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时序特征平均池化在2.6以及3.1版本上的表现存在差异 #3328

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laserwave opened this issue Feb 28, 2025 · 0 comments

laserwave commented Feb 28, 2025

Describe the bug
What the bug is, and how to reproduce, better with screenshots(描述bug以及复现过程，最好有截图)

基于internvl2/2.5系列的模型，在projector后的时序特征上的时序维度做了平均池化（template类的post encode中）

在2.6版本上无论每卡batchsize设置多少，sft均正常。

3.1版本上sft如果每卡batch size不为1，会报错，为1，可以正常sft；grpo，无论batchsize设置是否为1，都会报错

Your hardware and system info
Write your system info like CUDA version/system/GPU/torch version here(在这里给出硬件信息和系统信息，如CUDA版本，系统，GPU型号和torch版本等)

Additional context
Add any other context about the problem here(在这里补充其他信息)

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