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Merge pull request #301 from okuvshynov/master

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[easy] allow multithreading in load_dataset
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Andrej 2023-06-16 18:30:03 -07:00 committed by GitHub
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data/openwebtext/prepare.py
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@ -11,8 +11,13 @@ from datasets import load_dataset # huggingface datasets
# good number to use is ~order number of cpu cores // 2 # good number to use is ~order number of cpu cores // 2
num_proc = 8 num_proc = 8
# number of workers in load_dataset() call
# best number might be different from num_proc above as it also depends on NW speed.
# it is better than 1 usually though
num_proc_load_dataset = num_proc
# takes 54GB in huggingface .cache dir, about 8M documents (8,013,769) # takes 54GB in huggingface .cache dir, about 8M documents (8,013,769)
dataset = load_dataset("openwebtext") dataset = load_dataset("openwebtext", num_proc=num_proc_load_dataset)
# owt by default only contains the 'train' split, so create a test split # owt by default only contains the 'train' split, so create a test split
split_dataset = dataset["train"].train_test_split(test_size=0.0005, seed=2357, shuffle=True) split_dataset = dataset["train"].train_test_split(test_size=0.0005, seed=2357, shuffle=True)