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paddlepaddle--paddle/test/legacy_test/test_silu_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 OpTest, get_device_place, get_places, is_custom_device
import paddle
import paddle.base.dygraph as dg
import paddle.nn.functional as F
from paddle import base, nn
def silu(x):
y_ref = x * (1 / (1 + np.exp(-x)))
return y_ref.astype(x.dtype)
class TestSiluOpClass(unittest.TestCase):
def _test_case1_cpu(self):
x = np.random.uniform(-1, 1, size=(11, 17)).astype(np.float32)
y_ref = silu(x)
place = base.CPUPlace()
with dg.guard(place) as g:
x_var = paddle.to_tensor(x)
y_var1 = F.silu(x_var)
y_test1 = y_var1.numpy()
func = nn.Silu()
y_var2 = func(x_var)
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)
def _test_case1_gpu(self):
x = np.random.uniform(-1, 1, size=(11, 17)).astype(np.float32)
y_ref = silu(x)
place = get_device_place()
with dg.guard(place) as g:
x_var = paddle.to_tensor(x)
y_var1 = F.silu(x_var)
y_test1 = y_var1.numpy()
func = nn.Silu()
y_var2 = func(x_var)
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)
def test_cases(self):
self._test_case1_cpu()
if base.is_compiled_with_cuda() or is_custom_device():
self._test_case1_gpu()
def test_fast_math(self):
if not (paddle.is_compiled_with_cuda() or is_custom_device()):
return
def use_fast_math(enabled):
paddle.set_flags({'FLAGS_use_fast_math': enabled})
shape = [11, 17, 8]
x_np = np.random.uniform(-1, 1, size=shape).astype(np.float16)
y_g_np = np.random.uniform(-1, 1, size=shape).astype(np.float16)
def run_silu_op():
with dg.guard():
x = paddle.to_tensor(x_np)
x.stop_gradient = False
y = F.silu(x)
x_grad = paddle.grad([y], [x], [paddle.to_tensor(y_g_np)])[0]
return y.numpy(), x_grad.numpy()
def run_silu_class():
with dg.guard():
x = paddle.to_tensor(x_np)
x.stop_gradient = False
func = nn.Silu()
y = func(x)
x_grad = paddle.grad([y], [x], [paddle.to_tensor(y_g_np)])[0]
return y.numpy(), x_grad.numpy()
use_fast_math(True)
y_fast_math1, x_g_fast_math1 = run_silu_op()
y_fast_math2, x_g_fast_math2 = run_silu_class()
use_fast_math(False)
y_ref1, x_g_ref1 = run_silu_op()
y_ref2, x_g_ref2 = run_silu_class()
np.testing.assert_allclose(
y_ref1, y_fast_math1, rtol=1e-05, atol=0.0005
)
np.testing.assert_allclose(
x_g_ref1, x_g_fast_math1, rtol=1e-05, atol=0.0005
)
np.testing.assert_allclose(
y_ref2, y_fast_math2, rtol=1e-05, atol=0.0005
)
np.testing.assert_allclose(
x_g_ref2, x_g_fast_math2, rtol=1e-05, atol=0.0005
)
class TestSiluOpClass_ZeroSize(unittest.TestCase):
def _test_case1_cpu(self):
x = np.random.uniform(-1, 1, size=(0, 17)).astype(np.float32)
y_ref = silu(x)
place = base.CPUPlace()
with dg.guard(place) as g:
x_var1 = paddle.to_tensor(x)
x_var2 = paddle.to_tensor(x)
x_var1.stop_gradient = False
x_var2.stop_gradient = False
y_var1 = F.silu(x_var1)
y_test1 = y_var1.numpy()
func = nn.Silu()
y_var2 = func(x_var2)
y_test2 = y_var2.numpy()
loss1 = paddle.sum(y_var1)
loss1.backward()
loss2 = paddle.sum(y_var2)
loss2.backward()
np.testing.assert_allclose(y_ref, y_test1, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(x_var1.grad.shape, x_var1.shape)
np.testing.assert_allclose(y_ref, y_test2, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(x_var2.grad.shape, x_var2.shape)
def _test_case1_gpu(self):
x = np.random.uniform(-1, 1, size=(0, 17)).astype(np.float32)
y_ref = silu(x)
place = get_device_place()
with dg.guard(place) as g:
x_var1 = paddle.to_tensor(x)
x_var2 = paddle.to_tensor(x)
x_var1.stop_gradient = False
x_var2.stop_gradient = False
y_var1 = F.silu(x_var1)
y_test1 = y_var1.numpy()
func = nn.Silu()
y_var2 = func(x_var2)
y_test2 = y_var2.numpy()
loss1 = paddle.sum(y_var1)
loss1.backward()
loss2 = paddle.sum(y_var2)
loss2.backward()
np.testing.assert_allclose(y_ref, y_test1, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(x_var1.grad.shape, x_var1.shape)
np.testing.assert_allclose(y_ref, y_test2, rtol=1e-05, atol=1e-08)
np.testing.assert_allclose(x_var2.grad.shape, x_var2.shape)
def test_cases(self):
self._test_case1_cpu()
if base.is_compiled_with_cuda() or is_custom_device():
self._test_case1_gpu()
class TestSiluOpClass_Inplace(unittest.TestCase):
def _test_case1_cpu(self):
x = np.random.uniform(-1, 1, size=(15, 17)).astype(np.float32)
y_ref = silu(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.silu(x_var1, True)
y_test1 = y_var1.numpy()
func = nn.Silu(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, size=(15, 17)).astype(np.float32)
y_ref = silu(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.silu(x_var1, True)
y_test1 = y_var1.numpy()
func = nn.Silu(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 TestSiluParamDecorator(unittest.TestCase):
def setUp(self):
paddle.disable_static()
self.x_np = np.random.random((10, 3, 4)).astype("float64")
self.test_types = ["decorator"]
def do_test(self, test_type):
x = paddle.to_tensor(self.x_np, stop_gradient=False)
if test_type == 'raw':
result = F.silu(x, False)
result.mean().backward()
return result, x.grad
elif test_type == 'decorator':
result = F.silu(input=x, inplace=False)
result.mean().backward()
return result, x.grad
else:
raise ValueError(f"Unknown test type: {test_type}")
def test_all(self):
out_std, grad_x_std = self.do_test('raw')
for test_type in self.test_types:
out, grad_x = self.do_test(test_type)
np.testing.assert_allclose(out.numpy(), out_std.numpy(), rtol=1e-7)
np.testing.assert_allclose(
grad_x.numpy(), grad_x_std.numpy(), rtol=1e-7
)
class TestSiluPrint(unittest.TestCase):
def test_print(self):
print(nn.Silu())
print(nn.Silu(True))
print(nn.Silu(False))
print(nn.Silu(inplace=True))
print(nn.Silu(inplace=False))
class SiluOpDefaultTest(OpTest):
"""the base class of other op testcases"""
def setUp(self):
self.initTestCase()
self.python_api = F.silu
self.op_type = "silu"
self.inputs = {'X': self.X}
self.target = copy.deepcopy(self.X)
self.target = silu(self.target)
self.outputs = {'Out': (self.target)}
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(['X'], 'Out', check_pir=True)
def init_dtype(self):
self.dtype = np.float64
def initTestCase(self):
self.init_dtype()
self.X = np.arange(1, 101, dtype=self.dtype).reshape([10, -1])
if self.dtype == np.complex64 or self.dtype == np.complex128:
self.X = (
np.random.uniform(-1, 1, [10, 10])
+ 1j * np.random.uniform(-1, 1, [10, 10])
).astype(self.dtype)
class SiluOpDefaultTestFP16(SiluOpDefaultTest):
def init_dtype(self):
self.dtype = np.float16
class SiluOpDefaultTestComplex_64(SiluOpDefaultTest):
def init_dtype(self):
self.dtype = np.complex64
class SiluOpDefaultTestComplex_128(SiluOpDefaultTest):
def init_dtype(self):
self.dtype = np.complex128
class TestSiluAPI(unittest.TestCase):
def setUp(self):
np.random.seed(0)
self.shape = [10, 10]
self.x_np = np.random.random(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.silu(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 = silu(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.silu(x_tensor, inplace)
target = copy.deepcopy(self.x_np)
out_ref = silu(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()