def testto_string(self):
d = device.Device()
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.Device(job="foo", replica=12, task=3, device_type="GPU")
self.assertEquals("/job:foo/replica:12/task:3/device:GPU:*",
d.to_string())
def testConstructor(self):
d = device.Device(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.Device(device_type="GPU", device_index=0)
self.assertEquals("/device:GPU:0", d.to_string())
def device_function(self, op):
"""Chose a device for `op`.
Args:
op: an `Operation`.
Returns:
The device to use for the `Operation`.
"""
if not self._merge_devices and op.device:
return op.device
current_device = pydev.from_string(op.device or "")
spec = pydev.Device()
if self._ps_tasks and self._ps_device:
node_def = op if isinstance(op, graph_pb2.NodeDef) else op.node_def
if node_def.op in self._ps_ops:
device_string = "%s/task:%d" % (self._ps_device,
self._next_task())
if self._merge_devices:
spec = pydev.from_string(device_string)
spec.merge_from(current_device)
return spec.to_string()
else:
return device_string
if self._worker_device:
if not self._merge_devices:
return self._worker_device
spec = pydev.from_string(self._worker_device)
if not self._merge_devices:
return ""
spec.merge_from(current_device)
return spec.to_string()
def testDeviceObject(self):
op = ops.Operation(ops._NodeDef("noop", "myop"), ops.Graph(), [], [])
op._set_device("/job:goo/device:GPU:0")
self.assertProtoEquals(
"op:'noop' name:'myop' device:'/job:goo/device:GPU:0' ",
op.node_def)
op = ops.Operation(ops._NodeDef("noop", "op2"), ops.Graph(), [], [])
op._set_device(
pydev.Device(job="muu", device_type="CPU", device_index=0))
self.assertProtoEquals(
"op:'noop' name:'op2' device:'/job:muu/device:CPU:0'", op.node_def)
def testParse(self):
d = device.Device()
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/gpu:2")
self.assertEquals("/job:muu/device:GPU:2", d.to_string())
with self.assertRaises(Exception) as e:
d.parse_from_string("/job:muu/gpu:2/cpu:0")
self.assertTrue("Cannot specify multiple device" in str(e.exception))
def testDeviceFull(self):
g = ops.Graph()
with g.device(
pydev.Device(job="worker",
replica=2,
task=0,
device_type="CPU",
device_index=3)):
g.create_op("an_op", [], [dtypes.float32])
gd = g.as_graph_def()
self.assertProtoEquals(
"""
node { name: "an_op" op: "an_op"
device: "/job:worker/replica:2/task:0/device:CPU:3" }
""", gd)
def testMerge(self):
d = device.from_string("/job:foo/replica:0")
self.assertEquals("/job:foo/replica:0", d.to_string())
d.merge_from(device.from_string("/task:1/gpu:2"))
self.assertEquals("/job:foo/replica:0/task:1/device:GPU:2",
d.to_string())
d = device.Device()
d.merge_from(device.from_string("/task:1/cpu:0"))
self.assertEquals("/task:1/device:CPU:0", d.to_string())
d.merge_from(device.from_string("/job:boo/gpu:0"))
self.assertEquals("/job:boo/task:1/device:GPU:0", d.to_string())
d.merge_from(device.from_string("/job:muu/cpu:2"))
self.assertEquals("/job:muu/task:1/device:CPU:2", d.to_string())
d.merge_from(device.from_string("/job:muu/device:MyFunnyDevice:2"))
self.assertEquals("/job:muu/task:1/device:MyFunnyDevice:2",
d.to_string())
def testEmpty(self):
d = device.Device()
self.assertEquals("", d.ToString())
d.parse_from_string("")
self.assertEquals("", d.ToString())
def testArgs(self):
nodedef = ops._NodeDef("foo", "bar", device="/device:baz:*")
self.assertProtoEquals("op:'foo' name:'bar' device:'/device:baz:*'",
nodedef)
nodedef = ops._NodeDef("foo", "bar", device=pydev.Device(job="j"))
self.assertProtoEquals("op:'foo' name:'bar' device:'/job:j'", nodedef)