑low latency through zero‑copy, kernel‑bypass communication, with a layered architecture (L1‑L5) and hardware components like Quantum‑2 Switch, ConnectX‑7 RNIC, and SHARP acceleration, supported by the Verbs API and OFED stack.

InfinibandNetwork ArchitectureQuantum-2
0 likes · 25 min read
Understanding InfiniBand RDMA: Architecture, Advantages, and NVIDIA Quantum-2
AI Cyberspace
AI Cyberspace
Feb 8, 2025 · Artificial Intelligence

Why 8‑GPU Servers Are Essential for LLM Training and Which Interconnect Wins

With modern large‑language‑model workloads demanding massive parallelism, 8‑GPU servers have become the norm; this article explains the roles of CPUs, compares GPU‑to‑GPU interconnect options—including PCIe direct, PCIe Switch, NVLink, and NVSwitch—detailing their architectures, bandwidths, topologies, and trade‑offs for AI training.

8-GPU serverAI trainingGPU interconnect
0 likes · 14 min read
Why 8‑GPU Servers Are Essential for LLM Training and Which Interconnect Wins
AI Cyberspace
AI Cyberspace
Feb 5, 2025 · Fundamentals

From 2D Cards to AI Powerhouses: The Evolution of GPUs

This article traces the GPU's journey from early 2D graphics cards to modern GPGPUs powering AI and HPC, explains core hardware components, compares GPU and CPU architectures, and details the 3D rendering pipeline that underlies graphics and parallel computation.

GPUGraphics Processing UnitParallel Computing
0 likes · 10 min read
From 2D Cards to AI Powerhouses: The Evolution of GPUs
AI Cyberspace
AI Cyberspace
Jan 28, 2025 · Artificial Intelligence

From Biological Neurons to Deep Learning: How MP Models Evolve

This article explains the structure of biological neurons, introduces the McCulloch‑Pitts (MP) mathematical model, shows how manual weight adjustments work, and walks through the development from single‑layer perceptrons to two‑layer networks and modern deep learning techniques, covering activation functions, training algorithms, and practical examples.

BackpropagationGradient DescentMP model
0 likes · 30 min read
From Biological Neurons to Deep Learning: How MP Models Evolve
AI Cyberspace
AI Cyberspace
Dec 17, 2024 · Artificial Intelligence

Why AWS’s Self‑Designed Chips Are Redefining AI Infrastructure

At AWS re:Invent 2024, Amazon unveiled its self‑designed AI hardware trio—Graviton 4 CPU, Nitro 5 DPU, and Trainium 2 accelerator—explaining the innovation, efficiency, and cost advantages driving the strategy, and detailing how these chips power next‑generation cloud services, ultra‑high‑performance servers, and massive AI super‑computing clusters.

AI hardwareAI infrastructureAWS
0 likes · 20 min read
Why AWS’s Self‑Designed Chips Are Redefining AI Infrastructure
AI Cyberspace
AI Cyberspace
Oct 24, 2024 · Fundamentals

What Is a ‘Digital’? Understanding Numbers, Digitization, and Data Elements

The article explains that a ‘digital’ is an information representation, defines digitization as the process of converting physical information into digital form, describes data elements as a new production factor in the digital age, and discusses how digital transformation reshapes enterprise operations, concluding with a brief survey invitation.

Enterprise Strategydata elementsdigital transformation
0 likes · 5 min read
What Is a ‘Digital’? Understanding Numbers, Digitization, and Data Elements
AI Cyberspace
AI Cyberspace
Jun 16, 2024 · Operations

Inside Intel HDSLB: Architecture and Advanced Load‑Balancing Features

This article walks through Intel's high‑density scalable load balancer (HDSLB), detailing its layered software architecture, advanced elephant‑flow handling, fast/slow‑path separation, packet‑forwarding optimizations, and provides a deep code analysis of its configuration, initialization, and data‑plane job execution.

DPDKElephant flowFast Path
0 likes · 25 min read
Inside Intel HDSLB: Architecture and Advanced Load‑Balancing Features