feat(runner): align pretrain env bootstrap with legacy behavior and framework-local hooks#598
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Xiaoming-AMD merged 6 commits intomainfrom Apr 7, 2026
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… HipBLASLt tuning Align runner-based pretrain flow with legacy examples by syncing deterministic and HipBLASLt tuning env semantics. Add deterministic env exports in base_env, propagate HipBLASLt stage logic in pretrain hook, support stage-2 tune-only skip in direct launcher, and extend default container env passthrough list for related tuning variables.
… and localize framework dependencies Update pretrain dispatch to support --backend override with conflict checks against config, execute framework-local shell hooks before prepare.py, and localize per-framework dependency bootstrap scripts.
WangLingxun
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Xiaoming-AMD,
limou102 and
wenxie-amd
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WangLingxun
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Mar 26, 2026
- Add Megatron-Bridge pretrain support by implementing MegatronBridgePretrainTrainer and wiring it to the Bridge pretrain entrypoint. - Introduce Megatron-Bridge pretrain module config and example YAMLs (qwen3_32b_pretrain, qwen3_8b_pretrain) with recipe-compatible overrides. - Add framework-local pretrain hooks for Megatron-Bridge (prepare.py, 00_install_requirements.sh, requirements file) to align with runner hook conventions. - Depend on runner pretrain dispatch/hook refactor from PR #598 commit c9dd3c7 (backend override + framework-local hooks execution).
WangLingxun
added a commit
that referenced
this pull request
Mar 26, 2026
- Add Megatron-Bridge pretrain support by implementing MegatronBridgePretrainTrainer and wiring it to the Bridge pretrain entrypoint. - Introduce Megatron-Bridge pretrain module config and example YAMLs (qwen3_32b_pretrain, qwen3_8b_pretrain) with recipe-compatible overrides. - Add framework-local pretrain hooks for Megatron-Bridge (prepare.py, 00_install_requirements.sh, requirements file) to align with runner hook conventions. - Depend on runner pretrain dispatch/hook refactor from PR #598 commit c9dd3c7 (backend override + framework-local hooks execution).
Xiaoming-AMD
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Apr 7, 2026
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Summary
--backendoverride (with conflict validation against config) and run ordered framework-local shell hooks beforeprepare.py.prepare.pyinto hook scripts.