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Python

# Copyright 2015 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."""
from absl.testing import parameterized
from tensorflow.python.eager import context
from tensorflow.python.framework import device
from tensorflow.python.framework import device_spec
from tensorflow.python.framework import ops
from tensorflow.python.framework import test_util
from tensorflow.python.ops import variables
from tensorflow.python.platform import googletest
TEST_V1_AND_V2 = (("v1", device_spec.DeviceSpecV1), ("v2",
device_spec.DeviceSpecV2))
class DeviceTest(test_util.TensorFlowTestCase, parameterized.TestCase):
@parameterized.named_parameters(*TEST_V1_AND_V2)
def testMerge(self, DeviceSpec): # pylint: disable=invalid-name
d = DeviceSpec.from_string("/job:muu/task:1/device:MyFunnyDevice:2")
self.assertEqual("/job:muu/task:1/device:MyFunnyDevice:2", d.to_string())
if not context.executing_eagerly():
with ops.device(device.merge_device("/device:GPU:0")):
var1 = variables.Variable(1.0)
self.assertEqual("/device:GPU:0", var1.device)
with ops.device(device.merge_device("/job:worker")):
var2 = variables.Variable(1.0)
self.assertEqual("/job:worker/device:GPU:0", var2.device)
with ops.device(device.merge_device("/device:CPU:0")):
var3 = variables.Variable(1.0)
self.assertEqual("/job:worker/device:CPU:0", var3.device)
with ops.device(device.merge_device("/job:ps")):
var4 = variables.Variable(1.0)
self.assertEqual("/job:ps/device:CPU:0", var4.device)
def testCanonicalName(self):
self.assertEqual("/job:foo/replica:0",
device.canonical_name("/job:foo/replica:0"))
self.assertEqual("/job:foo/replica:0",
device.canonical_name("/replica:0/job:foo"))
self.assertEqual("/job:foo/replica:0/task:0",
device.canonical_name("/job:foo/replica:0/task:0"))
self.assertEqual("/job:foo/replica:0/task:0",
device.canonical_name("/job:foo/task:0/replica:0"))
self.assertEqual("/device:CPU:0", device.canonical_name("/device:CPU:0"))
self.assertEqual("/device:GPU:2", device.canonical_name("/device:GPU:2"))
self.assertEqual(
"/job:foo/replica:0/task:0/device:GPU:0",
device.canonical_name("/job:foo/replica:0/task:0/device:GPU:0"))
self.assertEqual(
"/job:foo/replica:0/task:0/device:GPU:0",
device.canonical_name("/device:GPU:0/task:0/replica:0/job:foo"))
def testCheckValid(self):
device.check_valid("/job:foo/replica:0")
with self.assertRaisesRegex(ValueError, "invalid literal for int"):
device.check_valid("/job:j/replica:foo")
with self.assertRaisesRegex(ValueError, "invalid literal for int"):
device.check_valid("/job:j/task:bar")
# Assume no one will register a device type named "barcpugpu"
with self.assertRaisesRegex(ValueError, "Unknown attribute 'barcpugpu'"):
device.check_valid("/barcpugpu:muu/baz:2")
with self.assertRaisesRegex(ValueError,
"Multiple device types are not allowed"):
device.check_valid("/cpu:0/device:GPU:2")
if __name__ == "__main__":
googletest.main()