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

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4.5 KiB
Python

# Copyright (c) 2018 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 import get_device_place, is_custom_device
from test_imperative_base import new_program_scope
import paddle
from paddle import base
from paddle.base import core
class RecurrentTest(paddle.nn.Layer):
def __init__(self, name_scope):
super().__init__(name_scope)
def forward(self, in1, in2):
out = paddle.matmul(in1, in2)
sum_out = paddle.sum(out)
return sum_out, out
class TestRecurrentFeed(unittest.TestCase):
def test_recurrent_feed(self):
seed = 90
original_np1 = np.arange(1, 5).reshape(2, 2).astype("float32")
original_np2 = np.arange(5, 9).reshape(2, 2).astype("float32")
with base.dygraph.guard():
paddle.seed(seed)
original_in1 = paddle.to_tensor(original_np1)
original_in2 = paddle.to_tensor(original_np2)
original_in1.stop_gradient = False
original_in2.stop_gradient = False
rt = RecurrentTest("RecurrentTest")
for i in range(3):
sum_out, out = rt(original_in1, original_in2)
out.retain_grads()
original_in1 = out
sum_out_value = sum_out.numpy()
sum_out.backward()
dyout = out.gradient()
original_in1.stop_gradient = True
rt.clear_gradients()
with base.dygraph.guard():
paddle.seed(seed)
original_in1 = paddle.to_tensor(original_np1)
original_in2 = paddle.to_tensor(original_np2)
original_in1.stop_gradient = False
original_in2.stop_gradient = False
rt = RecurrentTest("RecurrentTest")
for i in range(3):
sum_out, out = rt(original_in1, original_in2)
out.retain_grads()
original_in1 = out
eager_sum_out_value = sum_out.numpy()
sum_out.backward()
eager_dyout = out.gradient()
original_in1.stop_gradient = True
rt.clear_gradients()
with new_program_scope():
paddle.seed(seed)
in1 = paddle.static.data(name="inp1", shape=[2, 2])
in1.stop_gradient = False
in2 = paddle.static.data(name="inp2", shape=[2, 2])
in2.stop_gradient = False
rt1 = RecurrentTest("RecurrentTest")
static_sum_out, static_out = rt1(in1, in2)
static_out.persistable = True
exe = base.Executor(
base.CPUPlace()
if not (core.is_compiled_with_cuda() or is_custom_device())
else get_device_place()
)
if paddle.framework.use_pir_api():
grad_list = paddle.static.append_backward(static_sum_out)
_, static_dout = grad_list[-1]
else:
base.backward.append_backward(static_sum_out)
static_dout = (
base.default_main_program()
.block(0)
._find_var_recursive(static_out.name + "@GRAD")
)
fetch_list = [static_sum_out, static_out, static_dout]
for i in range(3):
out = exe.run(
base.default_main_program(),
feed={"inp1": original_np1, "inp2": original_np2},
fetch_list=fetch_list,
)
static_out_value = out[1]
static_sum_out = out[0]
static_dout = out[2]
original_np1 = static_out_value
np.testing.assert_array_equal(static_sum_out, sum_out_value)
np.testing.assert_array_equal(static_sum_out, eager_sum_out_value)
np.testing.assert_array_equal(static_dout, dyout)
np.testing.assert_array_equal(static_dout, eager_dyout)
if __name__ == '__main__':
paddle.enable_static()
unittest.main()