未验证 提交 5f8ff63b 编写于 作者: F fengjiayi 提交者: GitHub

Merge pull request #12069 from JiayiFeng/add_reader_reset_tests

add unittests for Reader ResetAll
# 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.
import paddle.fluid as fluid
import paddle.v2 as paddle
import numpy as np
import unittest
class TestReaderReset(unittest.TestCase):
def prepare_data(self):
def fake_data_generator():
for n in xrange(self.total_ins_num):
yield np.ones(self.ins_shape) * n, n
# Prepare data
with fluid.program_guard(fluid.Program(), fluid.Program()):
reader = paddle.batch(fake_data_generator, batch_size=1)
feeder = fluid.DataFeeder(
feed_list=[
fluid.layers.data(
name='data', shape=[3], dtype='float32'),
fluid.layers.data(
name='label', shape=[1], dtype='int64'),
],
place=fluid.CPUPlace())
fluid.recordio_writer.convert_reader_to_recordio_file(
self.data_file_name, reader, feeder)
def setUp(self):
self.use_cuda = fluid.core.is_compiled_with_cuda()
self.data_file_name = './reader_reset_test.recordio'
self.ins_shape = [3]
self.batch_size = 5
self.total_ins_num = self.batch_size * 20
self.test_pass_num = 100
self.prepare_data()
def main(self, with_double_buffer):
main_prog = fluid.Program()
startup_prog = fluid.Program()
with fluid.program_guard(main_prog, startup_prog):
data_reader_handle = fluid.layers.io.open_files(
filenames=[self.data_file_name],
shapes=[[-1] + self.ins_shape, [-1, 1]],
lod_levels=[0, 0],
dtypes=['float32', 'int64'],
thread_num=1,
pass_num=1)
data_reader = fluid.layers.io.batch(data_reader_handle,
self.batch_size)
if with_double_buffer:
data_reader = fluid.layers.double_buffer(data_reader)
image, label = fluid.layers.read_file(data_reader)
fetch_list = [image.name, label.name]
place = fluid.CUDAPlace(0) if self.use_cuda else fluid.CPUPlace()
exe = fluid.Executor(place)
exe.run(startup_prog)
build_strategy = fluid.BuildStrategy()
if with_double_buffer:
build_strategy.enable_data_balance = True
exec_strategy = fluid.ExecutionStrategy()
parallel_exe = fluid.ParallelExecutor(
use_cuda=self.use_cuda,
main_program=main_prog,
build_strategy=build_strategy,
exec_strategy=exec_strategy)
data_appeared = [False] * self.total_ins_num
pass_count = 0
while (True):
try:
data_val, label_val = parallel_exe.run(fetch_list,
return_numpy=True)
ins_num = data_val.shape[0]
broadcasted_label = np.ones((ins_num, ) + tuple(
self.ins_shape)) * label_val.reshape((ins_num, 1))
self.assertEqual(data_val.all(), broadcasted_label.all())
for l in label_val:
self.assertFalse(data_appeared[l[0]])
data_appeared[l[0]] = True
except fluid.core.EOFException:
pass_count += 1
if with_double_buffer:
data_appeared = data_appeared[:-parallel_exe.device_count *
self.batch_size]
for i in data_appeared:
self.assertTrue(i)
if pass_count < self.test_pass_num:
data_appeared = [False] * self.total_ins_num
data_reader_handle.reset()
else:
break
def test_all(self):
self.main(with_double_buffer=False)
self.main(with_double_buffer=True)
if __name__ == '__main__':
unittest.main()
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