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device_spec_test.py
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# Copyright 2019 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 tensorflow.python.framework.device_spec."""
from absl.testing import parameterized
from tensorflow.python.framework import device_spec
from tensorflow.python.framework import test_util
from tensorflow.python.platform import googletest
TEST_V1_AND_V2 = (("v1", device_spec.DeviceSpecV1),
("v2", device_spec.DeviceSpecV2))
class DeviceSpecTest(test_util.TensorFlowTestCase, parameterized.TestCase):
@parameterized.named_parameters(*TEST_V1_AND_V2)
def test_empty(self, device_spec_type):
d = device_spec_type()
self.assertEqual("", d.to_string())
d.parse_from_string("")
self.assertEqual("", d.to_string())
@parameterized.named_parameters(*TEST_V1_AND_V2)
def test_constructor(self, device_spec_type):
d = device_spec_type(job="j", replica=0, task=1,
device_type="CPU", device_index=2)
self.assertEqual("j", d.job)
self.assertEqual(0, d.replica)
self.assertEqual(1, d.task)
self.assertEqual("CPU", d.device_type)
self.assertEqual(2, d.device_index)
self.assertEqual("/job:j/replica:0/task:1/device:CPU:2", d.to_string())
d = device_spec_type(device_type="GPU", device_index=0)
self.assertEqual("/device:GPU:0", d.to_string())
def testto_string_legacy(self):
"""DeviceSpecV1 allows direct mutation."""
d = device_spec.DeviceSpecV1()
d.job = "foo"
self.assertEqual("/job:foo", d.to_string())
d.task = 3
self.assertEqual("/job:foo/task:3", d.to_string())
d.device_type = "CPU"
d.device_index = 0
self.assertEqual("/job:foo/task:3/device:CPU:0", d.to_string())
d.task = None
d.replica = 12
self.assertEqual("/job:foo/replica:12/device:CPU:0", d.to_string())
d.device_type = "GPU"
d.device_index = 2
self.assertEqual("/job:foo/replica:12/device:GPU:2", d.to_string())
d.device_type = "CPU"
d.device_index = 1
self.assertEqual("/job:foo/replica:12/device:CPU:1", d.to_string())
d.device_type = None
d.device_index = None
self.assertEqual("/job:foo/replica:12", d.to_string())
# Test wildcard
d = device_spec.DeviceSpecV1(job="foo", replica=12, task=3,
device_type="GPU")
self.assertEqual("/job:foo/replica:12/task:3/device:GPU:*", d.to_string())
@parameterized.named_parameters(*TEST_V1_AND_V2)
def test_replace(self, device_spec_type):
d = device_spec_type()
d = d.replace(job="foo")
self.assertEqual("/job:foo", d.to_string())
d = d.replace(task=3)
self.assertEqual("/job:foo/task:3", d.to_string())
d = d.replace(device_type="CPU", device_index=0)
self.assertEqual("/job:foo/task:3/device:CPU:0", d.to_string())
d = d.replace(task=None, replica=12)
self.assertEqual("/job:foo/replica:12/device:CPU:0", d.to_string())
d = d.replace(device_type="GPU", device_index=2)
self.assertEqual("/job:foo/replica:12/device:GPU:2", d.to_string())
d = d.replace(device_type="CPU", device_index=1)
self.assertEqual("/job:foo/replica:12/device:CPU:1", d.to_string())
d = d.replace(device_type=None, device_index=None)
self.assertEqual("/job:foo/replica:12", d.to_string())
# Test wildcard
d = device_spec.DeviceSpecV1(job="foo", replica=12, task=3,
device_type="GPU")
self.assertEqual("/job:foo/replica:12/task:3/device:GPU:*", d.to_string())
@parameterized.named_parameters(*TEST_V1_AND_V2)
def testto_string(self, device_spec_type):
d = device_spec_type(job="foo")
self.assertEqual("/job:foo", d.to_string())
d = device_spec_type(job="foo", task=3)
self.assertEqual("/job:foo/task:3", d.to_string())
d = device_spec_type(job="foo", task=3, device_type="cpu", device_index=0)
self.assertEqual("/job:foo/task:3/device:CPU:0", d.to_string())
d = device_spec_type(job="foo", replica=12, device_type="cpu",
device_index=0)
self.assertEqual("/job:foo/replica:12/device:CPU:0", d.to_string())
d = device_spec_type(job="foo", replica=12, device_type="gpu",
device_index=2)
self.assertEqual("/job:foo/replica:12/device:GPU:2", d.to_string())
d = device_spec_type(job="foo", replica=12)
self.assertEqual("/job:foo/replica:12", d.to_string())
# Test wildcard
d = device_spec_type(job="foo", replica=12, task=3, device_type="GPU")
self.assertEqual("/job:foo/replica:12/task:3/device:GPU:*", d.to_string())
def test_parse_legacy(self):
d = device_spec.DeviceSpecV1()
d.parse_from_string("/job:foo/replica:0")
self.assertEqual("/job:foo/replica:0", d.to_string())
d.parse_from_string("/replica:1/task:0/cpu:0")
self.assertEqual("/replica:1/task:0/device:CPU:0", d.to_string())
d.parse_from_string("/replica:1/task:0/device:CPU:0")
self.assertEqual("/replica:1/task:0/device:CPU:0", d.to_string())
d.parse_from_string("/job:muu/device:GPU:2")
self.assertEqual("/job:muu/device:GPU:2", d.to_string())
with self.assertRaisesRegex(ValueError,
"Multiple device types are not allowed"):
d.parse_from_string("/job:muu/device:GPU:2/cpu:0")
@parameterized.named_parameters(*TEST_V1_AND_V2)
def test_to_from_string(self, device_spec_type):
d = device_spec_type.from_string("/job:foo/replica:0")
self.assertEqual("/job:foo/replica:0", d.to_string())
self.assertEqual(0, d.replica)
d = device_spec_type.from_string("/replica:1/task:0/cpu:0")
self.assertEqual("/replica:1/task:0/device:CPU:0", d.to_string())
self.assertAllEqual([1, 0, "CPU", 0],
[d.replica, d.task, d.device_type, d.device_index])
d = device_spec_type.from_string("/replica:1/task:0/device:CPU:0")
self.assertEqual("/replica:1/task:0/device:CPU:0", d.to_string())
self.assertAllEqual([1, 0, "CPU", 0],
[d.replica, d.task, d.device_type, d.device_index])
d = device_spec_type.from_string("/job:muu/device:GPU:2")
self.assertEqual("/job:muu/device:GPU:2", d.to_string())
self.assertAllEqual(["muu", "GPU", 2],
[d.job, d.device_type, d.device_index])
with self.assertRaisesRegex(ValueError,
"Multiple device types are not allowed"):
d.parse_from_string("/job:muu/device:GPU:2/cpu:0")
def test_merge_legacy(self):
d = device_spec.DeviceSpecV1.from_string("/job:foo/replica:0")
self.assertEqual("/job:foo/replica:0", d.to_string())
d.merge_from(device_spec.DeviceSpecV1.from_string("/task:1/device:GPU:2"))
self.assertEqual("/job:foo/replica:0/task:1/device:GPU:2", d.to_string())
d = device_spec.DeviceSpecV1()
d.merge_from(device_spec.DeviceSpecV1.from_string("/task:1/cpu:0"))
self.assertEqual("/task:1/device:CPU:0", d.to_string())
d.merge_from(device_spec.DeviceSpecV1.from_string("/job:boo/device:GPU:0"))
self.assertEqual("/job:boo/task:1/device:GPU:0", d.to_string())
d.merge_from(device_spec.DeviceSpecV1.from_string("/job:muu/cpu:2"))
self.assertEqual("/job:muu/task:1/device:CPU:2", d.to_string())
d.merge_from(device_spec.DeviceSpecV1.from_string(
"/job:muu/device:MyFunnyDevice:2"))
self.assertEqual("/job:muu/task:1/device:MyFunnyDevice:2", d.to_string())
def test_merge_removed(self):
with self.assertRaises(AttributeError):
d = device_spec.DeviceSpecV2()
d.merge_from(device_spec.DeviceSpecV2.from_string("/task:1/cpu:0"))
@parameterized.named_parameters(*TEST_V1_AND_V2)
def test_combine(self, device_spec_type):
d = device_spec_type.from_string("/job:foo/replica:0")
self.assertEqual("/job:foo/replica:0", d.to_string())
d = d.make_merged_spec(
device_spec_type.from_string("/task:1/device:GPU:2"))
self.assertEqual("/job:foo/replica:0/task:1/device:GPU:2", d.to_string())
d = device_spec_type()
d = d.make_merged_spec(device_spec_type.from_string("/task:1/cpu:0"))
self.assertEqual("/task:1/device:CPU:0", d.to_string())
d = d.make_merged_spec(
device_spec_type.from_string("/job:boo/device:GPU:0"))
self.assertEqual("/job:boo/task:1/device:GPU:0", d.to_string())
d = d.make_merged_spec(device_spec_type.from_string("/job:muu/cpu:2"))
self.assertEqual("/job:muu/task:1/device:CPU:2", d.to_string())
d = d.make_merged_spec(device_spec_type.from_string(
"/job:muu/device:MyFunnyDevice:2"))
self.assertEqual("/job:muu/task:1/device:MyFunnyDevice:2", d.to_string())
if __name__ == "__main__":
googletest.main()