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# Copyright 2018 The TensorFlow 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.
# ==============================================================================
"""Tests for cross_tower_utils."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from absl.testing import parameterized
from tensorflow.contrib.distribute.python import combinations
from tensorflow.contrib.distribute.python import cross_tower_utils
from tensorflow.contrib.distribute.python import values as value_lib
from tensorflow.python.eager import test
from tensorflow.python.framework import constant_op
from tensorflow.python.framework import ops
from tensorflow.python.framework import test_util
from tensorflow.python.ops import math_ops
from tensorflow.python.training import device_util
class IndexedSlicesUtilsTest(test.TestCase, parameterized.TestCase):
def _assert_values_equal(self, left, right):
self.assertAllEqual(
self.evaluate(ops.convert_to_tensor(left)),
self.evaluate(ops.convert_to_tensor(right)))
@test_util.run_in_graph_and_eager_modes
def testAggregateTensors(self):
t0 = constant_op.constant([[1., 2.], [0, 0], [3., 4.]])
t1 = constant_op.constant([[0., 0.], [5, 6], [7., 8.]])
total = constant_op.constant([[1., 2.], [5, 6], [10., 12.]])
result = cross_tower_utils.aggregate_tensors_or_indexed_slices([t0, t1])
self._assert_values_equal(total, result)
@test_util.run_in_graph_and_eager_modes
def testAggregateIndexedSlices(self):
t0 = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
t1 = math_ops._as_indexed_slices(
constant_op.constant([[0., 0.], [5, 6], [7., 8.]]))
total = constant_op.constant([[1., 2.], [5, 6], [10., 12.]])
result = cross_tower_utils.aggregate_tensors_or_indexed_slices([t0, t1])
self.assertIsInstance(result, ops.IndexedSlices)
self._assert_values_equal(total, result)
@test_util.run_in_graph_and_eager_modes
def testDivideTensor(self):
t = constant_op.constant([[1., 2.], [0, 0], [3., 4.]])
n = 2
expected = constant_op.constant([[0.5, 1.], [0, 0], [1.5, 2.]])
result = cross_tower_utils.divide_by_n_tensors_or_indexed_slices(t, n)
self._assert_values_equal(expected, result)
@test_util.run_in_graph_and_eager_modes
def testDivideIndexedSlices(self):
t = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
n = 2
expected = constant_op.constant([[0.5, 1.], [0, 0], [1.5, 2.]])
result = cross_tower_utils.divide_by_n_tensors_or_indexed_slices(t, n)
self.assertIsInstance(result, ops.IndexedSlices)
self._assert_values_equal(expected, result)
@test_util.run_in_graph_and_eager_modes
def testIsIndexedSlices(self):
t = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
self.assertTrue(cross_tower_utils.contains_indexed_slices(t))
@test_util.run_in_graph_and_eager_modes
def testContainsIndexedSlices_List(self):
t0 = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
t1 = math_ops._as_indexed_slices(
constant_op.constant([[0., 0.], [5, 6], [7., 8.]]))
self.assertTrue(cross_tower_utils.contains_indexed_slices([t0, t1]))
@test_util.run_in_graph_and_eager_modes
def testContainsIndexedSlices_Tuple(self):
t0 = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
t1 = math_ops._as_indexed_slices(
constant_op.constant([[0., 0.], [5, 6], [7., 8.]]))
self.assertTrue(cross_tower_utils.contains_indexed_slices((t0, t1)))
@test_util.run_in_graph_and_eager_modes
def testContainsIndexedSlices_PerDevice(self):
t0 = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
t1 = math_ops._as_indexed_slices(
constant_op.constant([[0., 0.], [5, 6], [7., 8.]]))
per_device = value_lib.PerDevice({"/gpu:0": t0, "/cpu:0": t1})
self.assertTrue(cross_tower_utils.contains_indexed_slices(per_device))
@test_util.run_in_graph_and_eager_modes
def testContainsIndexedSlices_PerDeviceMapOutput(self):
t0 = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
t1 = math_ops._as_indexed_slices(
constant_op.constant([[0., 0.], [5, 6], [7., 8.]]))
per_device = value_lib.PerDevice({
"/gpu:0": value_lib.MapOutput([t0]),
"/cpu:0": value_lib.MapOutput([t1])})
self.assertTrue(cross_tower_utils.contains_indexed_slices(per_device))
@combinations.generate(combinations.combine(
mode=["graph", "eager"],
required_gpus=1))
def testCopyTensor(self):
with ops.device("/cpu:0"):
t = constant_op.constant([[1., 2.], [0, 0], [3., 4.]])
destination = "/gpu:0"
result = cross_tower_utils.copy_tensor_or_indexed_slices_to_device(
t, destination)
self._assert_values_equal(t, result)
self.assertEqual(device_util.resolve(destination),
device_util.resolve(result.device))
@combinations.generate(combinations.combine(
mode=["graph", "eager"],
required_gpus=1))
def testCopyIndexedSlices(self):
with ops.device("/cpu:0"):
t = math_ops._as_indexed_slices(
constant_op.constant([[1., 2.], [0, 0], [3., 4.]]))
destination = "/gpu:0"
result = cross_tower_utils.copy_tensor_or_indexed_slices_to_device(
t, destination)
self.assertIsInstance(result, ops.IndexedSlices)
self._assert_values_equal(t, result)
self.assertEqual(device_util.resolve(destination),
device_util.resolve(result.device))
if __name__ == "__main__":
test.main()
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