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

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Python
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# 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
import numpy as np
class TestCustomCPUPlugin(unittest.TestCase):
def setUp(self):
# compile so and set to current path
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'.format(
self.temp_dir.name,
os.getenv('PLUGIN_URL'),
os.getenv('PLUGIN_TAG'),
sys.executable,
)
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(
cur_dir,
f'{self.temp_dir.name}/PaddleCustomDevice/backends/custom_cpu/build',
)
def tearDown(self):
self.temp_dir.cleanup()
del os.environ['CUSTOM_DEVICE_ROOT']
def test_custom_device(self):
self._test_custom_device_dataloader()
self._test_custom_device_mnist()
self._test_eager_backward_api()
self._test_eager_copy_to()
self._test_fallback_kernel()
self._test_scalar()
self._test_custom_device_py_api()
self._test_custom_device_mix_precision()
def _test_custom_device_dataloader(self):
import paddle
paddle.set_device('custom_cpu')
dataset = paddle.vision.datasets.MNIST(
mode='test',
transform=paddle.vision.transforms.Compose(
[
paddle.vision.transforms.CenterCrop(20),
paddle.vision.transforms.RandomResizedCrop(14),
paddle.vision.transforms.Normalize(),
paddle.vision.transforms.ToTensor(),
]
),
)
loader = paddle.io.DataLoader(
dataset, batch_size=32, num_workers=1, shuffle=True
)
for image, label in loader:
self.assertTrue(image.place.is_custom_place())
self.assertTrue(label.place.is_custom_place())
break
def _test_custom_device_mnist(self):
import paddle
class MNIST(paddle.nn.Layer):
def __init__(self):
super().__init__()
self.shape = 1 * 28 * 28
self.size = 10
self.output_weight = self.create_parameter(
[self.shape, self.size]
)
self.accuracy = paddle.metric.Accuracy()
def forward(self, inputs, label=None):
x = paddle.reshape(inputs, shape=[-1, self.shape])
x = paddle.matmul(x, self.output_weight)
x = paddle.nn.functional.softmax(x)
if label is not None:
self.accuracy.reset()
correct = self.accuracy.compute(x, label)
self.accuracy.update(correct)
acc = self.accuracy.accumulate()
return x, acc
else:
return x
paddle.set_device('custom_cpu')
dataset = paddle.vision.datasets.MNIST(
mode='train',
transform=paddle.vision.transforms.Compose(
[paddle.vision.transforms.ToTensor()]
),
)
loader = paddle.io.DataLoader(
dataset, batch_size=64, num_workers=1, shuffle=True
)
mnist = MNIST()
sgd = paddle.optimizer.SGD(
learning_rate=0.01, parameters=mnist.parameters()
)
data = next(loader())
img = data[0]
label = data[1]
label_int32 = paddle.cast(label, 'int32')
pred, acc = mnist(img, label_int32)
avg_loss = paddle.nn.functional.cross_entropy(pred, label_int32)
avg_loss.backward()
sgd.step()
sgd.clear_grad()
self.assertTrue(pred.place.is_custom_place())
def _test_eager_backward_api(self):
x = np.random.random([2, 2]).astype("float32")
y = np.random.random([2, 2]).astype("float32")
grad = np.ones([2, 2]).astype("float32")
import paddle
paddle.set_device('custom_cpu')
paddle.device.get_available_device()
x_tensor = paddle.to_tensor(x, stop_gradient=False)
y_tensor = paddle.to_tensor(y)
z1_tensor = paddle.matmul(x_tensor, y_tensor)
z2_tensor = paddle.matmul(x_tensor, y_tensor)
grad_tensor = paddle.to_tensor(grad)
paddle.autograd.backward([z1_tensor, z2_tensor], [grad_tensor, None])
self.assertTrue(x_tensor.grad.place.is_custom_place())
def _test_eager_copy_to(self):
import paddle
x = np.random.random([2, 2]).astype("float32")
# cpu -> custom
cpu_tensor = paddle.to_tensor(
x, dtype='float32', place=paddle.CPUPlace()
)
custom_cpu_tensor = cpu_tensor._copy_to(
paddle.CustomPlace('custom_cpu', 0), True
)
np.testing.assert_array_equal(custom_cpu_tensor, x)
self.assertTrue(custom_cpu_tensor.place.is_custom_place())
# custom -> custom
another_custom_cpu_tensor = custom_cpu_tensor._copy_to(
paddle.CustomPlace('custom_cpu', 0), True
)
np.testing.assert_array_equal(another_custom_cpu_tensor, x)
self.assertTrue(another_custom_cpu_tensor.place.is_custom_place())
# custom -> cpu
another_cpu_tensor = custom_cpu_tensor._copy_to(paddle.CPUPlace(), True)
np.testing.assert_array_equal(another_cpu_tensor, x)
self.assertTrue(another_cpu_tensor.place.is_cpu_place())
# custom -> custom self
another_custom_cpu_tensor = another_custom_cpu_tensor._copy_to(
paddle.CustomPlace('custom_cpu', 0), True
)
np.testing.assert_array_equal(another_custom_cpu_tensor, x)
self.assertTrue(another_custom_cpu_tensor.place.is_custom_place())
def _test_fallback_kernel(self):
# using (custom_cpu, add, int16) which is not registered
import paddle
r = np.array([6, 6, 6], 'int16')
x = paddle.to_tensor([5, 4, 3], 'int16')
y = paddle.to_tensor([1, 2, 3], 'int16')
z = paddle.add(x, y)
np.testing.assert_array_equal(z, r)
def _test_scalar(self):
import paddle
data_1 = paddle.to_tensor(
[[[[1.0, 4.0, 5.0, 7.0], [3.0, 4.0, 5.0, 6.0]]]]
)
k_t = paddle.to_tensor([3], dtype="int32")
value_1, indices_1 = paddle.topk(data_1, k=k_t)
def _test_custom_device_gradient_accumulation(self):
import paddle
class MNIST(paddle.nn.Layer):
def __init__(self):
super().__init__()
self.shape = 1 * 28 * 28
self.size = 10
self.output_weight = self.create_parameter(
[self.shape, self.size]
)
self.accuracy = paddle.metric.Accuracy()
def forward(self, inputs, label=None):
x = paddle.reshape(inputs, shape=[-1, self.shape])
x = paddle.matmul(x, self.output_weight)
x = paddle.nn.functional.softmax(x)
if label is not None:
self.accuracy.reset()
correct = self.accuracy.compute(x, label)
self.accuracy.update(correct)
acc = self.accuracy.accumulate()
return x, acc
else:
return x
paddle.set_device('custom_cpu')
dataset = paddle.vision.datasets.MNIST(
mode='train',
transform=paddle.vision.transforms.Compose(
[paddle.vision.transforms.ToTensor()]
),
)
loader = paddle.io.DataLoader(
dataset, batch_size=64, num_workers=1, shuffle=True
)
mnist = MNIST()
sgd = paddle.optimizer.SGD(
learning_rate=0.01, parameters=mnist.parameters()
)
data = next(loader())
img = data[0]
label = data[1]
label_int32 = paddle.cast(label, 'int32')
pred, acc = mnist(img, label_int32)
avg_loss = paddle.nn.functional.cross_entropy(pred, label_int32)
avg_loss.backward(retain_graph=True)
avg_loss = paddle.nn.functional.cross_entropy(pred, label_int32)
avg_loss.backward()
sgd.step()
def _test_custom_device_mix_precision(self):
import tempfile
import paddle
from paddle.inference import (
PlaceType,
PrecisionType,
convert_to_mixed_precision,
)
from paddle.jit import to_static
from paddle.static import InputSpec
from paddle.vision.models import resnet50
self.temp_dir = tempfile.TemporaryDirectory()
model = resnet50(True)
net = to_static(
model,
input_spec=[InputSpec(shape=[None, 3, 224, 224], name='x')],
full_graph=True,
)
paddle.jit.save(
net, os.path.join(self.temp_dir.name, 'resnet50/inference')
)
if paddle.framework.use_pir_api():
return
convert_to_mixed_precision(
os.path.join(self.temp_dir.name, 'resnet50/inference.pdmodel'),
os.path.join(self.temp_dir.name, 'resnet50/inference.pdiparams'),
os.path.join(
self.temp_dir.name, 'mixed_precision/inference.pdmodel'
),
os.path.join(
self.temp_dir.name, 'mixed_precision/inference.pdiparams'
),
backend=PlaceType.CUSTOM,
mixed_precision=PrecisionType.Half,
)
self.temp_dir.cleanup()
def _test_custom_device_py_api(self):
import paddle
p = paddle.set_device('custom_cpu')
paddle.device.synchronize('custom_cpu')
s1 = paddle.device.Stream()
s2 = paddle.device.Stream(p)
s1 = paddle.device.current_stream()
s2 = paddle.device.current_stream(p)
e1 = paddle.device.Event()
e2 = paddle.device.Event(p)
s = paddle.device.Stream()
e = paddle.device.Event()
s.query()
s.synchronize()
s.wait_event(e)
s.record_event(e)
s.wait_stream(s)
paddle.device.set_stream(s)
e.query()
e.synchronize()
e.record(s)
if __name__ == '__main__':
if os.name == 'nt' or sys.platform.startswith('darwin'):
# only support Linux now
sys.exit()
unittest.main()