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Cover Image for NVIDIA AI Infrastructure and Operations Fundamentals

NVIDIA AI Infrastructure and Operations Fundamentals

Comprehensive guide to NVIDIA AI infrastructure covering GPU architecture, accelerated computing, training vs inference workloads, data center networking, storage design, virtualization, and operational best practices.

Hitesh Sahu
Written by Hitesh Sahu, a passionate developer and blogger.

Fri Feb 27 2026

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Syllabus:

1️⃣ Essential AI Knowledge (38%)

AI vs ML vs DL (AMDA)

AI

Machine simulating human intelligence and decision-making

  • Example: Alexa, Siri, Self-driving car, Chatbot

Machine Learning (ML)

Ability of machine to learn without explicitly being programmed.

  • Example: Spam detection, Fraud detection, Recommendation systems

Deep Learning (DL)

Ability of machines to process data in a way that is inspired by the human brain (by using artificial neural network)

  • Focuses on utilizing multilayered neural networks to perform tasks such as classification, regression, and representation learning.
  • Derives rules from the data itself, rather than relying on explicit programming.
  • Example: Image recognition, Natural language processing, Speech recognition

Generative AI

Subset of DL that focuses on create new data that is similar to the data that was used to train the model.

  • Example: ChatGPT, DALL-E, Stable Diffusion

Generative AI

AgenticAI

Subset of generative AI focused on autonomous decision-making and actions

  • Example: Autonomous robots, AI agents, Self-driving cars

PhysicalAI

AI integrated with physical systems (IoT, robotics)

  • Example: Smart home devices, Industrial automation, Autonomous drones

Relationship:

 AI
    |-- ML (Supervised, Unsupervised, Reinforcement)
         |-- DL (CNNs, RNNs, Transformers)
             |-- [Generative AI](https://developer.nvidia.com/topics/ai/generative-ai?sortBy=developer_learning_library%2Fsort%2Ffeatured_in.generative_ai%3Adesc%2Ctitle%3Aasc) (LLMs, Diffusion Models)
                    |-- Agentic AI (Autonomous systems, Robotics)
                              |-- Physical AI (IoT, Edge devices)
Term Key Idea Exam Trap
AI Machines simulating human intelligence Broad umbrella
ML Learns from data Doesn’t require manual rules
DL Neural networks, many layers Subset of ML
GenAI Generates new data Subset of DL

GPU vs CPU Architecture

CPU GPU
Few powerful cores Thousands of smaller cores
Optimized for sequential tasks Optimized for parallel workloads
Lower throughput Massive parallel throughput
Best for control logic Best for matrix operations

Key Point: GPUs excel at matrix multiplications used in neural networks.


Training vs Inference

AI Workflow:

 Data Preperation 
  |--> Model Training 
     |--> Optimization 
         |--> Inference/Deployment
Training Inference
Model learning Model usage
High compute + memory Lower latency focus
Batch workloads Real-time workloads
Multi-GPU scaling Edge + cloud deployment

Training = compute intensive
Inference = latency optimized


NVIDIA Software Stack (High-Level)

  • CUDA → GPU programming platform
  • cuDNN → Deep learning primitives
  • TensorRT → Inference optimization
  • NCCL → Multi-GPU communication
  • RAPIDS → GPU data science
  • NVIDIA AI Enterprise → Production AI platform

Why AI Adoption Accelerated

  • GPU performance improvements
  • Large datasets
  • Cloud scalability
  • Transformer architectures
  • Pretrained models
  • Open-source frameworks

2️⃣ AI Infrastructure (40%)

Scaling GPU Infrastructure

Scale-Up

  • More GPUs per node
  • NVLink
  • NVSwitch

Scale-Out

  • More nodes
  • InfiniBand
  • Ethernet
  • RDMA

Data Center Requirements

Power

  • High rack density (30–80kW+ per rack)

Cooling

  • Air cooling
  • Liquid cooling
  • Rear door heat exchangers
  • Direct-to-chip cooling

Networking Requirements

Important concepts:

  • RDMA
  • RoCE
  • InfiniBand
  • East-west traffic
  • Spine-leaf architecture

High-speed DC options:

  • 100G / 200G / 400G Ethernet
  • InfiniBand HDR/NDR

DPU (Data Processing Unit)

Purpose:

  • Networking offload
  • Security isolation
  • Storage acceleration
  • Free CPU resources

Architecture roles:

  • CPU → General compute
  • GPU → AI compute
  • DPU → Infrastructure acceleration

On-Prem vs Cloud

On-Prem Cloud
CapEx OpEx
Full control Elastic scaling
Long-term cost efficiency Fast deployment
Hardware management required Managed infrastructure

3️⃣ AI Operations (22%)

Monitoring GPUs

Key Metrics:

  • GPU utilization
  • Memory utilization
  • Temperature
  • Power usage
  • ECC errors
  • SM occupancy

Tools:

  • NVIDIA DCGM
  • Prometheus
  • Grafana
  • nvidia-smi

Cluster Orchestration

  • Kubernetes
  • Slurm
  • Workload scheduling
  • Job prioritization
  • Multi-tenant isolation

Virtualization

  • NVIDIA vGPU
  • MIG (Multi-Instance GPU)
  • GPU partitioning
  • Isolation vs performance trade-offs

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