IBM Dataloader #19
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IBM Dataloader #19
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Co-authored-by: Linsong Chu <[email protected]>
Re-sync fork to main, and add the latest features from fms-fsdp: - Remove dependence on the separate metadata "count file" in the dataset directory - Support n_workers > 1. This is accomplished by shunting all path/rank-dependent setup out of initialization and into a new setup() method, which runs after init but before any other op - Support HF-style parquet raw text datasets, with tokenization on the fly (for reasonably sized documents/shardfiles) - Support non-flat data directories: all legal files under the specified location will be included, regardless of depth or location. Enables simple weight-free dataset mixing via a single `StreamingDocDataset` on the parent directory - `SamplingDataset` and `ScalableShardDataset`are now implemented as proper `_WrapperDatasets`, reflecting the intended modular usage - Fix Weird_Separated_Camel_Case naming convention in favor of ProperClassNaming - Allow `PreloadBufferDataset` to shrink back down to the desired size after rescaling to a smaller number of workers
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