| 97 | return self.data[idx], self.labels[idx] |
| 98 | |
| 99 | class DataLoaderBuilder: |
| 100 | def __init__(self, config): |
| 101 | self.config = config |
| 102 | |
| 103 | def build_train_loader(self, dataset: Dataset) -> DataLoader: |
| 104 | return DataLoader( |
| 105 | dataset, |
| 106 | batch_size=self.config.batch_size, |
| 107 | shuffle=True, |
| 108 | num_workers=self.config.num_workers, |
| 109 | pin_memory=self.config.pin_memory, |
| 110 | drop_last=True, |
| 111 | persistent_workers=self.config.num_workers > 0 |
| 112 | ) |
| 113 | |
| 114 | def build_val_loader(self, dataset: Dataset) -> DataLoader: |
| 115 | return DataLoader( |
| 116 | dataset, |
| 117 | batch_size=self.config.batch_size, |
| 118 | shuffle=False, |
| 119 | num_workers=self.config.num_workers, |
| 120 | pin_memory=self.config.pin_memory, |
| 121 | drop_last=False, |
| 122 | persistent_workers=self.config.num_workers > 0 |
| 123 | ) |
| 124 | |
| 125 | def build_test_loader(self, dataset: Dataset) -> DataLoader: |
| 126 | return DataLoader( |
| 127 | dataset, |
| 128 | batch_size=self.config.batch_size, |
| 129 | shuffle=False, |
| 130 | num_workers=self.config.num_workers, |
| 131 | pin_memory=self.config.pin_memory, |
| 132 | drop_last=False |
| 133 | ) |
| 134 | |
| 135 | class CachedDataset(Dataset): |
| 136 | def __init__(self, dataset: Dataset, cache_size: int = 1000): |