mirror of
https://github.com/zebrajr/pytorch.git
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8286ce1e3a
Summary: Closes https://github.com/caffe2/caffe2/pull/1260 Differential Revision: D5906739 Pulled By: Yangqing fbshipit-source-id: e482ba9ba60b5337d9165f28f7ec68d4518a0902
125 lines
4.0 KiB
Python
125 lines
4.0 KiB
Python
# Copyright (c) 2016-present, Facebook, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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##############################################################################
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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from caffe2.python import scope, core
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from caffe2.proto import caffe2_pb2
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import unittest
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import threading
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import time
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SUCCESS_COUNT = 0
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def thread_runner(idx, testobj):
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global SUCCESS_COUNT
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testobj.assertEquals(scope.CurrentNameScope(), "")
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testobj.assertEquals(scope.CurrentDeviceScope(), None)
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namescope = "namescope_{}".format(idx)
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dsc = core.DeviceOption(caffe2_pb2.CUDA, idx)
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with scope.DeviceScope(dsc):
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with scope.NameScope(namescope):
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testobj.assertEquals(scope.CurrentNameScope(), namescope + "/")
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testobj.assertEquals(scope.CurrentDeviceScope(), dsc)
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time.sleep(0.01 + idx * 0.01)
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testobj.assertEquals(scope.CurrentNameScope(), namescope + "/")
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testobj.assertEquals(scope.CurrentDeviceScope(), dsc)
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testobj.assertEquals(scope.CurrentNameScope(), "")
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testobj.assertEquals(scope.CurrentDeviceScope(), None)
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SUCCESS_COUNT += 1
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class TestScope(unittest.TestCase):
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def testNamescopeBasic(self):
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self.assertEquals(scope.CurrentNameScope(), "")
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with scope.NameScope("test_scope"):
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self.assertEquals(scope.CurrentNameScope(), "test_scope/")
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self.assertEquals(scope.CurrentNameScope(), "")
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def testNamescopeAssertion(self):
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self.assertEquals(scope.CurrentNameScope(), "")
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try:
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with scope.NameScope("test_scope"):
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self.assertEquals(scope.CurrentNameScope(), "test_scope/")
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raise Exception()
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except Exception:
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pass
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self.assertEquals(scope.CurrentNameScope(), "")
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def testDevicescopeBasic(self):
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self.assertEquals(scope.CurrentDeviceScope(), None)
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dsc = core.DeviceOption(caffe2_pb2.CUDA, 9)
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with scope.DeviceScope(dsc):
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self.assertEquals(scope.CurrentDeviceScope(), dsc)
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self.assertEquals(scope.CurrentDeviceScope(), None)
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def testDevicescopeAssertion(self):
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self.assertEquals(scope.CurrentDeviceScope(), None)
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dsc = core.DeviceOption(caffe2_pb2.CUDA, 9)
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try:
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with scope.DeviceScope(dsc):
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self.assertEquals(scope.CurrentDeviceScope(), dsc)
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raise Exception()
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except Exception:
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pass
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self.assertEquals(scope.CurrentDeviceScope(), None)
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def testMultiThreaded(self):
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"""
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Test that name/device scope are properly local to the thread
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and don't interfere
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"""
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global SUCCESS_COUNT
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self.assertEquals(scope.CurrentNameScope(), "")
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self.assertEquals(scope.CurrentDeviceScope(), None)
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threads = []
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for i in range(4):
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threads.append(threading.Thread(
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target=thread_runner,
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args=(i, self),
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))
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for t in threads:
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t.start()
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with scope.NameScope("master"):
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self.assertEquals(scope.CurrentDeviceScope(), None)
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self.assertEquals(scope.CurrentNameScope(), "master/")
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for t in threads:
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t.join()
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self.assertEquals(scope.CurrentNameScope(), "master/")
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self.assertEquals(scope.CurrentDeviceScope(), None)
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# Ensure all threads succeeded
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self.assertEquals(SUCCESS_COUNT, 4)
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