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

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# 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 convert_float_to_uint16, convert_uint16_to_float
from op_test_xpu import XPUOpTest
import paddle
from paddle import _legacy_C_ops, base
from paddle.base import Program, program_guard
paddle.enable_static()
from get_test_cover_info import (
XPUOpTestWrapper,
create_test_class,
get_xpu_op_support_types,
)
class XPUTestDropoutOp(XPUOpTestWrapper):
def __init__(self):
self.op_name = 'dropout'
self.use_dynamic_create_class = False
class TestDropoutOp(XPUOpTest):
def setUp(self):
self.init_inputs_shape()
self.init_attrs()
self.dtype = self.in_type
self.op_type = 'dropout'
if self.dtype == np.uint16:
x = np.random.random(self.shape).astype('float32')
x = convert_float_to_uint16(x)
self.inputs = {'X': x}
else:
self.inputs = {
'X': np.random.random(self.shape).astype(self.dtype)
}
self.attrs = {
'dropout_prob': self.dropout_prob,
'fix_seed': self.fix_seed,
'is_test': self.is_test,
'dropout_implementation': self.dropout_implementation,
}
if self.dtype == np.uint16:
x_float32 = convert_uint16_to_float(self.inputs['X'])
out = x_float32 * (1.0 - self.dropout_prob)
out = convert_float_to_uint16(out)
else:
out = self.inputs['X'] * (1.0 - self.dropout_prob)
if not self.is_test:
mask = None
if self.dropout_prob == 0.0:
mask = np.ones(self.shape)
elif self.dropout_prob == 1.0:
mask = np.zeros(self.shape)
if self.dtype == np.uint16:
mask = convert_float_to_uint16(mask.astype('float32'))
else:
mask = mask.astype(self.dtype)
self.outputs = {'Out': out, 'Mask': mask}
else:
self.outputs = {'Out': out}
def init_inputs_shape(self):
self.shape = [32, 64]
def init_attrs(self):
self.__class__.no_need_check_grad = False
self.dropout_prob = 0.0
self.fix_seed = True
self.is_test = False
self.dropout_implementation = "upscale_in_train"
def test_check_output(self):
self.check_output()
def test_check_grad_normal(self):
if (
hasattr(self.__class__, "no_need_check_grad")
and self.__class__.no_need_check_grad
):
return
self.check_grad(['X'], 'Out')
class TestDropoutOpInput1d(TestDropoutOp):
def init_inputs_shape(self):
self.shape = [2000]
class TestDropoutOp2(TestDropoutOp):
def init_inputs_shape(self):
self.shape = [32, 64]
def init_attrs(self):
self.dropout_prob = 1.0
self.fix_seed = True
self.is_test = False
self.dropout_implementation = "upscale_in_train"
class TestDropoutOp3(TestDropoutOp):
def init_inputs_shape(self):
self.shape = [32, 64, 2]
class TestDropoutOp4(TestDropoutOp):
def init_attrs(self):
self.__class__.no_need_check_grad = True
self.dropout_prob = 0.35
self.fix_seed = True
self.is_test = True
self.dropout_implementation = "downgrade_in_infer"
class TestDropoutOp5(TestDropoutOp):
def init_inputs_shape(self):
self.shape = [32, 64, 3]
def init_attrs(self):
self.__class__.no_need_check_grad = True
self.dropout_prob = 0.75
self.fix_seed = True
self.is_test = True
self.dropout_implementation = "downgrade_in_infer"
class TestDropoutOpError(unittest.TestCase):
def test_errors(self):
with program_guard(Program(), Program()):
def test_Variable():
# the input of dropout must be Variable.
x1 = base.create_lod_tensor(
np.array([-1, 3, 5, 5]),
[[1, 1, 1, 1]],
base.CPUPlace(),
)
paddle.nn.functional.dropout(x1, p=0.5)
self.assertRaises(TypeError, test_Variable)
def test_dtype():
# the input dtype of dropout must be float16 or float32 or float64
# float16 only can be set on GPU place
x2 = paddle.static.data(
name='x2', shape=[-1, 3, 4, 5, 6], dtype="int32"
)
paddle.nn.functional.dropout(x2, p=0.5)
self.assertRaises(TypeError, test_dtype)
class TestDropoutCAPI(unittest.TestCase):
def setUp(self):
np.random.seed(123)
self.places = [base.CPUPlace()]
self.places.append(base.XPUPlace(0))
def test_dygraph(self):
for place in self.places:
with base.dygraph.guard(place):
input_np = np.random.random([40, 40]).astype(self.in_type)
result_np = input_np
input = paddle.to_tensor(input_np)
m = paddle.nn.Dropout(p=0.0)
m.eval()
result = m(input)
np.testing.assert_allclose(result.numpy(), result_np)
class TestDropoutBackward(unittest.TestCase):
def setUp(self):
np.random.seed(123)
self.places = [base.CPUPlace()]
self.places.append(base.XPUPlace(0))
def cal_grad_upscale_train(self, mask, prob):
if self.in_type == np.uint16:
return convert_float_to_uint16(
mask.astype("float32") / (1 - prob)
)
else:
return mask.astype(self.in_type) / (1 - prob)
def cal_grad_downscale_in_infer(self, mask):
if self.in_type == np.uint16:
return convert_float_to_uint16(mask.astype("float32"))
else:
return mask.astype(self.in_type)
def test_backward_downscale_in_infer(self):
for place in self.places:
with base.dygraph.guard(place):
prob = 0.1
if self.in_type == np.uint16:
input = paddle.uniform([100, 40], dtype="bfloat16")
else:
input = paddle.uniform([100, 40], dtype=self.in_type)
input.stop_gradient = False
out, mask = _legacy_C_ops.dropout(
input, 'dropout_prob', prob
)
nonzero = paddle.count_nonzero(out)
np.testing.assert_allclose(
prob, 1 - nonzero / 4000, atol=0.02
)
out.backward()
if self.in_type == np.uint16:
np.testing.assert_allclose(
input.gradient(),
self.cal_grad_downscale_in_infer(mask.numpy()),
)
else:
np.testing.assert_allclose(
input.gradient(),
self.cal_grad_downscale_in_infer(mask.numpy()),
)
def test_backward_upscale_train(self):
for place in self.places:
with base.dygraph.guard(place):
prob = 0.5
if self.in_type == np.uint16:
input = paddle.uniform([100, 40], dtype="bfloat16")
else:
input = paddle.uniform([100, 40], dtype=self.in_type)
input.stop_gradient = False
out, mask = _legacy_C_ops.dropout(
input,
'dropout_prob',
prob,
"dropout_implementation",
"upscale_in_train",
)
nonzero = paddle.count_nonzero(out)
np.testing.assert_allclose(
prob, 1 - nonzero / 4000, atol=0.02
)
out.backward()
np.testing.assert_allclose(
input.gradient(),
self.cal_grad_upscale_train(mask.numpy(), prob),
)
def test_backward_upscale_train_2(self):
for place in self.places:
with base.dygraph.guard(place):
prob = 0.2
if self.in_type == np.uint16:
input = paddle.uniform([100, 40], dtype="bfloat16")
else:
input = paddle.uniform([100, 40], dtype=self.in_type)
input.stop_gradient = False
out, mask = _legacy_C_ops.dropout(
input,
'dropout_prob',
prob,
"dropout_implementation",
"upscale_in_train",
)
nonzero = paddle.count_nonzero(out)
np.testing.assert_allclose(
prob, 1 - nonzero / 4000, atol=0.02
)
out.backward()
np.testing.assert_allclose(
input.gradient(),
self.cal_grad_upscale_train(mask.numpy(), prob),
)
support_types = get_xpu_op_support_types('dropout')
for stype in support_types:
create_test_class(globals(), XPUTestDropoutOp, stype)
if __name__ == '__main__':
unittest.main()