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

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Python

# Copyright (c) 2023 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
def ref_pdist(x, p=2.0):
dist = np.linalg.norm(x[..., None, :] - x[None, :, :], ord=p, axis=-1)
res = []
rows, cols = dist.shape
for i in range(rows):
for j in range(cols):
if i >= j:
continue
res.append(dist[i][j])
return np.array(res)
class TestPdistAPI(unittest.TestCase):
def setUp(self):
self.x = np.random.rand(10, 20).astype('float32')
self.p = 2.0
self.init_input()
self.place = get_device_place()
def init_input(self):
pass
def test_static_api(self):
paddle.enable_static()
with paddle.static.program_guard(paddle.static.Program()):
x = paddle.static.data('x', self.x.shape, dtype=self.x.dtype)
out = paddle.pdist(
x,
self.p,
)
exe = paddle.static.Executor(self.place)
res = exe.run(feed={'x': self.x}, fetch_list=[out])
out_ref = ref_pdist(self.x, self.p)
np.testing.assert_allclose(out_ref, res[0], rtol=1e-5, atol=1e-5)
def test_dygraph_api(self):
paddle.disable_static(self.place)
x = paddle.to_tensor(self.x)
out = paddle.pdist(
x,
self.p,
)
out_ref = ref_pdist(self.x, self.p)
np.testing.assert_allclose(out_ref, out.numpy(), rtol=1e-5, atol=1e-5)
paddle.enable_static()
class TestPdistAPICase1_param_p1(TestPdistAPI):
def init_input(self):
self.p = 0
class TestPdistAPICase2_param_p2(TestPdistAPI):
def init_input(self):
self.p = 1.0
class TestPdistAPICase3_param_p3(TestPdistAPI):
def init_input(self):
self.p = 3.0
class TestPdistAPICase4_param_p4(TestPdistAPI):
def init_input(self):
self.p = 1.5
class TestPdistAPICase5_param_p5(TestPdistAPI):
def init_input(self):
self.p = 2.5
class TestPdistAPICase6_param_p6(TestPdistAPI):
def init_input(self):
self.p = float('inf')
class TestPdistAPICase7_input_x1(TestPdistAPI):
def init_input(self):
self.x = np.random.rand(50, 20).astype('float64')
class TestPdistShapeError(unittest.TestCase):
def test_error(self):
with self.assertRaises(AssertionError):
self.x = np.random.rand(50, 10, 20).astype('float64')
self.p = 2.0
x = paddle.to_tensor(self.x)
out0 = paddle.pdist(
x,
self.p,
)
class TestPdistAPI_ZeroSize(unittest.TestCase):
def setUp(self):
self.init_shape()
self.x = np.random.rand(*self.shape).astype('float32')
self.p = 2.0
self.place = get_device_place()
def init_shape(self):
self.shape = (0, 20)
def test_dygraph_api(self):
paddle.disable_static(self.place)
x = paddle.to_tensor(self.x)
x.stop_gradient = False
out = paddle.pdist(
x,
self.p,
)
out_ref = ref_pdist(self.x, self.p)
np.testing.assert_allclose(out_ref, out.numpy(), rtol=1e-5, atol=1e-5)
loss = paddle.sum(out)
loss.backward()
np.testing.assert_allclose(x.grad.shape, x.shape)
paddle.enable_static()
class TestPdistAPI_ZeroSize2(TestPdistAPI_ZeroSize):
def init_shape(self):
self.shape = (0, 0)
if __name__ == '__main__':
paddle.enable_static()
unittest.main()