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2026-07-13 12:40:42 +08:00

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# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import numpy as np
from op_test_ipu import IPUOpTest
import paddle
import paddle.static
class TestBase(IPUOpTest):
def setUp(self):
self.set_atol()
self.set_training()
self.set_data_feed()
self.set_feed_attr()
self.set_op_attrs()
def set_training(self):
# ctc_loss only support training currently.
self.is_training = True
self.epoch = 1
def set_data_feed(self):
self.batch_size = 16
self.max_seq_length = 5
self.max_label_length = 3
self.num_classes = 5
self.logits_length = np.array(
[self.max_seq_length] * self.batch_size, dtype=np.int64
)
self.labels_length = np.array(
[self.max_label_length] * self.batch_size, dtype=np.int64
)
self.blank = self.num_classes - 1
self.norm_by_times = False
logits = np.random.uniform(
0.1, 1.0, [self.max_seq_length, self.batch_size, self.num_classes]
).astype("float32")
labels = np.random.randint(
0,
self.num_classes - 1,
[self.batch_size, self.max_label_length],
dtype="int32",
)
self.feed_fp32 = {
"Logits": logits,
"Label": labels,
"input_length": self.logits_length.astype("int64"),
"label_length": self.labels_length.astype("int64"),
}
self.feed_fp16 = {
"Logits": logits.astype(np.float16),
"Label": labels,
"input_length": self.logits_length.astype("int64"),
"label_length": self.labels_length.astype("int64"),
}
def set_feed_attr(self):
self.feed_shape = [x.shape for x in self.feed_fp32.values()]
self.feed_list = list(self.feed_fp32.keys())
def set_op_attrs(self):
self.attrs = {
"blank": self.blank,
"norm_by_times": self.norm_by_times,
}
@IPUOpTest.static_graph
def build_model(self):
data = paddle.static.data(
name=self.feed_list[0], shape=self.feed_shape[0], dtype="float32"
)
logits = paddle.nn.Linear(
self.num_classes, self.num_classes, bias_attr=False
)(data)
labels = paddle.static.data(
name=self.feed_list[1], shape=self.feed_shape[1], dtype='int32'
)
input_length = paddle.static.data(
name=self.feed_list[2], shape=self.feed_shape[2], dtype='int64'
)
label_length = paddle.static.data(
name=self.feed_list[3], shape=self.feed_shape[3], dtype='int64'
)
out = paddle.nn.functional.ctc_loss(
logits,
labels,
input_length=input_length,
label_length=label_length,
reduction='mean',
**self.attrs,
)
loss = paddle.mean(out)
adam = paddle.optimizer.Adam(learning_rate=1e-2)
adam.minimize(loss)
self.fetch_list = [loss.name, out.name]
def run_model(self, exec_mode):
self.run_op_test(exec_mode)
def test(self):
for m in IPUOpTest.ExecutionMode:
if not self.skip_mode(m):
self.build_model()
self.run_model(m)
self.check()
if __name__ == "__main__":
unittest.main()