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English(EN) How Much Training-Inference Mismatch Can On-Policy Distillation Tolerate?

On-policy distillation 可容忍显著的训练-推理不匹配

研究人员调查了 on-policy distillation (OPD) 对训练-推理不匹配的容忍度,这是使用量化推理和异步 rollout 以降低成本时常见的问。他们的研究结果表明,OPD 可以在不显著降低训练质量的情况下吸收大量不匹配,尽管在更高水平下性能会下降。研究还发现,对不匹配的敏感度因模型而异,甚至因模型内的特定层而异。为了实际利用这种容忍度,研究人员开发了一种轻量级的准入检查,并证明使用 FP8 KV 缓存和异步 rollout 可以比同步 BF16 训练加速训练。 AI

影响 这项研究可能通过允许更多地使用量化等节省成本的技术,从而更有效地训练大型语言模型。

排序理由 学术论文,详细介绍了一种新方法及其评估。[lever_c_demoted from research: ic=1 ai=1.0]

在 Hugging Face Daily Papers 阅读 →

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On-policy distillation 可容忍显著的训练-推理不匹配

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报道来源 [1]

  1. Hugging Face Daily Papers TIER_1 English(EN) ·

    On-Policy Distillation 的训练-推理不匹配容忍度有多大?

    On-policy distillation tolerates substantial training-inference mismatch from quantized inference and asynchronous rollouts, with model- and layer-specific limits, and a lightweight admission check plus FP8 recipes can exploit this tolerance to improve training efficiency.