Rename Mamba to Hybrid outside megatron/core - #4159

Merged

Phlip79 merged 37 commits into

NVIDIA:mainfrom

Phlip79:philip/rename-non-core

Apr 23, 2026

Commits on Apr 6, 2026

Rename MambaModel/MambaStack/MambaStackSubmodules to Hybrid equivalents

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423c19c
Fix pylint unused-import warnings in backward-compat stubs

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f8aaa60
Add corresponding unit tests for renamed core classes

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19e6688
Rename class-named Mamba references to Hybrid outside megatron/core

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d6a3854
Move non-core test files back out of the core PR

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6f5cf1d
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
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a77b065
Remove unrelated upstream change from core PR

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834c84d
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
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196f8e8
Add missing inference and resharding test updates

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2b82783
Revert "Remove unrelated upstream change from core PR"
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f3533a1
Merge branch 'main' of https://github.com/NVIDIA/Megatron-LM into philip/rename-to-hybrid
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3b09a05
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
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731629b
Move MambaModel subclass from hybrid_model.py to mamba_model.py

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420f5c9
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
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b6aaaa0
Fix imports
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6426646

Commits on Apr 9, 2026

Add CODEOWNERS entry for megatron/core/models/hybrid/

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a1fb376
Merge remote-tracking branch 'upstream/main' into philip/rename-to-hybrid
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050527d

Commits on Apr 13, 2026

Commits on Apr 18, 2026

Merge remote-tracking branch 'upstream/main' into philip/rename-to-hybrid
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a7edd3c
Rename test classes that reference the renamed model classes

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b88d93b
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
Phlip79
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2d619e1
Convert modelopt/mamba/model_specs.py to backward-compat stub

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3375b10
Add mamba_submodules backward-compat alias in MTP

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556eaa5
Fix mamba_stack_spec/MambaStack refs in test_dsa_layer_types

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5202abc
Merge branch 'philip/rename-to-hybrid' into philip/rename-non-core
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5049656

Commits on Apr 19, 2026

Merge remote-tracking branch 'upstream/main' into philip/rename-non-core
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e1396cc
Remove internal references to deprecated Mamba class names

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118c8b5

Commits on Apr 20, 2026

Restore upstream logic accidentally reverted by rename commit

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b415521
Restore two more files accidentally reverted by rename commit

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9828cc5
Merge remote-tracking branch 'upstream/main' into philip/rename-non-core
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e98c50c

Commits on Apr 21, 2026

Remove stray --async-save / --use-persistent-ckpt-worker from hybrid test config

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4e38d27
Remove mamba CLI backward-compat from test_dynamic_engine.py

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30606da

Commits on Apr 23, 2026

Guard pretrain_mamba.py launch with __main__ check

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018fa59