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paddlepaddle--paddle/test/legacy_test/test_swish_op.py
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2026-07-13 12:40:42 +08:00

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# Copyright (c) 2025 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 copy
import unittest
import numpy as np
from op_test import get_device_place, get_places, is_custom_device
from scipy.special import expit
import paddle
import paddle.base.dygraph as dg
import paddle.nn.functional as F
from paddle import base, nn
def ref_swish(x):
out = x * expit(x)
return out
class TestSwishOpClass_Inplace(unittest.TestCase):
def _test_case1_cpu(self):
x = np.random.uniform(-1, 1, [10, 12]).astype(np.float32)
y_ref = ref_swish(x)
place = base.CPUPlace()
with dg.guard(place) as g:
x_var1 = paddle.to_tensor(x)
x_var2 = paddle.to_tensor(x)
y_var1 = F.swish(x_var1, True)
y_test1 = y_var1.numpy()
func = nn.Swish(True)
y_var2 = func(x_var2)
y_test2 = y_var2.numpy()
np.testing.assert_allclose(y_ref, y_test1, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(y_ref, y_test2, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(
y_ref, x_var1.numpy(), rtol=1e-05, atol=1e-08
)
np.testing.assert_allclose(
y_ref, x_var2.numpy(), rtol=1e-05, atol=1e-08
)
def _test_case1_gpu(self):
x = np.random.uniform(-1, 1, [10, 12]).astype(np.float32)
y_ref = ref_swish(x)
place = get_device_place()
with dg.guard(place) as g:
x_var1 = paddle.to_tensor(x)
x_var2 = paddle.to_tensor(x)
y_var1 = F.swish(x_var1, True)
y_test1 = y_var1.numpy()
func = nn.Swish(True)
y_var2 = func(x_var2)
y_test2 = y_var2.numpy()
np.testing.assert_allclose(y_ref, y_test1, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(y_ref, y_test2, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(
y_ref, x_var1.numpy(), rtol=1e-05, atol=1e-08
)
np.testing.assert_allclose(
y_ref, x_var2.numpy(), rtol=1e-05, atol=1e-08
)
def test_cases(self):
self._test_case1_cpu()
if base.is_compiled_with_cuda() or is_custom_device():
self._test_case1_gpu()
class TestSwishAPI(unittest.TestCase):
def setUp(self):
np.random.seed(0)
self.shape = [10, 12]
self.x_np = np.random.uniform(-1, 1, self.shape).astype(np.float32)
self.place = get_places()
self.x_feed = copy.deepcopy(self.x_np)
def test_api_static(self):
paddle.enable_static()
def run(place, inplace):
with paddle.static.program_guard(paddle.static.Program()):
x = paddle.static.data('X', self.shape)
out = F.swish(x, inplace)
exe = paddle.static.Executor(self.place[0])
res = exe.run(
feed={
'X': self.x_feed,
},
fetch_list=[out],
)
target = copy.deepcopy(self.x_np)
out_ref = ref_swish(target)
for out in res:
np.testing.assert_allclose(out, out_ref, rtol=0.001)
for place in self.place:
run(place, True)
run(place, False)
def test_api_dygraph(self):
def run(place, inplace):
paddle.disable_static(place)
x_tensor = paddle.to_tensor(self.x_np)
out = F.swish(x_tensor, inplace)
target = copy.deepcopy(self.x_np)
out_ref = ref_swish(target)
np.testing.assert_allclose(out.numpy(), out_ref, rtol=0.001)
paddle.enable_static()
for place in self.place:
run(place, True)
run(place, False)
if __name__ == '__main__':
unittest.main()