|
| 1 | +from pathlib import Path |
| 2 | + |
| 3 | +import torch |
| 4 | +from the_well.data.datamodule import WellDataModule |
| 5 | +from the_well.data.normalization import ZScoreNormalization |
| 6 | +from torch.utils.data import DataLoader |
| 7 | + |
| 8 | +from auto_cast.data.dataset import SpatioTemporalDataset |
| 9 | +from auto_cast.types import collate_batches |
| 10 | + |
| 11 | + |
| 12 | +class SpatioTemporalDataModule(WellDataModule): |
| 13 | + """A class for spatio-temporal data modules.""" |
| 14 | + |
| 15 | + def __init__( |
| 16 | + self, |
| 17 | + data_path: str | None, |
| 18 | + data: dict[str, dict] | None = None, |
| 19 | + dataset_cls: type[SpatioTemporalDataset] = SpatioTemporalDataset, |
| 20 | + n_steps_input: int = 1, |
| 21 | + n_steps_output: int = 1, |
| 22 | + stride: int = 1, |
| 23 | + # TODO: support for passing data from dict |
| 24 | + input_channel_idxs: tuple[int, ...] | None = None, |
| 25 | + output_channel_idxs: tuple[int, ...] | None = None, |
| 26 | + batch_size: int = 4, |
| 27 | + dtype: torch.dtype = torch.float32, |
| 28 | + ftype: str = "torch", |
| 29 | + verbose: bool = False, |
| 30 | + use_normalization: bool = False, |
| 31 | + ): |
| 32 | + self.verbose = verbose |
| 33 | + self.use_normalization = use_normalization |
| 34 | + |
| 35 | + base_path = Path(data_path) if data_path is not None else None |
| 36 | + suffix = ".pt" if ftype == "torch" else ".h5" |
| 37 | + fname = f"data{suffix}" |
| 38 | + train_path = base_path / "train" / fname if base_path is not None else None |
| 39 | + valid_path = base_path / "valid" / fname if base_path is not None else None |
| 40 | + test_path = base_path / "test" / fname if base_path is not None else None |
| 41 | + |
| 42 | + # Create training dataset first (without normalization) |
| 43 | + self.train_dataset = dataset_cls( |
| 44 | + data_path=str(train_path) if train_path is not None else None, |
| 45 | + data=data["train"] if data is not None else None, |
| 46 | + n_steps_input=n_steps_input, |
| 47 | + n_steps_output=n_steps_output, |
| 48 | + stride=stride, |
| 49 | + input_channel_idxs=input_channel_idxs, |
| 50 | + output_channel_idxs=output_channel_idxs, |
| 51 | + dtype=dtype, |
| 52 | + verbose=self.verbose, |
| 53 | + use_normalization=False, # Temporarily disable to compute stats |
| 54 | + norm=None, |
| 55 | + ) |
| 56 | + |
| 57 | + # Compute normalization from training data if requested |
| 58 | + norm = None |
| 59 | + if self.use_normalization: |
| 60 | + if self.verbose: |
| 61 | + print("Computing normalization statistics from training data...") |
| 62 | + norm = ZScoreNormalization |
| 63 | + # if self.verbose: |
| 64 | + # print(f" Mean (per channel): {norm.mean}") |
| 65 | + # print(f" Std (per channel): {norm.std}") |
| 66 | + |
| 67 | + # Now enable normalization for training dataset |
| 68 | + self.train_dataset.use_normalization = True |
| 69 | + self.train_dataset.norm = norm |
| 70 | + |
| 71 | + self.val_dataset = dataset_cls( |
| 72 | + data_path=str(valid_path) if valid_path is not None else None, |
| 73 | + data=data["valid"] if data is not None else None, |
| 74 | + n_steps_input=n_steps_input, |
| 75 | + n_steps_output=n_steps_output, |
| 76 | + stride=stride, |
| 77 | + input_channel_idxs=input_channel_idxs, |
| 78 | + output_channel_idxs=output_channel_idxs, |
| 79 | + dtype=dtype, |
| 80 | + verbose=self.verbose, |
| 81 | + use_normalization=self.use_normalization, |
| 82 | + norm=norm, |
| 83 | + ) |
| 84 | + self.test_dataset = dataset_cls( |
| 85 | + data_path=str(test_path) if test_path is not None else None, |
| 86 | + data=data["test"] if data is not None else None, |
| 87 | + n_steps_input=n_steps_input, |
| 88 | + n_steps_output=n_steps_output, |
| 89 | + stride=stride, |
| 90 | + input_channel_idxs=input_channel_idxs, |
| 91 | + output_channel_idxs=output_channel_idxs, |
| 92 | + dtype=dtype, |
| 93 | + verbose=self.verbose, |
| 94 | + use_normalization=self.use_normalization, |
| 95 | + norm=norm, |
| 96 | + ) |
| 97 | + self.rollout_val_dataset = dataset_cls( |
| 98 | + data_path=str(train_path) if train_path is not None else None, |
| 99 | + data=data["train"] if data is not None else None, |
| 100 | + n_steps_input=n_steps_input, |
| 101 | + n_steps_output=n_steps_output, |
| 102 | + stride=stride, |
| 103 | + input_channel_idxs=input_channel_idxs, |
| 104 | + output_channel_idxs=output_channel_idxs, |
| 105 | + full_trajectory_mode=True, |
| 106 | + dtype=dtype, |
| 107 | + verbose=self.verbose, |
| 108 | + use_normalization=self.use_normalization, |
| 109 | + norm=norm, |
| 110 | + ) |
| 111 | + self.rollout_test_dataset = dataset_cls( |
| 112 | + data_path=str(test_path) if test_path is not None else None, |
| 113 | + data=data["test"] if data is not None else None, |
| 114 | + n_steps_input=n_steps_input, |
| 115 | + n_steps_output=n_steps_output, |
| 116 | + stride=stride, |
| 117 | + input_channel_idxs=input_channel_idxs, |
| 118 | + output_channel_idxs=output_channel_idxs, |
| 119 | + full_trajectory_mode=True, |
| 120 | + dtype=dtype, |
| 121 | + verbose=self.verbose, |
| 122 | + use_normalization=self.use_normalization, |
| 123 | + norm=norm, |
| 124 | + ) |
| 125 | + self.batch_size = batch_size |
| 126 | + |
| 127 | + def train_dataloader(self) -> DataLoader: |
| 128 | + """DataLoader for training.""" |
| 129 | + return DataLoader( |
| 130 | + self.train_dataset, |
| 131 | + batch_size=self.batch_size, |
| 132 | + shuffle=True, |
| 133 | + num_workers=1, |
| 134 | + collate_fn=collate_batches, |
| 135 | + ) |
| 136 | + |
| 137 | + def val_dataloader(self) -> DataLoader: |
| 138 | + """DataLoader for standard validation (not full trajectory rollouts).""" |
| 139 | + return DataLoader( |
| 140 | + self.val_dataset, |
| 141 | + batch_size=self.batch_size, |
| 142 | + shuffle=False, |
| 143 | + num_workers=1, |
| 144 | + collate_fn=collate_batches, |
| 145 | + ) |
| 146 | + |
| 147 | + def rollout_val_dataloader(self) -> DataLoader: |
| 148 | + """DataLoader for full trajectory rollouts on validation data.""" |
| 149 | + return DataLoader( |
| 150 | + self.rollout_val_dataset, |
| 151 | + batch_size=self.batch_size, |
| 152 | + shuffle=False, |
| 153 | + num_workers=1, |
| 154 | + collate_fn=collate_batches, |
| 155 | + ) |
| 156 | + |
| 157 | + def test_dataloader(self) -> DataLoader: |
| 158 | + """DataLoader for testing.""" |
| 159 | + return DataLoader( |
| 160 | + self.test_dataset, |
| 161 | + batch_size=self.batch_size, |
| 162 | + shuffle=False, |
| 163 | + num_workers=1, |
| 164 | + collate_fn=collate_batches, |
| 165 | + ) |
| 166 | + |
| 167 | + def rollout_test_dataloader(self) -> DataLoader: |
| 168 | + """DataLoader for full trajectory rollouts on test data.""" |
| 169 | + return DataLoader( |
| 170 | + self.rollout_test_dataset, |
| 171 | + batch_size=self.batch_size, |
| 172 | + shuffle=False, |
| 173 | + num_workers=1, |
| 174 | + collate_fn=collate_batches, |
| 175 | + ) |
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