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# 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 __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from tensorflow.python.eager import context
from tensorflow.python.framework import device
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
class DeviceTest(test_util.TensorFlowTestCase):
def testEmpty(self):
d = device.DeviceSpec()
self.assertEquals("", d.to_string())
d.parse_from_string("")
self.assertEquals("", d.to_string())
def testConstructor(self):
d = device.DeviceSpec(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.DeviceSpec(device_type="GPU", device_index=0)
self.assertEquals("/device:GPU:0", d.to_string())
def testto_string(self):
d = device.DeviceSpec()
d.job = "foo"
self.assertEquals("/job:foo", d.to_string())
d.task = 3
self.assertEquals("/job:foo/task:3", d.to_string())
d.device_type = "CPU"
d.device_index = 0
self.assertEquals("/job:foo/task:3/device:CPU:0", d.to_string())
d.task = None
d.replica = 12
self.assertEquals("/job:foo/replica:12/device:CPU:0", d.to_string())
d.device_type = "GPU"
d.device_index = 2
self.assertEquals("/job:foo/replica:12/device:GPU:2", d.to_string())
d.device_type = "CPU"
d.device_index = 1
self.assertEquals("/job:foo/replica:12/device:CPU:1", d.to_string())
d.device_type = None
d.device_index = None
d.cpu = None
self.assertEquals("/job:foo/replica:12", d.to_string())
# Test wildcard
d = device.DeviceSpec(job="foo", replica=12, task=3, device_type="GPU")
self.assertEquals("/job:foo/replica:12/task:3/device:GPU:*", d.to_string())
def testParse(self):
d = device.DeviceSpec()
d.parse_from_string("/job:foo/replica:0")
self.assertEquals("/job:foo/replica:0", d.to_string())
d.parse_from_string("/replica:1/task:0/cpu:0")
self.assertEquals("/replica:1/task:0/device:CPU:0", d.to_string())
d.parse_from_string("/replica:1/task:0/device:CPU:0")
self.assertEquals("/replica:1/task:0/device:CPU:0", d.to_string())
d.parse_from_string("/job:muu/device:GPU:2")
self.assertEquals("/job:muu/device:GPU:2", d.to_string())
with self.assertRaises(Exception) as e:
d.parse_from_string("/job:muu/device:GPU:2/cpu:0")
self.assertTrue("Cannot specify multiple device" in str(e.exception))
def testFromString(self):
d = device.DeviceSpec.from_string("/job:foo/replica:0")
self.assertEquals("/job:foo/replica:0", d.to_string())
with self.assertRaises(Exception) as e:
d = device.DeviceSpec.from_string("/job:muu/device:GPU:2/cpu:0")
self.assertTrue("Cannot specify multiple device" in str(e.exception))
d = device.DeviceSpec.from_string("/job:foo/replica:0/task:3/cpu:*")
self.assertEquals(None, d.device_index)
d = device.DeviceSpec.from_string("/job:foo/replica:0/task:3/gpu:7")
self.assertEquals(7, d.device_index)
d = device.DeviceSpec.from_string("/job:foo/replica:0/task:3/device:GPU:7")
self.assertEquals(7, d.device_index)
def testMerge(self):
d = device.DeviceSpec.from_string("/job:foo/replica:0")
self.assertEquals("/job:foo/replica:0", d.to_string())
d.merge_from(device.DeviceSpec.from_string("/task:1/device:GPU:2"))
self.assertEquals("/job:foo/replica:0/task:1/device:GPU:2", d.to_string())
d = device.DeviceSpec()
d.merge_from(device.DeviceSpec.from_string("/task:1/cpu:0"))
self.assertEquals("/task:1/device:CPU:0", d.to_string())
d.merge_from(device.DeviceSpec.from_string("/job:boo/device:GPU:0"))
self.assertEquals("/job:boo/task:1/device:GPU:0", d.to_string())
d.merge_from(device.DeviceSpec.from_string("/job:muu/cpu:2"))
self.assertEquals("/job:muu/task:1/device:CPU:2", d.to_string())
d.merge_from(device.DeviceSpec.from_string(
"/job:muu/device:MyFunnyDevice:2"))
self.assertEquals("/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.assertEquals("/device:GPU:0", var1.device)
with ops.device(device.merge_device("/job:worker")):
var2 = variables.Variable(1.0)
self.assertEquals("/job:worker/device:GPU:0", var2.device)
with ops.device(device.merge_device("/device:CPU:0")):
var3 = variables.Variable(1.0)
self.assertEquals("/job:worker/device:CPU:0", var3.device)
with ops.device(device.merge_device("/job:ps")):
var4 = variables.Variable(1.0)
self.assertEquals("/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.assertRaises(Exception) as e:
device.check_valid("/job:j/replica:foo")
self.assertTrue("invalid literal for int" in str(e.exception))
with self.assertRaises(Exception) as e:
device.check_valid("/job:j/task:bar")
self.assertTrue("invalid literal for int" in str(e.exception))
with self.assertRaises(Exception) as e:
device.check_valid("/bar:muu/baz:2")
self.assertTrue("Unknown attribute: 'bar'" in str(e.exception))
with self.assertRaises(Exception) as e:
device.check_valid("/cpu:0/device:GPU:2")
self.assertTrue("Cannot specify multiple device" in str(e.exception))
if __name__ == "__main__":
googletest.main()