Building Prometheus: How Backend Aggregation Enables Gigawatt-Scale AI Clusters

📰 Engineering at Meta

Meta's backend aggregation enables seamless connection of thousands of GPUs across multiple data centers for gigawatt-scale AI clusters

advanced Published 9 Feb 2026
Action Steps
  1. Implementing backend aggregation to connect multiple network fabrics
  2. Connecting thousands of GPUs across data centers and regions
  3. Seamlessly integrating Disaggregated Schedule Fabric (DSF) and Non-Scheduled Fabric (NSF)
Who Needs to Know This

DevOps and software engineering teams benefit from understanding backend aggregation for large-scale AI cluster management, as it enables efficient connectivity and scalability

Key Insight

💡 Backend aggregation is crucial for large-scale AI cluster management, enabling efficient connectivity and scalability

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💡 Meta's backend aggregation enables gigawatt-scale AI clusters by connecting thousands of GPUs across multiple data centers
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