diff --git a/paddle/fluid/API.spec b/paddle/fluid/API.spec
index 2732b8f7a8f66fa8ea12e4db731685e2700cea5a..52c9eefb23d4fe79a4d7cf525881dec4428c7fce 100644
--- a/paddle/fluid/API.spec
+++ b/paddle/fluid/API.spec
@@ -27,8 +27,8 @@ paddle.fluid.DistributeTranspiler.get_pserver_programs (ArgSpec(args=['self', 'e
 paddle.fluid.DistributeTranspiler.get_startup_program (ArgSpec(args=['self', 'endpoint', 'pserver_program', 'startup_program'], varargs=None, keywords=None, defaults=(None, None)), ('document', 'd796fc0c8d51503b556fcf6dc15c4f0c'))
 paddle.fluid.DistributeTranspiler.get_trainer_program (ArgSpec(args=['self', 'wait_port'], varargs=None, keywords=None, defaults=(True,)), ('document', '736330e31a7a54abccc0c7fd9119d9ff'))
 paddle.fluid.DistributeTranspiler.transpile (ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode', 'startup_program', 'current_endpoint'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True, None, '127.0.0.1:6174')), ('document', '418c7e8b268e9be4104f2809e654c2f7'))
-paddle.fluid.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, False)), ('document', '97fdf61cf1ed4fb8f6a4b58aebce26a2'))
-paddle.fluid.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'b524b73e10f9ccdfa6d189e2e535fc17'))
+paddle.fluid.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, False)), ('document', '2348247f684bfd5bb9466470f35be064'))
+paddle.fluid.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'd38c5b8b2b2e0bb19bcf1b581a80a7e4'))
 paddle.fluid.DistributeTranspilerConfig.__init__ 
 paddle.fluid.ParallelExecutor.__init__ (ArgSpec(args=['self', 'use_cuda', 'loss_name', 'main_program', 'share_vars_from', 'exec_strategy', 'build_strategy', 'num_trainers', 'trainer_id', 'scope'], varargs=None, keywords=None, defaults=(None, None, None, None, None, 1, 0, None)), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
 paddle.fluid.ParallelExecutor.drop_local_exe_scopes (ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None), ('document', '80d857dc626612e2b2460d0154551e95'))
@@ -429,8 +429,8 @@ paddle.fluid.transpiler.DistributeTranspiler.get_pserver_programs (ArgSpec(args=
 paddle.fluid.transpiler.DistributeTranspiler.get_startup_program (ArgSpec(args=['self', 'endpoint', 'pserver_program', 'startup_program'], varargs=None, keywords=None, defaults=(None, None)), ('document', 'd796fc0c8d51503b556fcf6dc15c4f0c'))
 paddle.fluid.transpiler.DistributeTranspiler.get_trainer_program (ArgSpec(args=['self', 'wait_port'], varargs=None, keywords=None, defaults=(True,)), ('document', '736330e31a7a54abccc0c7fd9119d9ff'))
 paddle.fluid.transpiler.DistributeTranspiler.transpile (ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode', 'startup_program', 'current_endpoint'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True, None, '127.0.0.1:6174')), ('document', '418c7e8b268e9be4104f2809e654c2f7'))
-paddle.fluid.transpiler.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, False)), ('document', '97fdf61cf1ed4fb8f6a4b58aebce26a2'))
-paddle.fluid.transpiler.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'b524b73e10f9ccdfa6d189e2e535fc17'))
+paddle.fluid.transpiler.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, False)), ('document', '2348247f684bfd5bb9466470f35be064'))
+paddle.fluid.transpiler.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'd38c5b8b2b2e0bb19bcf1b581a80a7e4'))
 paddle.fluid.transpiler.HashName.__init__ (ArgSpec(args=['self', 'pserver_endpoints'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
 paddle.fluid.transpiler.HashName.dispatch (ArgSpec(args=['self', 'varlist'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
 paddle.fluid.transpiler.HashName.reset (ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
diff --git a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
index b3c509dd9df224614452711d79e650c0ed0375d2..64c8bc048609fc4867c431710639173d45fbcd6b 100755
--- a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
+++ b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
@@ -535,17 +535,20 @@ def memory_optimize(input_program,
         level(int): 0 or 1, 0 means we replace a with b only when a.size == b.size, 1 means we can replace a with b if a.size <= b.size
     Returns:
         None
+
     Examples:
-        ..  code-block:: python
-            
+        .. code-block:: python
+
             import paddle.fluid as fluid
-    
-            # build network
-            # ...
-            
-            # deprecated API
-            fluid.release_memory(fluid.default_main_program())
-    
+            main_prog = fluid.Program()
+            startup_prog = fluid.Program()
+
+            place = fluid.CPUPlace()
+            exe = fluid.Executor(place)
+
+            exe.run(startup_prog)
+            fluid.memory_optimize(main_prog)
+
     """
     sys.stderr.write('memory_optimize is deprecated. '
                      'Use CompiledProgram and Executor\n')
@@ -602,9 +605,9 @@ def release_memory(input_program, skip_opt_set=None):
         skip_opt_set(set): vars wil be skipped in memory optimze
     Returns:
         None
-   
+
     Examples:
-        ..  code-block:: python
+        .. code-block:: python
 
             import paddle.fluid as fluid
 
diff --git a/python/paddle/fluid/transpiler/ps_dispatcher.py b/python/paddle/fluid/transpiler/ps_dispatcher.py
index 6a6d14a69ba771e192a28951a6df7027741a655a..a04f6c2c79403844d14967067aebe371efdd3286 100644
--- a/python/paddle/fluid/transpiler/ps_dispatcher.py
+++ b/python/paddle/fluid/transpiler/ps_dispatcher.py
@@ -50,6 +50,16 @@ class HashName(PSDispatcher):
 
     Args:
         pserver_endpoints (list): list of endpoint(ip:port).
+
+    Examples:
+        .. code-block:: python
+
+        pserver_endpoints = ["127.0.0.1:6007", "127.0.0.1:6008"]
+        vars = ["var1","var2","var3","var4","var5"]
+
+        rr = RoundRobin(pserver_endpoints)
+        rr.dispatch(vars)
+
     """
 
     def __init__(self, pserver_endpoints):
@@ -74,6 +84,16 @@ class RoundRobin(PSDispatcher):
 
     Args:
         pserver_endpoints (list): list of endpoint(ip:port).
+
+    Examples:
+        .. code-block:: python
+
+        pserver_endpoints = ["127.0.0.1:6007", "127.0.0.1:6008"]
+        vars = ["var1","var2","var3","var4","var5"]
+
+        rr = RoundRobin(pserver_endpoints)
+        rr.dispatch(vars)
+
     """
 
     def __init__(self, pserver_endpoints):