The Definitive Guide toAI Data Centers
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GuideGlossaryData parallelism

Data parallelism · DP

Replicating the model across GPUs that each process different data and synchronize gradients via all-reduce.

Current numbers

100–500xless inter-site data exchanged by DiLoCo-class intermittent sync vs full synchronous DP — what makes cross-region training viableas of 2025 · register ↗

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