add hadoop helper function for distributed training

python/paddle/fluid/async_executor.py

@@ -150,8 +150,13 @@ class AsyncExecutor(object):
                                      data_feed.desc(), filelist, thread_num,
                                      fetch_var_names, debug)
 
-    def config_ps(self, dist_desc, host_sign_list, node_num, index):
-        self.executor.config_pslib(dist_desc, host_sign_list, node_num, index)
+    def config_distributed_nodes(self, dist_opt):
+        # get total rank
+        # get rank index
+        # get iplists
+        # get hadoop info
+        return
+
 
     def start_server(self):
         self.executor.start_server()

python/paddle/fluid/distribute_lookup_table.py

@@ -21,7 +21,8 @@ def find_distributed_lookup_table_inputs(program, table_name):
     for op in program.global_block().ops:
         if op.type == LOOKUP_TABLE_TYPE:
             if table_name == op.input("W")[0]:
-                inputs.extend([local_vars[name] for name in op.input("Ids")])
+                inputs.extend(
+                    [local_vars[name] for name in op.input("Ids")])
     return inputs
 
 def find_distributed_lookup_table_outputs(program, table_name):
@@ -30,7 +31,8 @@ def find_distributed_lookup_table_outputs(program, table_name):
     for op in program.global_block().ops:
         if op.type == LOOKUP_TABLE_TYPE:
             if table_name == op.input("W")[0]:
-                outputs.extend([local_vars[name] for name in op.output("Out")])
+                outputs.extend(
+                    [local_vars[name] for name in op.output("Out")])
     return outputs
 
 def find_distributed_lookup_table(program):

python/paddle/fluid/distributed/downpour.py

@@ -8,30 +8,57 @@ from paddle.fluid.distribute_lookup_table import find_distributed_lookup_table_o
 from google.protobuf import text_format
 
 class DownpourSGD(object):
+    """
+    Distributed optimizer of downpour stochastic gradient descent
+    Standard implementation of Google's Downpour SGD
+    in Large Scale Distributed Deep Networks
+
+    Args:
+        learning_rate (float): the learning rate used to update parameters. \
+        Can be a float value
+    Examples:
+        .. code-block:: python
+    
+             downpour_sgd = fluid.distributed.DownpourSGD(learning_rate=0.2)
+             downpour_sgd.minimize(cost)
+    """
     def __init__(self, learning_rate=0.001, window=1):
-        # todo(guru4elephant): if optimizer is not None, will warning here
+        # todo(guru4elephant): add more optimizers here as argument
+        # todo(guru4elephant): make learning_rate as a variable
         self.learning_rate_ = learning_rate
         self.window_ = window
-
+        self.type = "downpour"
+    
     def minimize(self, loss, startup_program=None,
                  parameter_list=None, no_grad_set=None):
-        params_grads = sorted(append_backward(loss), key=lambda x:x[0].name)
+        params_grads = sorted(append_backward(
+            loss, parameter_list, no_grad_set), key=lambda x:x[0].name)
         table_name = find_distributed_lookup_table(loss.block.program)
         prefetch_slots = find_distributed_lookup_table_inputs(
             loss.block.program, table_name)
         prefetch_slots_emb = find_distributed_lookup_table_outputs(
             loss.block.program, table_name)
         server = DownpourServer()
+        # window is communication strategy
         worker = DownpourWorker(self.window_)
-        server.add_sparse_table(0, self.learning_rate_,
+        # Todo(guru4elephant): support multiple tables definitions
+        # currently support one big sparse table
+        sparse_table_index = 0
+        # currently merge all dense parameters into one dense table
+        dense_table_index = 1
+        server.add_sparse_table(sparse_table_index, self.learning_rate_,
                                 prefetch_slots, prefetch_slots_emb)
-        server.add_dense_table(1, self.learning_rate_, params_grads[0], params_grads[1])
-        worker.add_sparse_table(0, self.learning_rate_,
+        server.add_dense_table(dense_table_index, self.learning_rate_, 
+                               params_grads[0], params_grads[1])
+        worker.add_sparse_table(sparse_table_index, self.learning_rate_,
                                 prefetch_slots, prefetch_slots_emb)
-        worker.add_dense_table(1, self.learning_rate_, params_grads[0], params_grads[1])
+        worker.add_dense_table(dense_table_index, self.learning_rate_, 
+                               params_grads[0], params_grads[1])
         ps_param = pslib.PSParameter()
         ps_param.server_param.CopyFrom(server.get_desc())
-        #ps_param.worker_param.CopyFrom(worker.get_desc())
+        ps_param.worker_param.CopyFrom(worker.get_desc())
+        # Todo(guru4elephant): figure out how to support more sparse parameters
+        # currently only support lookup_table
         worker_skipped_ops = ["lookup_table", "lookup_table_grad"]
         ps_param_str = text_format.MessageToString(ps_param)
-        return [ps_param_str, worker_skipped_ops, text_format.MessageToString(worker.get_desc())]
+        return [ps_param_str, worker_skipped_ops]

python/paddle/fluid/distributed/helper.py

 from mpi4py import MPI
 
+class FileSystem(object):
+    def __init__(self, fs_type="afs",
+                 uri="afs://tianqi.afs.baidu.com:9902",
+                 user=None,
+                 passwd=None,
+                 hadoop_bin="",
+                 afs_conf=None):
+        assert user not None
+        assert passwd not None
+        assert hadoop_bin not None
+        fs_client = pslib.FsClientParameter()
+        if fs_type == "afs":
+            fs_client.fs_type = pslib.FsApiType.AFS
+        else:
+            fs_client.fs_type = pslib.FsApiType.HDFS
+        fs_client.uri = uri
+        fs_client.user = user
+        fs_client.passwd = passwd
+        fs_client.buffer_size = 0
+        fs_client.afs_conf = afs_conf if not afs_conf else ""
+
+
 class MPIHelper(object):
     def __init__(self):
         self.comm = MPI.COMM_WORLD
@@ -18,3 +40,5 @@ class MPIHelper(object):
     def get_hostname(self):
         import socket
         return socket.gethostname()
+    
+        

python/paddle/fluid/distributed/node.py

@@ -12,7 +12,6 @@ class Worker(object):
 
 class DownpourServer(Server):
     def __init__(self):
-        #self.server_ = pslib.ServerParameter().downpour_server_param
         self.server_ = pslib.ServerParameter()
 
     def add_sparse_table(self, table_id, learning_rate,

python/paddle/fluid/distributed/ps_pb2.py

@@ -20,7 +20,7 @@ DESCRIPTOR = _descriptor.FileDescriptor(
   name='ps.proto',
   package='paddle',
   syntax='proto2',
-  serialized_pb=_b('\n\x08ps.proto\x12\x06paddle\"\xe4\x01\n\x0bPSParameter\x12\x14\n\x0cworker_class\x18\x01 \x01(\t\x12\x14\n\x0cserver_class\x18\x02 \x01(\t\x12\x16\n\x0einstance_class\x18\x03 \x01(\t\x12-\n\x0cworker_param\x18\x65 \x01(\x0b\x32\x17.paddle.WorkerParameter\x12-\n\x0cserver_param\x18\x66 \x01(\x0b\x32\x17.paddle.ServerParameter\x12\x33\n\x0f\x66s_client_param\x18\xf5\x03 \x01(\x0b\x32\x19.paddle.FsClientParameter\"Q\n\x0fWorkerParameter\x12>\n\x15\x64ownpour_worker_param\x18\x01 \x01(\x0b\x32\x1f.paddle.DownpourWorkerParameter\"Q\n\x0fServerParameter\x12>\n\x15\x64ownpour_server_param\x18\x01 \x01(\x0b\x32\x1f.paddle.DownpourServerParameter\"O\n\x17\x44ownpourWorkerParameter\x12\x34\n\x14\x64ownpour_table_param\x18\x01 \x03(\x0b\x32\x16.paddle.TableParameter\"\xbc\x01\n\x18\x44ownpourTrainerParameter\x12\x30\n\x0b\x64\x65nse_table\x18\x02 \x03(\x0b\x32\x1b.paddle.DenseTableParameter\x12\x32\n\x0csparse_table\x18\x03 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+  serialized_pb=_b('\n\x08ps.proto\x12\x06paddle\"\x9e\x02\n\x0bPSParameter\x12\x14\n\x0cworker_class\x18\x01 \x01(\t\x12\x14\n\x0cserver_class\x18\x02 \x01(\t\x12\x16\n\x0einstance_class\x18\x03 \x01(\t\x12-\n\x0cworker_param\x18\x65 \x01(\x0b\x32\x17.paddle.WorkerParameter\x12-\n\x0cserver_param\x18\x66 \x01(\x0b\x32\x17.paddle.ServerParameter\x12\x38\n\rtrainer_param\x18\xad\x02 \x01(\x0b\x32 .paddle.DownpourTrainerParameter\x12\x33\n\x0f\x66s_client_param\x18\xf5\x03 \x01(\x0b\x32\x19.paddle.FsClientParameter\"Q\n\x0fWorkerParameter\x12>\n\x15\x64ownpour_worker_param\x18\x01 \x01(\x0b\x32\x1f.paddle.DownpourWorkerParameter\"Q\n\x0fServerParameter\x12>\n\x15\x64ownpour_server_param\x18\x01 \x01(\x0b\x32\x1f.paddle.DownpourServerParameter\"O\n\x17\x44ownpourWorkerParameter\x12\x34\n\x14\x64ownpour_table_param\x18\x01 \x03(\x0b\x32\x16.paddle.TableParameter\"\xbc\x01\n\x18\x44ownpourTrainerParameter\x12\x30\n\x0b\x64\x65nse_table\x18\x01 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 )
 _sym_db.RegisterFileDescriptor(DESCRIPTOR)
 
@@ -41,8 +41,8 @@ _TABLETYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3140,
-  serialized_end=3192,
+  serialized_start=3198,
+  serialized_end=3250,
 )
 _sym_db.RegisterEnumDescriptor(_TABLETYPE)
 
@@ -108,8 +108,8 @@ _PSCMDID = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3195,
-  serialized_end=3512,
+  serialized_start=3253,
+  serialized_end=3570,
 )
 _sym_db.RegisterEnumDescriptor(_PSCMDID)
 
@@ -148,8 +148,8 @@ _FSCLIENTPARAMETER_FSAPITYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3108,
-  serialized_end=3138,
+  serialized_start=3166,
+  serialized_end=3196,
 )
 _sym_db.RegisterEnumDescriptor(_FSCLIENTPARAMETER_FSAPITYPE)
 
@@ -197,7 +197,14 @@ _PSPARAMETER = _descriptor.Descriptor(
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='fs_client_param', full_name='paddle.PSParameter.fs_client_param', index=5,
+      name='trainer_param', full_name='paddle.PSParameter.trainer_param', index=5,
+      number=301, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='fs_client_param', full_name='paddle.PSParameter.fs_client_param', index=6,
       number=501, type=11, cpp_type=10, label=1,
       has_default_value=False, default_value=None,
       message_type=None, enum_type=None, containing_type=None,
@@ -216,7 +223,7 @@ _PSPARAMETER = _descriptor.Descriptor(
   oneofs=[
   ],
   serialized_start=21,
-  serialized_end=249,
+  serialized_end=307,
 )
 
 
@@ -246,8 +253,8 @@ _WORKERPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=251,
-  serialized_end=332,
+  serialized_start=309,
+  serialized_end=390,
 )
 
 
@@ -277,8 +284,8 @@ _SERVERPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=334,
-  serialized_end=415,
+  serialized_start=392,
+  serialized_end=473,
 )
 
 
@@ -308,8 +315,8 @@ _DOWNPOURWORKERPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=417,
-  serialized_end=496,
+  serialized_start=475,
+  serialized_end=554,
 )
 
 
@@ -322,28 +329,28 @@ _DOWNPOURTRAINERPARAMETER = _descriptor.Descriptor(
   fields=[
     _descriptor.FieldDescriptor(
       name='dense_table', full_name='paddle.DownpourTrainerParameter.dense_table', index=0,
-      number=2, type=11, cpp_type=10, label=3,
+      number=1, type=11, cpp_type=10, label=3,
       has_default_value=False, default_value=[],
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
       name='sparse_table', full_name='paddle.DownpourTrainerParameter.sparse_table', index=1,
-      number=3, type=11, cpp_type=10, label=3,
+      number=2, type=11, cpp_type=10, label=3,
       has_default_value=False, default_value=[],
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
       name='pull_dense_per_batch', full_name='paddle.DownpourTrainerParameter.pull_dense_per_batch', index=2,
-      number=4, type=5, cpp_type=1, label=1,
+      number=3, type=5, cpp_type=1, label=1,
       has_default_value=False, default_value=0,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
       name='push_dense_per_batch', full_name='paddle.DownpourTrainerParameter.push_dense_per_batch', index=3,
-      number=5, type=5, cpp_type=1, label=1,
+      number=4, type=5, cpp_type=1, label=1,
       has_default_value=False, default_value=0,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
@@ -360,8 +367,8 @@ _DOWNPOURTRAINERPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=499,
-  serialized_end=687,
+  serialized_start=557,
+  serialized_end=745,
 )
 
 
@@ -412,8 +419,8 @@ _DENSETABLEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=689,
-  serialized_end=812,
+  serialized_start=747,
+  serialized_end=870,
 )
 
 
@@ -471,8 +478,8 @@ _SPARSETABLEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=814,
-  serialized_end=936,
+  serialized_start=872,
+  serialized_end=994,
 )
 
 
@@ -509,8 +516,8 @@ _DOWNPOURSERVERPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=939,
-  serialized_end=1073,
+  serialized_start=997,
+  serialized_end=1131,
 )
 
 
@@ -568,8 +575,8 @@ _SERVERSERVICEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1076,
-  serialized_end=1221,
+  serialized_start=1134,
+  serialized_end=1279,
 )
 
 
@@ -634,8 +641,8 @@ _TABLEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1224,
-  serialized_end=1415,
+  serialized_start=1282,
+  serialized_end=1473,
 )
 
 
@@ -714,8 +721,8 @@ _TABLEACCESSORPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1418,
-  serialized_end=1787,
+  serialized_start=1476,
+  serialized_end=1845,
 )
 
 
@@ -787,8 +794,8 @@ _DOWNPOURTABLEACCESSORPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1790,
-  serialized_end=1996,
+  serialized_start=1848,
+  serialized_end=2054,
 )
 
 
@@ -832,8 +839,8 @@ _TABLEACCESSORSAVEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1998,
-  serialized_end=2081,
+  serialized_start=2056,
+  serialized_end=2139,
 )
 
 
@@ -891,8 +898,8 @@ _PSREQUESTMESSAGE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2083,
-  serialized_end=2184,
+  serialized_start=2141,
+  serialized_end=2242,
 )
 
 
@@ -943,8 +950,8 @@ _SPARSESGDRULEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2186,
-  serialized_end=2305,
+  serialized_start=2244,
+  serialized_end=2363,
 )
 
 
@@ -1002,8 +1009,8 @@ _DENSESGDRULEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2308,
-  serialized_end=2533,
+  serialized_start=2366,
+  serialized_end=2591,
 )
 
 
@@ -1061,8 +1068,8 @@ _ADAMSGDPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2536,
-  serialized_end=2670,
+  serialized_start=2594,
+  serialized_end=2728,
 )
 
 
@@ -1099,8 +1106,8 @@ _NAIVESGDPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2672,
-  serialized_end=2738,
+  serialized_start=2730,
+  serialized_end=2796,
 )
 
 
@@ -1130,8 +1137,8 @@ _SUMMARYSGDPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2740,
-  serialized_end=2799,
+  serialized_start=2798,
+  serialized_end=2857,
 )
 
 
@@ -1161,8 +1168,8 @@ _MOVINGAVERAGERULEPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2801,
-  serialized_end=2847,
+  serialized_start=2859,
+  serialized_end=2905,
 )
 
 
@@ -1206,8 +1213,8 @@ _PSRESPONSEMESSAGE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2849,
-  serialized_end=2922,
+  serialized_start=2907,
+  serialized_end=2980,
 )
 
 
@@ -1280,12 +1287,13 @@ _FSCLIENTPARAMETER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2925,
-  serialized_end=3138,
+  serialized_start=2983,
+  serialized_end=3196,
 )
 
 _PSPARAMETER.fields_by_name['worker_param'].message_type = _WORKERPARAMETER
 _PSPARAMETER.fields_by_name['server_param'].message_type = _SERVERPARAMETER
+_PSPARAMETER.fields_by_name['trainer_param'].message_type = _DOWNPOURTRAINERPARAMETER
 _PSPARAMETER.fields_by_name['fs_client_param'].message_type = _FSCLIENTPARAMETER
 _WORKERPARAMETER.fields_by_name['downpour_worker_param'].message_type = _DOWNPOURWORKERPARAMETER
 _SERVERPARAMETER.fields_by_name['downpour_server_param'].message_type = _DOWNPOURSERVERPARAMETER