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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 os
import sys
import tempfile
import unittest
from pathlib import Path
from site import getsitepackages
import numpy as np
from paddle.utils.cpp_extension.extension_utils import (
_get_all_paddle_includes_from_include_root,
)
def custom_relu_dynamic(func, device, dtype, np_x, use_func=True):
import paddle
paddle.set_device(device)
t = paddle.to_tensor(np_x, dtype=dtype)
t.stop_gradient = False
t.retain_grads()
sys.stdout.flush()
out = func(t) if use_func else paddle.nn.functional.relu(t)
out.stop_gradient = False
out.backward()
if t.grad is None:
return out.numpy(), t.grad
else:
return out.numpy(), t.grad.numpy()
def custom_relu_static(func, device, dtype, np_x, use_func=True):
import paddle
from paddle import static
paddle.enable_static()
paddle.set_device(device)
with (
static.scope_guard(static.Scope()),
static.program_guard(static.Program()),
):
x = static.data(name="X", shape=[None, 8], dtype=dtype)
x.stop_gradient = False
out = func(x) if use_func else paddle.nn.functional.relu(x)
static.append_backward(out)
exe = static.Executor()
exe.run(static.default_startup_program())
# in static mode, x data has been covered by out
out_v = exe.run(
static.default_main_program(),
feed={"X": np_x},
fetch_list=[out],
)
paddle.disable_static()
return out_v
def custom_relu_double_grad_dynamic(func, device, dtype, np_x, use_func=True):
import paddle
paddle.set_device(device)
t = paddle.to_tensor(np_x, dtype=dtype, stop_gradient=False)
t.retain_grads()
out = func(t) if use_func else paddle.nn.functional.relu(t)
out.retain_grads()
dx = paddle.grad(
outputs=out,
inputs=t,
grad_outputs=paddle.ones_like(t),
create_graph=True,
retain_graph=True,
)
ddout = paddle.grad(
outputs=dx[0],
inputs=out.grad,
grad_outputs=paddle.ones_like(t),
create_graph=False,
)
assert ddout[0].numpy() is not None
return dx[0].numpy(), ddout[0].numpy()
class TestNewCustomOpSetUpInstall(unittest.TestCase):
def setUp(self):
# compile so and set to current path
self.cur_dir = os.path.dirname(os.path.abspath(__file__))
self.temp_dir = tempfile.TemporaryDirectory()
cmd = 'cd {} \
&& git clone --depth 1 {} \
&& cd PaddleCustomDevice \
&& git fetch origin \
&& git checkout {} -b dev \
&& cd backends/custom_cpu \
&& mkdir build && cd build && cmake .. -DPython_EXECUTABLE={} -DWITH_TESTING=OFF && make -j8 \
&& cd {}'.format(
self.temp_dir.name,
os.getenv('PLUGIN_URL'),
os.getenv('PLUGIN_TAG'),
sys.executable,
self.cur_dir,
)
os.system(cmd)
# set environment for loading and registering compiled custom kernels
# only valid in current process
os.environ['CUSTOM_DEVICE_ROOT'] = os.path.join(
self.cur_dir,
f'{self.temp_dir.name}/PaddleCustomDevice/backends/custom_cpu/build',
)
# `import paddle` loads custom_cpu.so, hence we must import paddle after finishing build PaddleCustomDevice
import paddle
# [Why specific paddle_includes directory?]
# Add paddle_includes to pass CI, for more details,
# please refer to the comments in `paddle/tests/custom_op/utils.py``
paddle_includes = []
for site_packages_path in getsitepackages():
paddle_include_dir = Path(site_packages_path) / "paddle/include"
paddle_includes.extend(
_get_all_paddle_includes_from_include_root(
str(paddle_include_dir)
)
)
custom_module = paddle.utils.cpp_extension.load(
name='custom_device',
sources=['custom_op.cc'],
extra_include_paths=paddle_includes, # add for Coverage CI
extra_cxx_cflags=["-w", "-g"], # test for cc flags
# build_directory=self.cur_dir,
verbose=True,
)
self.custom_op = custom_module.custom_relu
self.custom_stream_op = custom_module.custom_stream
self.dtypes = ["float32", "float64"]
self.device = "custom_cpu"
# config seed
SEED = 2021
paddle.seed(SEED)
paddle.framework.random._manual_program_seed(SEED)
def tearDown(self):
self.temp_dir.cleanup()
del os.environ['CUSTOM_DEVICE_ROOT']
def test_custom_device(self):
self._test_static()
self._test_dynamic()
self._test_double_grad_dynamic()
self._test_with_dataloader()
self._test_stream()
def _test_static(self):
for dtype in self.dtypes:
x = np.random.uniform(-1, 1, [4, 8]).astype(dtype)
out = custom_relu_static(self.custom_op, self.device, dtype, x)
pd_out = custom_relu_static(
self.custom_op, self.device, dtype, x, False
)
np.testing.assert_array_equal(
out,
pd_out,
err_msg=f"custom op out: {out},\n paddle api out: {pd_out}",
)
def _test_dynamic(self):
for dtype in self.dtypes:
x = np.random.uniform(-1, 1, [4, 8]).astype(dtype)
out, x_grad = custom_relu_dynamic(
self.custom_op, self.device, dtype, x
)
pd_out, pd_x_grad = custom_relu_dynamic(
self.custom_op, self.device, dtype, x, False
)
np.testing.assert_array_equal(
out,
pd_out,
err_msg=f"custom op out: {out},\n paddle api out: {pd_out}",
)
np.testing.assert_array_equal(
x_grad,
pd_x_grad,
err_msg=f"custom op x grad: {x_grad},\n paddle api x grad: {pd_x_grad}",
)
def _test_double_grad_dynamic(self):
for dtype in self.dtypes:
x = np.random.uniform(-1, 1, [4, 8]).astype(dtype)
out, dx_grad = custom_relu_double_grad_dynamic(
self.custom_op, self.device, dtype, x
)
pd_out, pd_dx_grad = custom_relu_double_grad_dynamic(
self.custom_op, self.device, dtype, x, False
)
np.testing.assert_array_equal(
out,
pd_out,
err_msg=f"custom op out: {out},\n paddle api out: {pd_out}",
)
np.testing.assert_array_equal(
dx_grad,
pd_dx_grad,
err_msg=f"custom op dx grad: {dx_grad},\n paddle api dx grad: {pd_dx_grad}",
)
def _test_with_dataloader(self):
import paddle
from paddle.vision.transforms import Compose, Normalize
paddle.set_device(self.device)
# data loader
transform = Compose(
[Normalize(mean=[127.5], std=[127.5], data_format="CHW")]
)
train_dataset = paddle.vision.datasets.MNIST(
mode="train", transform=transform
)
train_loader = paddle.io.DataLoader(
train_dataset,
batch_size=64,
shuffle=True,
drop_last=True,
num_workers=0,
)
for batch_id, (image, _) in enumerate(train_loader()):
out = self.custom_op(image)
pd_out = paddle.nn.functional.relu(image)
np.testing.assert_array_equal(
out,
pd_out,
err_msg=f"custom op out: {out},\n paddle api out: {pd_out}",
)
if batch_id == 5:
break
def _test_stream(self):
import paddle
paddle.set_device(self.device)
x = paddle.ones([2, 2], dtype='float32')
out = self.custom_stream_op(x)
np.testing.assert_array_equal(x.numpy(), out.numpy())
if __name__ == "__main__":
if os.name == 'nt' or sys.platform.startswith('darwin'):
# only support Linux now
sys.exit()
unittest.main()