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

78 lines
2.3 KiB
Python

# Copyright (c) 2020 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
import paddle
from paddle import base
from paddle.nn import Linear
class MLP(paddle.nn.Layer):
def __init__(self, param_attr=None, bias_attr=None):
super().__init__()
self._linear1 = Linear(784, 10)
self._linear2 = Linear(10, 10)
def forward(self, inputs):
y = self._linear1(inputs)
y = self._linear2(y)
return y
class TestDataParallelStateDict(unittest.TestCase):
def test_data_parallel_state_dict(self):
with base.dygraph.guard():
paddle.distributed.init_parallel_env()
mlp = MLP()
parallel_mlp = paddle.DataParallel(mlp)
single_state = mlp.state_dict()
parallel_state = parallel_mlp.state_dict()
base_para = {}
place = get_device_place()
for k, v in single_state.items():
self.assertTrue(k in parallel_state)
np.testing.assert_array_equal(
v.numpy(), parallel_state[k].numpy()
)
base_para[k] = v.numpy()
for k, v in parallel_state.items():
np_t = v.numpy()
var = v.value().get_tensor()
var.set(np.zeros_like(np_t), place)
self.assertTrue(np.sum(np.abs(v.numpy())) == 0)
parallel_mlp.set_dict(base_para)
parallel_state = parallel_mlp.state_dict()
for k, v in parallel_state.items():
np.testing.assert_array_equal(v.numpy(), base_para[k])
parallel_mlp.load_dict(base_para)
if __name__ == '__main__':
unittest.main()