def test_bucketing(self):
r"""Tests bucketing.
"""
hparams = copy.deepcopy(self._hparams)
hparams.update({
"bucket_boundaries": [7],
"bucket_batch_sizes": [6, 4]
})
text_data = MonoTextData(hparams)
iterator = DataIterator(text_data)
hparams.update({
"bucket_boundaries": [7],
"bucket_batch_sizes": [7, 7],
"allow_smaller_final_batch": False
})
text_data_1 = MonoTextData(hparams)
iterator_1 = DataIterator(text_data_1)
for data_batch, data_batch_1 in zip(iterator, iterator_1):
length = data_batch['length'][0]
if length < 7:
last_batch_size = hparams['num_epochs'] % 6
self.assertTrue(
len(data_batch['text']) == 6
or len(data_batch['text']) == last_batch_size)
else:
last_batch_size = hparams['num_epochs'] % 4
self.assertTrue(
len(data_batch['text']) == 4
or len(data_batch['text']) == last_batch_size)
self.assertEqual(len(data_batch_1['text']), 7)
def test_iterator_single_dataset(self):
r"""Tests iterating over a single dataset.
"""
data = MonoTextData(self._test_hparams)
data_iterator = DataIterator(data)
data_iterator.switch_to_dataset(dataset_name="data")
iterator = data_iterator.get_iterator()
i = 1001
for idx, batch in enumerate(iterator):
self.assertEqual(batch.batch_size, self._test_hparams['batch_size'])
np.testing.assert_array_equal(batch['length'], [1, 1])
for example in batch['text']:
self.assertEqual(example[0], str(i))
i += 1
self.assertEqual(i, 2001)
def _run_and_test(self, hparams):
# Construct database
text_data = MonoTextData(hparams)
self.assertEqual(
text_data.vocab.size,
self._vocab_size + len(text_data.vocab.special_tokens))
iterator = DataIterator(text_data)
for data_batch in iterator:
# Run the logics
self.assertEqual(set(data_batch.keys()),
set(text_data.list_items()))
# Test utterance count
utt_ind = np.sum(data_batch["text_ids"], 2) != 0
utt_cnt = np.sum(utt_ind, 1)
self.assertListEqual(
data_batch[text_data.utterance_cnt_name].tolist(),
utt_cnt.tolist())
if text_data.hparams.dataset.pad_to_max_seq_length:
max_l = text_data.hparams.dataset.max_seq_length
max_l += text_data._decoder.added_length
for x in data_batch['text']:
for xx in x:
self.assertEqual(len(xx), max_l)
for x in data_batch['text_ids']:
for xx in x:
self.assertEqual(len(xx), max_l)
def test_dynamic_batching(self):
r"""Tests dynamic batching using :class:`texar.torch.data.BatchingStrategy`.
"""
sent_lengths = np.random.randint(10, 20, size=(100, ))
sentences = [['a'] * length for length in sent_lengths]
data_source = SequenceDataSource(sentences)
class CustomData(DataBase):
def __init__(self, source):
super().__init__(source)
def process(self, raw_example):
return raw_example
def collate(self, examples):
return Batch(len(examples), text=examples)
train_data = CustomData(data_source)
batch_size = 5
max_tokens = 75
strategy = TokenCountBatchingStrategy(max_tokens, batch_size, len)
iterator = DataIterator(train_data, strategy)
for batch in iterator:
self.assertLessEqual(len(batch), batch_size)
self.assertLessEqual(sum(len(s) for s in batch.text), max_tokens)
def _test_modes_with_workers(self, lazy_mode: str, cache_mode: str,
num_workers: int):
from tqdm import tqdm
gc.collect()
mem = get_process_memory()
with work_in_progress(f"Data loading with lazy mode '{lazy_mode}' "
f"and cache mode '{cache_mode}' "
f"with {num_workers} workers"):
print(f"Memory before: {mem:.2f} MB")
with work_in_progress("Construction"):
data = ParallelData(self.source,
'../../Downloads/src.vocab',
'../../Downloads/tgt.vocab',
{'batch_size': self.batch_size,
'lazy_strategy': lazy_mode,
'cache_strategy': cache_mode,
'num_parallel_calls': num_workers,
'shuffle': False,
'allow_smaller_final_batch': False,
'max_dataset_size': 100000})
print(f"Memory after construction: {mem:.2f} MB")
iterator = DataIterator(data)
with work_in_progress("Iteration"):
for batch in tqdm(iterator, leave=False):
self.assertEqual(batch.batch_size, self.batch_size)
gc.collect()
print(f"Memory after iteration: {mem:.2f} MB")
with work_in_progress("2nd iteration"):
for batch in tqdm(iterator, leave=False):
self.assertEqual(batch.batch_size, self.batch_size)
def setUp(self):
self.batch_size = 4
self.num_label = len(pathologies)
data_hparams = {
"datasource": {
"img_root": "tests/test_iu_xray_data/iu_xray_images",
"text_root": "tests/test_iu_xray_data/text_root",
"vocab_path": "tests/test_iu_xray_data/test_vocab.txt",
"transforms": transforms,
"pathologies": pathologies,
},
"batch_size": self.batch_size,
"shuffle": False,
}
dataset = IU_XRay_Dataset(data_hparams)
dataset.to(torch.device('cpu'))
self.loader = DataIterator(dataset)
self.extractor = SimpleFusionEncoder()
mlc_hparam = {
'num_tags': len(pathologies),
}
self.mlc = MLC(mlc_hparam)
self.mlc_trainer = MLCTrainer(mlc_hparam)
self.loss = torch.nn.BCEWithLogitsLoss()
def _run_and_test(self, hparams):
# Construct database
record_data = RecordData(hparams)
iterator = DataIterator(record_data)
def _prod(lst):
res = 1
for i in lst:
res *= i
return res
for idx, data_batch in enumerate(iterator):
self.assertEqual(set(data_batch.keys()),
set(record_data.list_items()))
# Check data consistency
for key in self._unconvert_features:
value = data_batch[key][0]
self.assertEqual(value, self._dataset_valid[key][idx])
self.assertEqual(list(data_batch['shape'][0]),
list(self._dataset_valid['shape'][idx]))
# Check data type conversion
for key, item in self._feature_convert_types.items():
dtype = get_numpy_dtype(item)
value = data_batch[key][0]
if dtype is np.str_:
self.assertIsInstance(value, str)
elif dtype is np.bytes_:
self.assertIsInstance(value, bytes)
else:
if isinstance(value, torch.Tensor):
value_dtype = get_numpy_dtype(value.dtype)
else:
value_dtype = value.dtype
dtype_matched = np.issubdtype(value_dtype, dtype)
self.assertTrue(dtype_matched)
# Check image decoding and resize
if hparams["dataset"].get("image_options"):
image_options = hparams["dataset"].get("image_options")
if isinstance(image_options, dict):
image_options = [image_options]
for image_option_feature in image_options:
image_key = image_option_feature.get("image_feature_name")
if image_key is None:
continue
image_gen = data_batch[image_key][0]
image_valid_shape = self._dataset_valid["shape"][idx]
resize_height = image_option_feature.get("resize_height")
resize_width = image_option_feature.get("resize_width")
if resize_height and resize_width:
self.assertEqual(
image_gen.shape[0] * image_gen.shape[1],
resize_height * resize_width)
else:
self.assertEqual(_prod(image_gen.shape),
_prod(image_valid_shape))
def _run_and_test(self,
hparams,
test_batch_size=False,
test_transform=False):
# Construct database
text_data = MonoTextData(hparams)
self.assertEqual(
text_data.vocab.size,
self._vocab_size + len(text_data.vocab.special_tokens))
iterator = DataIterator(text_data)
for data_batch in iterator:
self.assertEqual(set(data_batch.keys()),
set(text_data.list_items()))
if test_batch_size:
self.assertEqual(len(data_batch['text']),
hparams['batch_size'])
if test_transform:
for i in range(len(data_batch['text'])):
text_ = data_batch['text'][i]
self.assertTrue(text_ in self.upper_cased_text)
max_seq_length = text_data.hparams.dataset.max_seq_length
mode = text_data.hparams.dataset.length_filter_mode
max_l = max_seq_length
if max_seq_length is not None:
if text_data.hparams.dataset.eos_token != '':
max_l += 1
if text_data.hparams.dataset.bos_token != '':
max_l += 1
if max_seq_length == 6:
for length in data_batch['length']:
self.assertLessEqual(length, max_l)
if mode == "discard":
for length in data_batch['length']:
self.assertEqual(length, 5)
elif mode == "truncate":
num_length_6 = 0
for length in data_batch['length']:
num_length_6 += int(length == 6)
self.assertGreater(num_length_6, 0)
else:
raise ValueError("Unknown mode: %s" % mode)
if text_data.hparams.dataset.pad_to_max_seq_length:
for x in data_batch['text']:
self.assertEqual(len(x), max_l)
for x in data_batch['text_ids']:
self.assertEqual(len(x), max_l)
def _run_and_test(self,
hparams,
proc_shr=False,
test_transform=None,
discard_src=False):
# Construct database
text_data = PairedTextData(hparams)
self.assertEqual(
text_data.source_vocab.size,
self._vocab_size + len(text_data.source_vocab.special_tokens))
iterator = DataIterator(text_data)
for data_batch in iterator:
self.assertEqual(set(data_batch.keys()),
set(text_data.list_items()))
if proc_shr:
tgt_eos = '<EOS>'
else:
tgt_eos = '<TARGET_EOS>'
# Test matching
src_text = data_batch['source_text']
tgt_text = data_batch['target_text']
if proc_shr:
for src, tgt in zip(src_text, tgt_text):
np.testing.assert_array_equal(src[:3], tgt[:3])
else:
for src, tgt in zip(src_text, tgt_text):
np.testing.assert_array_equal(src[:3], tgt[1:4])
self.assertTrue(tgt_eos in data_batch['target_text'][0])
if test_transform:
for i in range(len(data_batch['source_text'])):
text_ = data_batch['source_text'][i]
self.assertTrue(text_ in self.src_upper_cased_text)
for i in range(len(data_batch['target_text'])):
text_ = data_batch['target_text'][i]
self.assertTrue(text_ in self.tgt_upper_cased_text)
if discard_src:
src_hparams = text_data.hparams.source_dataset
max_l = src_hparams.max_seq_length
max_l += sum(
int(x is not None and x != '') for x in
[text_data._src_bos_token, text_data._tgt_bos_token])
for l in data_batch["source_length"]:
self.assertLessEqual(l, max_l)
def test_auto_storage_moving(self):
cuda_tensors = set()
def move_tensor(tensor, device, non_blocking=False):
if isinstance(device, torch.device) and device.type == "cuda":
self.assertTrue(non_blocking)
cuda_tensors.add(id(tensor))
return tensor
device = torch.device("cuda:0")
with patch.object(torch.Tensor, "to", move_tensor):
train = MonoTextData(self._train_hparams, device=device)
iterator = DataIterator(train)
for batch in iterator:
self.assertTrue(id(batch.text_ids) in cuda_tensors)
self.assertTrue(id(batch.length) in cuda_tensors)
def setUp(self):
self.batch_size = 4
self.num_label = len(pathologies)
hparams = {
"datasource": {
"img_root": "tests/test_iu_xray_data/iu_xray_images",
"text_root": "tests/test_iu_xray_data/text_root",
"vocab_path": "tests/test_iu_xray_data/test_vocab.txt",
"transforms": transforms,
"pathologies": pathologies,
},
"batch_size": self.batch_size,
"shuffle": False,
}
dataset = IU_XRay_Dataset(hparams)
dataset.to(torch.device('cpu'))
self.vocab = dataset.source.vocab
self.ground_truth_keys = [
'img_tensor', 'label', 'token_tensor', 'stop_prob'
]
self.ground_truth_findings = [
'cardiac and mediastinal contours '
'are within normal limits <EOS> the '
'lungs are clear <EOS> bony structures '
'are intact <EOS>'
]
self.ground_truth_token_tensors = torch.Tensor([
[61, 10, 36, 55, 7, 25, 8, 28, 2, 0, 0, 0],
[5, 19, 7, 21, 2, 0, 0, 0, 0, 0, 0, 0],
[58, 52, 7, 73, 2, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
]).to(torch.long)
self.loader = DataIterator(dataset)
def _run_and_test(self, hparams, discard_index=None):
# Construct database
text_data = MultiAlignedData(hparams)
self.assertEqual(
text_data.vocab(0).size,
self._vocab_size + len(text_data.vocab(0).special_tokens))
iterator = DataIterator(text_data)
for batch in iterator:
self.assertEqual(set(batch.keys()), set(text_data.list_items()))
text_0 = batch['0_text']
text_1 = batch['1_text']
text_2 = batch['2_text']
int_3 = batch['label']
number_1 = batch['4_number1']
number_2 = batch['4_number2']
text_4 = batch['4_text']
for t0, t1, t2, i3, n1, n2, t4 in zip(text_0, text_1, text_2,
int_3, number_1, number_2,
text_4):
np.testing.assert_array_equal(t0[:2], t1[1:3])
np.testing.assert_array_equal(t0[:3], t2[1:4])
if t0[0].startswith('This'):
self.assertEqual(i3, 0)
else:
self.assertEqual(i3, 1)
self.assertEqual(n1, 128)
self.assertEqual(n2, 512)
self.assertTrue(isinstance(n1, torch.Tensor))
self.assertTrue(isinstance(n2, torch.Tensor))
self.assertTrue(isinstance(t4, str))
if discard_index is not None:
hpms = text_data._hparams.datasets[discard_index]
max_l = hpms.max_seq_length
max_l += sum(
int(x is not None and x != '') for x in [
text_data.vocab(discard_index).bos_token,
text_data.vocab(discard_index).eos_token
])
for i in range(2):
for length in batch[text_data.length_name(i)]:
self.assertLessEqual(length, max_l)
# TODO(avinash): Add this back once variable utterance is added
# for lengths in batch[text_data.length_name(2)]:
# for length in lengths:
# self.assertLessEqual(length, max_l)
for i, hpms in enumerate(text_data._hparams.datasets):
if hpms.data_type != "text":
continue
max_l = hpms.max_seq_length
mode = hpms.length_filter_mode
if max_l is not None and mode == "truncate":
max_l += sum(
int(x is not None and x != '') for x in [
text_data.vocab(i).bos_token,
text_data.vocab(i).eos_token
])
for length in batch[text_data.length_name(i)]:
self.assertLessEqual(length, max_l)
def _test_modes_with_workers(self,
lazy_mode: str,
cache_mode: str,
num_workers: int,
parallelize_processing: bool = True,
support_random_access: bool = False,
shuffle: bool = False,
**kwargs):
hparams = {
'batch_size': self.batch_size,
'lazy_strategy': lazy_mode,
'cache_strategy': cache_mode,
'num_parallel_calls': num_workers,
'shuffle': shuffle,
'shuffle_buffer_size': self.size // 5,
'parallelize_processing': parallelize_processing,
'allow_smaller_final_batch': False,
**kwargs,
}
numbers_data = [[x] * self.seq_len for x in range(self.size)]
string_data = [
' '.join(map(str, range(self.seq_len))) for _ in range(self.size)
]
if not support_random_access:
source = ZipDataSource( # type: ignore
IterDataSource(numbers_data), SequenceDataSource(string_data))
else:
source = ZipDataSource(SequenceDataSource(numbers_data),
SequenceDataSource(string_data))
data = MockDataBase(source, hparams) # type: ignore
iterator = DataIterator(data)
if data._hparams.allow_smaller_final_batch:
total_examples = self.size
total_batches = (self.size + self.batch_size -
1) // self.batch_size
else:
total_examples = self.size // self.batch_size * self.batch_size
total_batches = self.size // self.batch_size
def check_batch(idx, batch):
if idx == total_batches - 1:
batch_size = (total_examples - 1) % self.batch_size + 1
else:
batch_size = self.batch_size
self.assertEqual(batch.numbers.shape, (batch_size, self.seq_len))
if not shuffle:
numbers = np.asarray(
[idx * self.batch_size + x + 1 for x in range(batch_size)])
self.assertTrue(np.all(batch.numbers == numbers[:,
np.newaxis]))
# check laziness
if parallelize_processing:
if lazy_mode == 'none':
self.assertEqual(len(data._processed_cache), self.size)
else:
self.assertEqual(len(data._processed_cache), 0)
if not support_random_access:
if lazy_mode == 'process':
self.assertEqual(len(data._cached_source._cache),
self.size)
else:
self.assertEqual(len(data._cached_source._cache), 0)
# first epoch
cnt = 0
for idx, batch in enumerate(iterator):
check_batch(idx, batch)
cnt += 1
self.assertEqual(cnt, total_batches)
# check cache
if parallelize_processing:
if cache_mode == 'none':
self.assertEqual(len(data._processed_cache), 0)
elif cache_mode == 'loaded':
self.assertEqual(len(data._processed_cache), 0)
else:
self.assertEqual(len(data._processed_cache), self.size)
if lazy_mode != 'none' and not support_random_access:
if cache_mode == 'none':
self.assertEqual(len(data._cached_source._cache), 0)
elif cache_mode == 'loaded':
self.assertEqual(len(data._cached_source._cache),
self.size)
else:
self.assertEqual(len(data._cached_source._cache), 0)
# second epoch
cnt = 0
for idx, batch in enumerate(iterator):
check_batch(idx, batch)
cnt += 1
self.assertEqual(cnt, total_batches)
# check again
if parallelize_processing:
if cache_mode == 'none':
self.assertEqual(len(data._processed_cache), 0)
elif cache_mode == 'loaded':
self.assertEqual(len(data._processed_cache), 0)
else:
self.assertEqual(len(data._processed_cache), self.size)
if lazy_mode != 'none' and not support_random_access:
if cache_mode == 'none':
self.assertEqual(len(data._cached_source._cache), 0)
elif cache_mode == 'loaded':
self.assertEqual(len(data._cached_source._cache),
self.size)
else:
self.assertEqual(len(data._cached_source._cache), 0)
def test_iterator_multi_datasets(self):
r"""Tests iterating over multiple datasets.
"""
train = MonoTextData(self._train_hparams)
test = MonoTextData(self._test_hparams)
train_batch_size = self._train_hparams["batch_size"]
test_batch_size = self._test_hparams["batch_size"]
data_iterator = DataIterator({"train": train, "test": test})
data_iterator.switch_to_dataset(dataset_name="train")
iterator = data_iterator.get_iterator()
for idx, val in enumerate(iterator):
self.assertEqual(len(val), train_batch_size)
number = idx * train_batch_size + 1
self.assertEqual(val.text[0], [str(number)])
# numbers: 1 - 2000, first 4 vocab entries are special tokens
self.assertEqual(val.text_ids[0], torch.tensor(number + 3))
data_iterator.switch_to_dataset(dataset_name="test")
iterator = data_iterator.get_iterator()
for idx, val in enumerate(iterator):
self.assertEqual(len(val), test_batch_size)
number = idx * test_batch_size + 1001
self.assertEqual(val.text[0], [str(number)])
self.assertEqual(val.text_ids[0], torch.tensor(number + 3))
# test `get_iterator` interface
for idx, val in enumerate(data_iterator.get_iterator('train')):
self.assertEqual(len(val), train_batch_size)
number = idx * train_batch_size + 1
self.assertEqual(val.text[0], [str(number)])
self.assertEqual(val.text_ids[0], torch.tensor(number + 3))
# test exception for invalid dataset name
with self.assertRaises(ValueError) as context:
data_iterator.switch_to_dataset('val')
self.assertTrue('not found' in str(context.exception))
len(examples),
img_tensor=img_tensor,
label=label,
token_tensor=token_tensor,
stop_prob=stop_prob,
)
@staticmethod
def default_hparams():
r"""Returns a dictionary of hyperparameters with default values.
Returns: (Dict) default hyperparameters
"""
hparams = DatasetBase.default_hparams()
hparams.update({
"datasource": None,
})
return hparams
if __name__ == "__main__":
dataset_hparams = config.dataset
dataset = IU_XRay_Dataset(dataset_hparams["train"])
# Dataloader
dataset.to(torch.device('cpu'))
train_loader = DataIterator(dataset)
for batch in train_loader:
print(batch)
break
