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Paddle/python/paddle/fluid/tests/unittests/test_logsumexp.py

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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.
from __future__ import print_function
import paddle
import paddle.fluid as fluid
import unittest
import numpy as np
from op_test import OpTest
from paddle.fluid import Program, program_guard
from paddle.fluid.layer_helper import LayerHelper
class TestLogSumOpError(unittest.TestCase):
def test_errors(self):
with program_guard(Program(), Program()):
x1 = fluid.layers.data(name='x1', shape=[120], dtype="uint8")
self.assertRaises(Exception, paddle.logsumexp, x1)
x2 = fluid.layers.data(name='x2', shape=[2, 3], dtype="int")
self.assertRaises(Exception, paddle.logsumexp, x2)
x3 = fluid.layers.data(name='x3', shape=[3], dtype="float16")
self.assertRaises(Exception, paddle.logsumexp, x3)
self.assertRaises(AssertionError, paddle.logsumexp, None)
class TestLogSumExpOp(unittest.TestCase):
def test_dygraph(self):
with fluid.dygraph.guard():
np_x = np.random.uniform(0.1, 1, [123]).astype(np.float32)
x = fluid.dygraph.to_variable(np_x)
self.assertTrue(
np.allclose(
paddle.logsumexp(x).numpy(), np.log(np.sum(np.exp(np_x)))))
np_x = np.random.uniform(0.1, 1, [2, 3, 4]).astype(np.float32)
x = fluid.dygraph.to_variable(np_x)
self.assertTrue(
np.allclose(
paddle.logsumexp(
x, dim=[1, 2]).numpy(),
np.log(np.sum(np.exp(np_x), axis=(1, 2)))))
np_x = np.random.uniform(0.1, 1, [2, 3, 4]).astype(np.float32)
x = fluid.dygraph.to_variable(np_x)
self.assertTrue(
np.allclose(
paddle.logsumexp(
x, dim=[2]).numpy(),
np.log(np.sum(np.exp(np_x), axis=(2)))))
np_x = np.random.uniform(0.1, 1, [2, 3, 4]).astype(np.float32)
x = fluid.dygraph.to_variable(np_x)
self.assertTrue(
np.allclose(
paddle.logsumexp(
x, keepdim=True).numpy(),
np.log(np.sum(np.exp(np_x), keepdims=True))))
if __name__ == '__main__':
unittest.main()