NVIDIA-NeMo / NVIDIA-NeMo/RL

Qwen3-30B-A3B: Checkpoint Save Failures on Large-Scale GPU Configurations (H100) and Small-Scale GB200 Systems

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#1,283 7 comments 0 reactions 1 assignee Claimed by @ZhiyuLi-Nvidia View on GitHub
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Description

**Describe the bug**

Currently, the checkpoint fails to save for Qwen3-30B-A3B when using a higher number of GPUs under certain configurations.
For example:

64 nodes (512 GPUs):

TP=4, CP=8, PP=1, ETP=1, EMP=8

TP=4, CP=4, PP=1, ETP=1, EMP=8

32 nodes (256 GPUs):

TP=4, CP=16, PP=1, ETP=1, EMP=4

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