# 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 import paddle import paddle.fluid as fluid def np_pairwise_distance(x, y, p=2.0, epsilon=1e-6, keepdim=False): distance = np.linalg.norm(x - y + epsilon, ord=p, axis=-1, keepdims=keepdim) # Paddle currently has not supported for 0-d Tensors, so even if keep_dim is False, # and neither x nor y is batched, a Tensor of shape (1, ) is returned if distance.ndim == 0: distance = np.expand_dims(distance, axis=0) return distance def call_pairwise_distance_layer(x, y, p=2.0, epsilon=1e-6, keepdim='False'): pairwise_distance = paddle.nn.PairwiseDistance( p=p, epsilon=epsilon, keepdim=keepdim ) distance = pairwise_distance(x=x, y=y) return distance def call_pairwise_distance_functional( x, y, p=2.0, epsilon=1e-6, keepdim='False' ): distance = paddle.nn.functional.pairwise_distance( x=x, y=y, p=p, epsilon=epsilon, keepdim=keepdim ) return distance def test_static( place, x_np, y_np, p=2.0, epsilon=1e-6, keepdim=False, functional=False ): prog = paddle.static.Program() startup_prog = paddle.static.Program() place = ( fluid.CUDAPlace(0) if paddle.fluid.core.is_compiled_with_cuda() else fluid.CPUPlace() ) paddle.enable_static() with paddle.static.program_guard(prog, startup_prog): x = paddle.fluid.data(name='x', shape=x_np.shape, dtype=x_np.dtype) y = paddle.fluid.data(name='y', shape=y_np.shape, dtype=x_np.dtype) if functional: distance = call_pairwise_distance_functional( x=x, y=y, p=p, epsilon=epsilon, keepdim=keepdim ) else: distance = call_pairwise_distance_layer( x=x, y=y, p=p, epsilon=epsilon, keepdim=keepdim ) exe = paddle.static.Executor(place) static_ret = exe.run( prog, feed={'x': x_np, 'y': y_np}, fetch_list=[distance] ) static_ret = static_ret[0] paddle.disable_static() return static_ret def test_dygraph( place, x_np, y_np, p=2.0, epsilon=1e-6, keepdim=False, functional=False ): x = paddle.to_tensor(x_np) y = paddle.to_tensor(y_np) if functional: dy_distance = call_pairwise_distance_functional( x=x, y=y, p=p, epsilon=epsilon, keepdim=keepdim ) else: dy_distance = call_pairwise_distance_layer( x=x, y=y, p=p, epsilon=epsilon, keepdim=keepdim ) dygraph_ret = dy_distance.numpy() return dygraph_ret class TestPairwiseDistance(unittest.TestCase): def test_pairwise_distance(self): epsilon = 1e-6 all_shape = [[5], [100, 100]] dtypes = ['float32', 'float64'] p_list = [-1, 0, 1, 2, np.inf, -np.inf] places = [paddle.CPUPlace()] if paddle.device.is_compiled_with_cuda(): places.append(paddle.CUDAPlace(0)) keeps = [False, True] for place in places: for shape in all_shape: for dtype in dtypes: for p in p_list: for keepdim in keeps: x_np = np.random.random(shape).astype(dtype) y_np = np.random.random(shape).astype(dtype) static_ret = test_static( place, x_np, y_np, p, epsilon=epsilon, keepdim=keepdim, ) dygraph_ret = test_dygraph( place, x_np, y_np, p, epsilon=epsilon, keepdim=keepdim, ) excepted_value = np_pairwise_distance( x_np, y_np, p, epsilon=epsilon, keepdim=keepdim ) self.assertEqual( static_ret.shape, excepted_value.shape ) self.assertEqual( dygraph_ret.shape, excepted_value.shape ) np.testing.assert_allclose( static_ret, excepted_value, rtol=1e-05 ) np.testing.assert_allclose( dygraph_ret, excepted_value, rtol=1e-05 ) static_functional_ret = test_static( place, x_np, y_np, p, epsilon=epsilon, keepdim=keepdim, ) dygraph_functional_ret = test_dygraph( place, x_np, y_np, p, epsilon=epsilon, keepdim=keepdim, ) self.assertEqual( static_functional_ret.shape, excepted_value.shape, ) self.assertEqual( dygraph_functional_ret.shape, excepted_value.shape, ) np.testing.assert_allclose( static_functional_ret, excepted_value, rtol=1e-05, ) np.testing.assert_allclose( dygraph_functional_ret, excepted_value, rtol=1e-05, ) def test_pairwise_distance_broadcast_1(self): shape_x = [100, 100] shape_y = [100, 1] epsilon = 1e-6 keepdim = False place = paddle.CPUPlace() x_np = np.random.random(shape_x).astype('float32') y_np = np.random.random(shape_y).astype('float32') static_ret = test_static( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim ) dygraph_ret = test_dygraph( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim ) excepted_value = np_pairwise_distance( x_np, y_np, epsilon=epsilon, keepdim=keepdim ) self.assertEqual(static_ret.shape, excepted_value.shape) self.assertEqual(dygraph_ret.shape, excepted_value.shape) np.testing.assert_allclose(static_ret, excepted_value, rtol=1e-05) np.testing.assert_allclose(dygraph_ret, excepted_value, rtol=1e-05) static_functional_ret = test_static( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim, functional=True, ) dygraph_functional_ret = test_dygraph( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim, functional=True, ) self.assertEqual(static_functional_ret.shape, excepted_value.shape) self.assertEqual(dygraph_functional_ret.shape, excepted_value.shape) np.testing.assert_allclose( static_functional_ret, excepted_value, rtol=1e-05 ) np.testing.assert_allclose( dygraph_functional_ret, excepted_value, rtol=1e-05 ) def test_pairwise_distance_broadcast_2(self): shape_x = [100, 100] shape_y = [100] epsilon = 1e-6 keepdim = False place = paddle.CPUPlace() x_np = np.random.random(shape_x).astype('float32') y_np = np.random.random(shape_y).astype('float32') static_ret = test_static( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim ) dygraph_ret = test_dygraph( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim ) excepted_value = np_pairwise_distance( x_np, y_np, epsilon=epsilon, keepdim=keepdim ) self.assertEqual(static_ret.shape, excepted_value.shape) self.assertEqual(dygraph_ret.shape, excepted_value.shape) np.testing.assert_allclose(static_ret, excepted_value, rtol=1e-05) np.testing.assert_allclose(dygraph_ret, excepted_value, rtol=1e-05) static_functional_ret = test_static( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim, functional=True, ) dygraph_functional_ret = test_dygraph( place=place, x_np=x_np, y_np=y_np, epsilon=epsilon, keepdim=keepdim, functional=True, ) self.assertEqual(static_functional_ret.shape, excepted_value.shape) self.assertEqual(dygraph_functional_ret.shape, excepted_value.shape) np.testing.assert_allclose( static_functional_ret, excepted_value, rtol=1e-05 ) np.testing.assert_allclose( dygraph_functional_ret, excepted_value, rtol=1e-05 ) if __name__ == "__main__": unittest.main()