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

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Python

# Copyright (c) 2022 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
import paddle.nn.functional as F
from paddle import nn
from paddle.base import core, framework
from paddle.nn import BatchNorm
np.random.seed(2023)
class PrimeNet(paddle.nn.Layer):
def __init__(self):
super().__init__()
self.conv = nn.Conv2D(2, 4, (3, 3), bias_attr=False)
self.bn = BatchNorm(4, act="relu")
def forward(self, x):
y = self.conv(x)
out = self.bn(y)
res = F.max_pool2d(out, kernel_size=2, stride=2, padding=0)
return res
class TestPrimAMPO1(unittest.TestCase):
"""
Test PrimeNet with @to_static + prim v.s Dygraph in AMPO1.
"""
def setUp(self):
paddle.seed(2022)
self.x = paddle.randn([4, 2, 6, 6], dtype="float32")
self.x.stop_gradient = False
self.atol = 1e-3
self.rtol = 1e-3
if paddle.is_compiled_with_xpu():
self.atol = 5e-3
self.rtol = 5e-3
def train(self, use_prim):
core._set_prim_all_enabled(use_prim)
paddle.seed(2022)
net = PrimeNet()
sgd = paddle.optimizer.SGD(
learning_rate=0.1, parameters=net.parameters()
)
if use_prim:
net = paddle.jit.to_static(
net, build_strategy=False, full_graph=True
)
with paddle.amp.auto_cast(level='O1'):
out = net(self.x)
loss = paddle.mean(out)
loss.backward()
sgd.step()
sgd.clear_grad()
return loss
def test_amp_01(self):
if not isinstance(framework._current_expected_place(), core.CPUPlace):
expected = self.train(False)
actual = self.train(True)
np.testing.assert_allclose(
expected,
actual,
rtol=self.rtol,
atol=self.atol,
)
def test_amp_O1_infer(self):
if not isinstance(framework._current_expected_place(), core.CPUPlace):
net = PrimeNet()
core._set_prim_all_enabled(False)
net.eval()
static_net = paddle.jit.to_static(
net, build_strategy=False, full_graph=True
)
res = static_net(self.x)
# set prim all enabled
core._set_prim_all_enabled(True)
net.eval()
static_net = paddle.jit.to_static(
net, build_strategy=False, full_graph=True
)
with paddle.amp.auto_cast(level='O1'):
res_amp = static_net(self.x)
np.testing.assert_allclose(
res,
res_amp,
rtol=self.rtol,
atol=self.atol,
)
if __name__ == '__main__':
unittest.main()