Merge pull request #15948 from panyx0718/api2

Add deprecation warning

paddle/scripts/paddle_build.sh

@@ -432,8 +432,8 @@ function assert_api_spec_approvals() {
         BRANCH="develop"
     fi
 
-    API_FILES=("cmake/external"
-               "paddle/fluid/API.spec"
+    API_FILES=("paddle/fluid/API.spec"
+               "python/paddle/fluid/parallel_executor.py"
                "paddle/fluid/framework/operator.h"
                "paddle/fluid/framework/tensor.h"
                "paddle/fluid/framework/lod_tensor.h"

python/paddle/fluid/parallel_executor.py

@@ -92,6 +92,11 @@ class ParallelExecutor(object):
                  num_trainers=1,
                  trainer_id=0,
                  scope=None):
+        sys.stderr.write(
+            'ParallelExecutor is deprecated. '
+            'Please use CompiledProgram and Executor. CompiledProgram '
+            'is a central place for optimization and Executor is the '
+            'unified executor. Example can be found in compiler.py.\n')
         # step1: get places, the places are used in run too.
         self._places = []
         if use_cuda:

python/paddle/fluid/transpiler/inference_transpiler.py

@@ -15,6 +15,7 @@
 from __future__ import print_function
 
 import os
+import sys
 import numpy as np
 from .. import core
 from ..framework import Program
@@ -50,6 +51,9 @@ class InferenceTranspiler(object):
             place (Place): inference place
             scope (Scope|None): inference Scope
         '''
+        sys.stderr.write("InferenceTranspiler is deprecated since it's not "
+                         "safe. Users should be "
+                         "responsible for constructing the inference program\n")
         if not isinstance(program, Program):
             raise TypeError("program should be as Program type")
         if not isinstance(place, core.CPUPlace) and not isinstance(

python/paddle/fluid/transpiler/memory_optimization_transpiler.py

@@ -15,6 +15,7 @@
 from __future__ import print_function
 
 import six
+import sys
 from collections import defaultdict, MutableSet
 from .. import core
 from ... import compat as cpt
@@ -509,6 +510,8 @@ def memory_optimize(input_program,
     Returns:
         None
     """
+    sys.stderr.write('memory_optimize is deprecated. '
+                     'Use CompiledProgram and Executor\n')
 
     def to_name_str(var):
         if isinstance(var, Variable):