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

129 lines
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Python

# Copyright (c) 2021 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
import paddle
from paddle import optimizer
class TestOptimizerForVarBase(unittest.TestCase):
def setUp(self):
self.lr = 0.01
def run_optimizer_step_with_varbase_list_input(self, optimizer):
x = paddle.zeros([2, 3])
y = paddle.ones([2, 3])
x.stop_gradient = False
z = x + y
opt = optimizer(
learning_rate=self.lr, parameters=[x], weight_decay=0.01
)
z.backward()
opt.step()
np.testing.assert_allclose(
x.numpy(), np.full([2, 3], -self.lr), rtol=1e-05
)
def run_optimizer_minimize_with_varbase_list_input(self, optimizer):
x = paddle.zeros([2, 3])
y = paddle.ones([2, 3])
x.stop_gradient = False
z = x + y
opt = optimizer(learning_rate=self.lr, parameters=[x])
z.backward()
opt.minimize(z)
np.testing.assert_allclose(
x.numpy(), np.full([2, 3], -self.lr), rtol=1e-05
)
def test_adam_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.Adam)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.Adam)
def test_sgd_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.SGD)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.SGD)
def test_adagrad_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.Adagrad)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.Adagrad)
def test_adamw_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.AdamW)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.AdamW)
def test_adamax_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.Adamax)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.Adamax)
def test_momentum_with_varbase_list_input(self):
self.run_optimizer_step_with_varbase_list_input(optimizer.Momentum)
self.run_optimizer_minimize_with_varbase_list_input(optimizer.Momentum)
def test_optimizer_with_varbase_input(self):
x = paddle.zeros([2, 3])
with self.assertRaises(TypeError):
optimizer.Adam(learning_rate=self.lr, parameters=x)
def test_create_param_lr_with_1_for_coverage(self):
x = paddle.base.framework.EagerParamBase(
dtype="float32",
shape=[5, 10],
name="x",
optimize_attr={'learning_rate': 1.0},
)
x.value().get_tensor().set(
np.random.random((5, 10)).astype('float32'),
paddle.base.framework._current_expected_place(),
)
y = paddle.ones([5, 10])
z = x + y
opt = optimizer.Adam(learning_rate=self.lr, parameters=[x])
z.backward()
opt.step()
def test_create_param_lr_with_no_1_value_for_coverage(self):
x = paddle.base.framework.EagerParamBase(
dtype="float32",
shape=[5, 10],
name="x",
optimize_attr={'learning_rate': 0.12},
)
x.value().get_tensor().set(
np.random.random((5, 10)).astype('float32'),
paddle.base.framework._current_expected_place(),
)
y = paddle.ones([5, 10])
z = x + y
opt = optimizer.Adam(learning_rate=self.lr, parameters=[x])
z.backward()
opt.step()
if __name__ == "__main__":
unittest.main()