delete data_balance unittest

test=develop

python/paddle/fluid/tests/unittests/test_data_balance.py

-# Copyright (c) 2018 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 unittest
-import paddle.fluid as fluid
-import paddle
-import numpy as np
-
-
-class TestDataBalance(unittest.TestCase):
-    def prepare_data(self):
-        def fake_data_generator():
-            for n in range(self.total_ins_num):
-                yield np.ones((3, 4)) * n, n
-
-        # Prepare data
-        with fluid.program_guard(fluid.Program(), fluid.Program()):
-            reader = paddle.batch(
-                fake_data_generator, batch_size=self.batch_size)
-            feeder = fluid.DataFeeder(
-                feed_list=[
-                    fluid.layers.data(
-                        name='image', shape=[3, 4], dtype='float32'),
-                    fluid.layers.data(
-                        name='label', shape=[1], dtype='int64'),
-                ],
-                place=fluid.CPUPlace())
-            self.num_batches = fluid.recordio_writer.convert_reader_to_recordio_file(
-                self.data_file_name, reader, feeder)
-
-    def prepare_lod_data(self):
-        def fake_data_generator():
-            for n in range(1, self.total_ins_num + 1):
-                d1 = (np.ones((n, 3)) * n).astype('float32')
-                d2 = (np.array(n).reshape((1, 1))).astype('int32')
-                yield d1, d2
-
-        # Prepare lod data
-        with fluid.program_guard(fluid.Program(), fluid.Program()):
-            with fluid.recordio_writer.create_recordio_writer(
-                    filename=self.lod_data_file_name) as writer:
-                eof = False
-                generator = fake_data_generator()
-                while (not eof):
-                    data_batch = [
-                        np.array([]).reshape((0, 3)), np.array([]).reshape(
-                            (0, 1))
-                    ]
-                    lod = [0]
-                    for _ in range(self.batch_size):
-                        try:
-                            ins = next(generator)
-                        except StopIteration:
-                            eof = True
-                            break
-                        for i, d in enumerate(ins):
-                            data_batch[i] = np.concatenate(
-                                (data_batch[i], d), axis=0)
-                        lod.append(lod[-1] + ins[0].shape[0])
-                    if data_batch[0].shape[0] > 0:
-                        for i, d in enumerate(data_batch):
-                            t = fluid.LoDTensor()
-                            t.set(data_batch[i], fluid.CPUPlace())
-                            if i == 0:
-                                t.set_lod([lod])
-                            writer.append_tensor(t)
-                        writer.complete_append_tensor()
-
-    def setUp(self):
-        self.use_cuda = fluid.core.is_compiled_with_cuda()
-        self.data_file_name = './data_balance_test.recordio'
-        self.lod_data_file_name = './data_balance_with_lod_test.recordio'
-        self.total_ins_num = 50
-        self.batch_size = 12
-        self.prepare_data()
-        self.prepare_lod_data()
-
-    def main(self):
-        main_prog = fluid.Program()
-        startup_prog = fluid.Program()
-        with fluid.program_guard(main_prog, startup_prog):
-            data_reader = fluid.layers.io.open_files(
-                filenames=[self.data_file_name],
-                shapes=[[-1, 3, 4], [-1, 1]],
-                lod_levels=[0, 0],
-                dtypes=['float32', 'int64'])
-            if self.use_cuda:
-                data_reader = fluid.layers.double_buffer(data_reader)
-            image, label = fluid.layers.read_file(data_reader)
-
-            place = fluid.CUDAPlace(0) if self.use_cuda else fluid.CPUPlace()
-            exe = fluid.Executor(place)
-            exe.run(startup_prog)
-
-            build_strategy = fluid.BuildStrategy()
-            build_strategy.enable_data_balance = True
-            parallel_exe = fluid.ParallelExecutor(
-                use_cuda=self.use_cuda,
-                main_program=main_prog,
-                build_strategy=build_strategy)
-
-            if (parallel_exe.device_count > self.batch_size):
-                print("WARNING: Unittest TestDataBalance skipped. \
-                    For the result is not correct when device count \
-                    is larger than batch size.")
-                return
-            fetch_list = [image.name, label.name]
-
-            data_appeared = [False] * self.total_ins_num
-            while (True):
-                try:
-                    image_val, label_val = parallel_exe.run(fetch_list,
-                                                            return_numpy=True)
-                except fluid.core.EOFException:
-                    break
-                ins_num = image_val.shape[0]
-                broadcasted_label = np.ones(
-                    (ins_num, 3, 4)) * label_val.reshape((ins_num, 1, 1))
-                self.assertEqual(image_val.all(), broadcasted_label.all())
-                for l in label_val:
-                    self.assertFalse(data_appeared[l[0]])
-                    data_appeared[l[0]] = True
-            for i in data_appeared:
-                self.assertTrue(i)
-
-    def main_lod(self):
-        main_prog = fluid.Program()
-        startup_prog = fluid.Program()
-        with fluid.program_guard(main_prog, startup_prog):
-            data_reader = fluid.layers.io.open_files(
-                filenames=[self.lod_data_file_name],
-                shapes=[[-1, 3], [-1, 1]],
-                lod_levels=[1, 0],
-                dtypes=['float32', 'int32'])
-            ins, label = fluid.layers.read_file(data_reader)
-
-            place = fluid.CUDAPlace(0) if self.use_cuda else fluid.CPUPlace()
-            exe = fluid.Executor(place)
-            exe.run(startup_prog)
-            build_strategy = fluid.BuildStrategy()
-            build_strategy.enable_data_balance = True
-            parallel_exe = fluid.ParallelExecutor(
-                use_cuda=self.use_cuda,
-                main_program=main_prog,
-                build_strategy=build_strategy)
-
-            if parallel_exe.device_count > self.batch_size:
-                print("WARNING: Unittest TestDataBalance skipped. \
-                    For the result is not correct when device count \
-                    is larger than batch size.")
-                exit(0)
-            fetch_list = [ins.name, label.name]
-
-            data_appeared = [False] * self.total_ins_num
-            while (True):
-                try:
-                    ins_tensor, label_tensor = parallel_exe.run(
-                        fetch_list, return_numpy=False)
-                except fluid.core.EOFException:
-                    break
-
-                ins_val = np.array(ins_tensor)
-                label_val = np.array(label_tensor)
-                ins_lod = ins_tensor.lod()[0]
-                self.assertEqual(ins_val.shape[1], 3)
-                self.assertEqual(label_val.shape[1], 1)
-                self.assertEqual(len(ins_lod) - 1, label_val.shape[0])
-                for i in range(0, len(ins_lod) - 1):
-                    ins_elem = ins_val[ins_lod[i]:ins_lod[i + 1]][:]
-                    label_elem = label_val[i][0]
-                    self.assertEqual(ins_elem.all(), label_elem.all())
-                    self.assertFalse(data_appeared[int(label_elem - 1)])
-                    data_appeared[int(label_elem - 1)] = True
-
-            for i in data_appeared:
-                self.assertTrue(i)
-
-    def test_all(self):
-        self.main()
-        self.main_lod()
-
-
-if __name__ == '__main__':
-    unittest.main()