modify data split to use HF api #65
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ghstack-source-id: 489d666dd77ddcae80b139147ad82f4b1e6888da Pull Request resolved: #65
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Just found out that HF dataset has its own [API](https://huggingface.co/docs/datasets/v2.17.0/en/package_reference/main_classes#datasets.distributed.split_dataset_by_node) to do data split (across DP ranks). Verified that it has the expected data behavior (same on SP ranks, different on DP ranks). Note: This is still a map-style dataset, that has to be loaded in memory. Setting `streaming=True` for [load_dataset](https://huggingface.co/docs/datasets/v2.17.0/en/package_reference/loading_methods#datasets.load_dataset) returns an IterableDataset whose data doesn't have to fit in memory, but the data loading speed is significantly slower. [ghstack-poisoned]
tianyu-l
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ghstack-source-id: e23d5e0b70abc427a13bc8bf195c876c007f4939 Pull Request resolved: #65
tianyu-l
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Feb 21, 2024
ghstack-source-id: e23d5e0b70abc427a13bc8bf195c876c007f4939 Pull Request resolved: #65
lessw2020
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Apr 18, 2024
ghstack-source-id: e23d5e0b70abc427a13bc8bf195c876c007f4939 Pull Request resolved: #65
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ghstack-source-id: e23d5e0b70abc427a13bc8bf195c876c007f4939 Pull Request resolved: pytorch#65
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Stack from ghstack (oldest at bottom):
Just found out that HF dataset has its own API to do data split (across DP ranks). Verified that it has the expected data behavior (same on SP ranks, different on DP ranks).
Note: This is still a map-style dataset, that has to be loaded in memory. Setting
streaming=Truefor load_dataset returns an IterableDataset whose data doesn't have to fit in memory, but the data loading speed is significantly slower.