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Move to sharded data loading#52

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michaelmckinsey1 merged 5 commits into
LBANN:mainfrom
PatrickRMiles:miles30/sharded_dataloading
Apr 22, 2026
Merged

Move to sharded data loading#52
michaelmckinsey1 merged 5 commits into
LBANN:mainfrom
PatrickRMiles:miles30/sharded_dataloading

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@PatrickRMiles

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This PR makes changes to the data loading so that individual GPUs only load their own shards of data, rather than loading full samples and then sharding. This should help reduce memory requirements at higher problem scales.

@PatrickRMiles PatrickRMiles changed the title Draft: Move to sharded data loading Move to sharded data loading Apr 16, 2026
@PatrickRMiles PatrickRMiles force-pushed the miles30/sharded_dataloading branch from 930deac to 5d0e7dd Compare April 22, 2026 22:47

@michaelmckinsey1 michaelmckinsey1 left a comment

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I don't see any issues. I tested that this enables running at scale 10.

@michaelmckinsey1 michaelmckinsey1 merged commit 220b428 into LBANN:main Apr 22, 2026
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Load samples in sharded manner, rather than loading full samples then sharding

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