Update batch size for mbridge qwen3-32B on MI300X#902
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GeneDer
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limou102 and
wenxie-amd
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July 21, 2026 15:23
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Not going to wait for #897 to be merged into main as we want to release this asap |
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Pull request overview
This PR cherry-picks PR #897 onto the v26.5 release branch to adjust the effective batch sizing for MI300X runs of the Megatron Bridge Qwen3-32B post-training configs, likely to improve memory fit/stability at the current sequence length.
Changes:
- Reduce
micro_batch_sizefrom2to1for Qwen3-32B SFT post-training on MI300X. - Reduce
micro_batch_sizefrom2to1for Qwen3-32B LoRA post-training on MI300X.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| examples/megatron_bridge/configs/MI300X/qwen3_32b_sft_posttrain.yaml | Lowers micro_batch_size to 1 for the SFT post-train MI300X configuration. |
| examples/megatron_bridge/configs/MI300X/qwen3_32b_lora_posttrain.yaml | Lowers micro_batch_size to 1 for the LoRA post-train MI300X configuration. |
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Cherry-pick #897 onto the v26.5 release branch.