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

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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 sys
import numpy as np
sys.path.append("..")
import paddle
from legacy_test.test_dist_base import (
TestParallelDyGraphRunnerBase,
runtime_main,
)
np.random.seed(2021)
paddle.seed(1024)
batch_size = 4
batch_num = 1000
class SimpleNet(paddle.nn.Layer):
def __init__(self):
super().__init__()
self.net_a = paddle.nn.Sequential(
paddle.nn.Linear(10, 20),
paddle.nn.Linear(20, 20),
paddle.nn.Linear(20, 5),
)
self.net_b = paddle.nn.Sequential(
paddle.nn.Linear(10, 20),
paddle.nn.Linear(20, 20),
paddle.nn.Linear(20, 5),
)
self.step = 0
def forward(self, x):
return paddle.to_tensor([0.0], dtype='float32')
def fake_sample_reader():
def __reader__():
for i in range(batch_num):
x_data = np.random.random_sample((10,)).astype('float32')
yield x_data
return __reader__
class TestSimpleNet(TestParallelDyGraphRunnerBase):
def get_model(self):
model = SimpleNet()
train_reader = paddle.batch(
fake_sample_reader(), batch_size=batch_size, drop_last=True
)
optimizer = paddle.optimizer.SGD(
learning_rate=0.001, parameters=model.parameters()
)
return model, train_reader, optimizer
def run_one_loop(self, model, optimizer, batch):
x_data = np.array(list(batch))
x_data = x_data.reshape((-1, 10))
x = paddle.to_tensor(x_data)
out = model(x)
loss = out.sum() / len(batch)
return loss
if __name__ == "__main__":
runtime_main(TestSimpleNet)