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💸The GPU Scheduling Nightmare: Kubernetes GPU Scheduling for AI and Enterprise Utilization
Season 30 Episode 22
Welcome to AI Unraveled: Your daily strategic briefing on the business impact of AI.
Today's Highlights: We are switching to "Special Episode" status for a critical infrastructure deep dive. We tackle the GPU Scheduling Nightmare—why your expensive H100s are sitting idle, why default Kubernetes fails at AI orchestration, and the new playbook enterprises are using to reclaim millions in wasted compute.
Strategic Pillars & Topics
📉 The Core Problem: The "Idle Iron" Crisis
- The 15% Reality: Why most enterprises only utilize 15-30% of their GPU capacity despite massive investments.
- The Kubernetes Gap: Why standard K8s schedulers (FIFO) choke on AI workloads and create "resource fragmentation."
- The "Pending" Purgatory: How large training jobs get stuck in queues indefinitely while small jobs hog resources.
🛠 The Solutions: Advanced Orchestration
- Gang Scheduling: The "All-or-Nothing" approach to ensure distributed training jobs only start when allresources are ready.
- Bin Packing vs. Spreading: Optimizing for density to free up large blocks of compute for massive models.
- Preemption & Checkpointing: The art of pausing low-priority research jobs to let high-priority production inference run instantly.
- Fractional GPUs (MIG): Slicing a single A100/H100 into 7 distinct instances to serve multiple lightweight models simultaneously.
🛡 Security & Multi-Tenancy
- The "Noisy Neighbor" Risk: preventing memory leaks and performance degradation between teams sharing the same cluster.
- Quota Management: Implementing "fair share" policies so one team doesn't drain the entire budget.
Host Connection & Engagement
- Newsletter: Sign up for FREE daily briefings at https://enoumen.substack.com
- LinkedIn: Connect with Etienne: https://www.linkedin.com/in/enoumen/
- Email: info@djamgatech.com
- Website: https://djamgatech.com/ai-unraveled
- Source: https://www.linkedin.com/pulse/gpu-scheduling-nightmare-kubernetes-ai-enterprise-utilization-tfsgc
Timestamps
00:00 Welcome & The "Idle Iron" Crisis 🎙️
01:50 The Default Kubernetes Failure Mode (FIFO & fragmentation)
03:20 Why AI Workloads are Different (Training vs. Inference)
05:50 Strategy 1: Gang Scheduling Explained
07:40 Strategy 2: Bin Packing for Density
08:30 Strategy 3: Preemption & The "Resume" Problem
09:50 Strategy 4: Multi-Instance GPUs (MIG) & Slicing
11:20 Governance: Quotas & Fair Share Scheduling
12:50 Security: Multi-tenancy & Isolation
14:10 Tooling Landscape: Volcano, YuniKorn, & Run:AI 🧰
15:45 Final Thesis: Utilization = Revenue 💰
🚀 STOP MARKETING TO THE MASSES. START BRIEFING THE C-SUITE.
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Keywords: Kubernetes AI, GPU Scheduling, Nvidia H100, Gang Scheduling, Bin Packing, Multi-Instance GPU, MIG, AI Infrastructure, MLOps, Run:AI, Volcano Scheduler, YuniKorn, Etienne Noumen.
#AI #AIUnraveled
Published on 2 days, 20 hours ago