Add minimal DBuffer implementation - #4835

Merged

wujingyue merged 27 commits into

NVIDIA:mainfrom

wujingyue:dbuffer

Jun 17, 2026

Commits on Jun 16, 2026

Add minimal DBuffer prototype
wujingyue
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135894f
Move DBuffer to experimental package
wujingyue
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dbaa1cb
Add DBuffer output reuse helpers
wujingyue
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dd19997
Clarify DBuffer layout documentation
wujingyue
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0c02dd7
Move DBuffer placements to placement module
wujingyue
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46a47c8
Add DBuffer LCM padding gap coverage
wujingyue
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d91297a
Clarify DBuffer layout packing algorithm
wujingyue
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541d827
Use out variable in DBuffer output paths
wujingyue
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84b75dc
Improve DBuffer out validation errors
wujingyue
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6da17e0
Enforce integer DBuffer mesh axes
wujingyue
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6d61f02
Avoid full input transfers in DBuffer distribution
wujingyue
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5e13f62
Assert scatter shares DBuffer storage
wujingyue
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eecc3df
Rename DBuffer local tensor accessor
wujingyue
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7fb55bd
Rename DBuffer test close helper
wujingyue
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1044be3
Clarify DBuffer allgather placement handling
wujingyue
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101a021
Document DBuffer placement transitions
wujingyue
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7084b25
Require contiguous DBuffer local storage
wujingyue
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c730515
Keep DBuffer tests from resetting process group
wujingyue
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87eb377
Avoid private DeviceMesh test cleanup
wujingyue
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2e76ce8
Use shared distributed fixture in DBuffer tests
wujingyue
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81be44f
Extract DBuffer owned range calculation
wujingyue
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35ca6d7
Clarify DBuffer chunk size layout comments
wujingyue
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7b72b16
Validate DBuffer global layout invariants
wujingyue
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34de45c
Move DBuffer global layout to layout module
wujingyue
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5591a2e
Remove DBuffer 0D rejection test
wujingyue
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76aece4
Document DBuffer tensor range helper
wujingyue
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94aca92
Keep DBuffer placement validation local
wujingyue
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bed9193