Fix judge pslib transpiler (#23720)

* fix judge pslib & ranspiler

python/paddle/fluid/device_worker.py

@@ -13,6 +13,10 @@
 # limitations under the License.
 """Defination of device workers."""
 
+from __future__ import print_function
+
+from paddle.fluid.incubate.fleet.parameter_server import version
+
 __all__ = [
     'DeviceWorker', 'Hogwild', 'DownpourSGD', 'Section', 'DownpourSGDOPT'
 ]
@@ -101,6 +105,9 @@ class Hogwild(DeviceWorker):
         if not opt_info:
             return
 
+        if version.is_transpiler() and "fleet_desc" not in opt_info:
+            return
+
         program_configs = opt_info["program_configs"]
         downpour = trainer_desc.downpour_param
         hogwild = trainer_desc.hogwild_param
@@ -406,7 +413,7 @@ class Section(DeviceWorker):
             cfg.program_desc.ParseFromString(program["program"]._get_desc()
                                              .serialize_to_string())
             # TODO: why does not work
-            #cfg.program_desc.CopyFrom(program.program._get_desc())
+            # cfg.program_desc.CopyFrom(program.program._get_desc())
             place = pipeline_opt["place_list"][i]
             if isinstance(place, core.CPUPlace):
                 cfg.place = cfg.CPUPlace

python/paddle/fluid/incubate/fleet/base/fleet_base.py

@@ -20,19 +20,15 @@ import paddle.fluid as fluid
 from paddle.fluid.executor import Executor
 from paddle.fluid.optimizer import SGD
 
+from paddle.fluid.incubate.fleet.base.mode import Mode
 from paddle.fluid.incubate.fleet.base.role_maker import MPISymetricRoleMaker
 from paddle.fluid.incubate.fleet.base.role_maker import RoleMakerBase
 from paddle.fluid.incubate.fleet.base.role_maker import UserDefinedRoleMaker
 from paddle.fluid.contrib.mixed_precision.decorator import OptimizerWithMixedPrecision
+from . import mode
 
-
-class Mode:
-    """
-    There are various mode for fleet, each of them is designed for different model.
-    """
-    TRANSPILER = 1
-    PSLIB = 2
-    COLLECTIVE = 3
+__all__ = ['Fleet', 'DistributedOptimizer']
+__all__ += mode.__all__
 
 
 class Fleet(object):

python/paddle/fluid/incubate/fleet/base/mode.py

+#   Copyright (c) 2020 PaddlePaddle 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.
+
+from __future__ import print_function
+
+__all__ = ['Mode']
+
+
+class Mode:
+    """
+    There are various mode for fleet, each of them is designed for different model.
+    """
+    TRANSPILER = 1
+    PSLIB = 2
+    COLLECTIVE = 3

python/setup.py.in

@@ -5,6 +5,7 @@ import re
 import shutil
 import sys
 import fnmatch
+import errno
 
 from contextlib import contextmanager
 from setuptools import Command
@@ -103,6 +104,34 @@ def mkl():
 
 write_version_py(filename='@PADDLE_BINARY_DIR@/python/paddle/version.py')
 
+def write_distributed_training_mode_py(filename='paddle/fluid/incubate/fleet/parameter_server/version.py'):
+    cnt = '''from __future__ import print_function
+
+# THIS FILE IS GENERATED FROM PADDLEPADDLE SETUP.PY
+
+from paddle.fluid.incubate.fleet.base.mode import Mode
+
+BUILD_MODE=Mode.%(mode)s
+
+def is_transpiler():
+    return Mode.TRANSPILER == BUILD_MODE
+
+'''
+
+    dirname = os.path.dirname(filename)
+
+    try:
+        os.makedirs(dirname)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+
+    with open(filename, 'w') as f:
+        f.write(cnt % {
+            'mode': 'PSLIB' if '${WITH_PSLIB}' == 'ON' else 'TRANSPILER'
+        })
+
+write_distributed_training_mode_py(filename='@PADDLE_BINARY_DIR@/python/paddle/fluid/incubate/fleet/parameter_server/version.py')
 
 packages=['paddle',
           'paddle.libs',