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Merge pull request #270 from LaihoE/master

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fix np.sum overflows on windows
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Andrej 2023-06-14 15:36:26 -07:00 committed by GitHub
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data/openwebtext/prepare.py
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@ -50,7 +50,7 @@ tokenized = split_dataset.map(
# concatenate all the ids in each dataset into one large file we can use for training
for split, dset in tokenized.items():
arr_len = np.sum(dset['len'])
arr_len = np.sum(dset['len'], dtype=np.uint64)
filename = os.path.join(os.path.dirname(__file__), f'{split}.bin')
dtype = np.uint16 # (can do since enc.max_token_value == 50256 is < 2**16)
arr = np.memmap(filename, dtype=dtype, mode='w+', shape=(arr_len,))