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LengthGroupedSampler 根据length排序是必要的吗？ #756

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shockjiang opened this issue Jun 9, 2024 · 1 comment

shockjiang commented Jun 9, 2024

如题在LengthGroupedSampler中，会根据每个样本token length进行排序，这样的必要性是什么呢？

Collaborator

pppppM commented Jun 11, 2024

https://xtuner--664.org.readthedocs.build/zh-cn/664/acceleration/length_grouped_sampler.html

可以先参考下我们正在撰写的文档，会对 gpu 利用率有比较大的影响

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