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LoGRA: Scaling LLM Reinforcement Learning with Low-Rank Gradient Sketches

Zhang, Shaokun et al.
arXiv (All) · Papers
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computation-and-language
Reinforcement learning (RL) has greatly advanced the capabilities of large language models (LLMs), but its memory demands remain a barrier to broader adoption. We introduce LoGRA, an approach to RL post-training that reduces memory by retaining useful learning signals in low-rank gradient sketches.
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