Scaling LLM RL: How Batch Size Affects Training Speed and Efficiency

The article explores how batch size scaling impacts LLM reinforcement learning training efficiency, introducing critical generation and training batch concepts, showing optimal batch size balances sample efficiency and system throughput, with experiments achieving 29% time reduction on fixed hardware.

Batch Size ScalingCritical BatchGRPO

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Scaling LLM RL: How Batch Size Affects Training Speed and Efficiency