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Update loader.py

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Former-commit-id: f9a88b89ca8b8f9a0c5def03b154f9d67f558edf
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hoshi-hiyouga 2024-05-30 00:17:21 +08:00 committed by GitHub
parent c0f11a280e
commit 9fc713da89
1 changed files with 7 additions and 1 deletions
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src/llamafactory/data/loader.py
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@ -108,7 +108,13 @@ def load_single_dataset(
dataset = dataset.to_iterable_dataset() # TODO: add num shards parameter dataset = dataset.to_iterable_dataset() # TODO: add num shards parameter
if dataset_attr.num_samples is not None and not data_args.streaming: if dataset_attr.num_samples is not None and not data_args.streaming:
indexes = np.random.permutation(len(dataset))[: dataset_attr.num_samples] target_num = dataset_attr.num_samples
indexes = np.random.permutation(len(dataset))[:target_num]
target_num -= len(indexes)
if target_num > 0:
expand_indexes = np.random.choice(len(dataset), target_num)
indexes = np.concatenate((indexes, expand_indexes), axis=0)
dataset = dataset.select(indexes) dataset = dataset.select(indexes)
logger.info("Sampled {} examples from dataset {}.".format(dataset_attr.num_samples, dataset_attr)) logger.info("Sampled {} examples from dataset {}.".format(dataset_attr.num_samples, dataset_attr))