Merge pull request #7485 from lcy-seso/wrapper_for_elementwise_math_op

add wrapper for element-wise math operator.

doc/api/v2/fluid/layers.rst

@@ -358,3 +358,132 @@ reduce_min
 ..  autofunction:: paddle.v2.fluid.layers.reduce_min
     :noindex:
 
+logsigmoid
+----------
+..  autofunction:: paddle.v2.fluid.layers.logsigmoid
+    :noindex:
+
+exp
+---
+..  autofunction:: paddle.v2.fluid.layers.exp
+    :noindex:
+
+relu
+----
+..  autofunction:: paddle.v2.fluid.layers.relu
+    :noindex:
+
+tanh
+----
+..  autofunction:: paddle.v2.fluid.layers.tanh
+    :noindex:
+
+tanh_shrink
+-----------
+..  autofunction:: paddle.v2.fluid.layers.tanh_shrink
+    :noindex:
+
+softshrink
+----------
+..  autofunction:: paddle.v2.fluid.layers.softshrink
+    :noindex:
+
+sqrt
+----
+..  autofunction:: paddle.v2.fluid.layers.sqrt
+    :noindex:
+
+abs
+----
+..  autofunction:: paddle.v2.fluid.layers.abs
+    :noindex:
+
+ceil
+----
+..  autofunction:: paddle.v2.fluid.layers.ceil
+    :noindex:
+
+floor
+-----
+..  autofunction:: paddle.v2.fluid.layers.floor
+    :noindex:
+
+round
+-----
+..  autofunction:: paddle.v2.fluid.layers.round
+    :noindex:
+
+reciprocal
+----------
+..  autofunction:: paddle.v2.fluid.layers.reciprocal
+    :noindex:
+
+log
+---
+..  autofunction:: paddle.v2.fluid.layers.log
+    :noindex:
+
+square
+------
+..  autofunction:: paddle.v2.fluid.layers.square
+    :noindex:
+
+softplus
+--------
+..  autofunction:: paddle.v2.fluid.layers.softplus
+    :noindex:
+
+softsign
+---------
+..  autofunction:: paddle.v2.fluid.layers.softsign
+    :noindex:
+
+brelu
+-----
+..  autofunction:: paddle.v2.fluid.layers.brelu
+    :noindex:
+
+leaky_relu
+----------
+..  autofunction:: paddle.v2.fluid.layers.leaky_relu
+    :noindex:
+
+soft_relu
+---------
+..  autofunction:: paddle.v2.fluid.layers.soft_relu
+    :noindex:
+
+elu
+----
+..  autofunction:: paddle.v2.fluid.layers.elu
+    :noindex:
+
+relu6
+-----
+..  autofunction:: paddle.v2.fluid.layers.relu6
+    :noindex:
+
+pow
+----
+..  autofunction:: paddle.v2.fluid.layers.pow
+    :noindex:
+
+hard_shrink
+-----------
+..  autofunction:: paddle.v2.fluid.layers.hard_shrink
+    :noindex:
+
+thresholded_relu
+----------------
+..  autofunction:: paddle.v2.fluid.layers.thresholded_relu
+    :noindex:
+
+hard_sigmoid
+-------------
+..  autofunction:: paddle.v2.fluid.layers.hard_sigmoid
+    :noindex:
+
+swish
+------
+..  autofunction:: paddle.v2.fluid.layers.swish
+    :noindex:

python/paddle/v2/fluid/__init__.py

@@ -23,9 +23,22 @@
 
 Tensor = LoDTensor
 __all__ = framework.__all__ + executor.__all__ + [
-    'io', 'initializer', 'layers', 'nets', 'optimizer', 'backward',
-    'regularizer', 'LoDTensor', 'CPUPlace', 'CUDAPlace', 'Tensor', 'ParamAttr'
-    'DataFeeder', 'clip', 'DistributeTranspiler', 'memory_optimize'
+    'io',
+    'initializer',
+    'layers',
+    'nets',
+    'optimizer',
+    'backward',
+    'regularizer',
+    'LoDTensor',
+    'CPUPlace',
+    'CUDAPlace',
+    'Tensor',
+    'ParamAttr'
+    'DataFeeder',
+    'clip',
+    'DistributeTranspiler',
+    'memory_optimize',
 ]
 
 

python/paddle/v2/fluid/backward.py

@@ -3,7 +3,10 @@
 import collections
 import copy
 
-__all__ = ['append_backward', 'calc_gradient']
+__all__ = [
+    'append_backward',
+    'calc_gradient',
+]
 
 
 def _rename_arg_(op_descs, old_name, new_name, begin_idx=None, end_idx=None):

python/paddle/v2/fluid/clip.py

@@ -3,7 +3,9 @@
 from . import core
 
 __all__ = [
-    'GradientClipByValue', 'append_gradient_clip_ops', 'error_clip_callback'
+    'GradientClipByValue',
+    'append_gradient_clip_ops',
+    'error_clip_callback',
 ]
 
 

python/paddle/v2/fluid/default_scope_funcs.py

@@ -1,16 +1,16 @@
 """
 Default scope function.
 
-`Paddle` manages Scope as programming language's scope.  It just a 
-thread-local stack of Scope. Top of that stack is current scope, the bottom 
-of that stack is all scopes' parent. 
+`Paddle` manages Scope as programming language's scope.  It just a
+thread-local stack of Scope. Top of that stack is current scope, the bottom
+of that stack is all scopes' parent.
 
-Invoking `var/find_var`  can `new/find` variable in current scope. 
-Invoking `enter_local_scope/leave_local_scope` can create or destroy local 
-scope. 
+Invoking `var/find_var`  can `new/find` variable in current scope.
+Invoking `enter_local_scope/leave_local_scope` can create or destroy local
+scope.
 
-A `scoped_function` will take a `function` as input. That function will be 
-invoked in a new local scope. 
+A `scoped_function` will take a `function` as input. That function will be
+invoked in a new local scope.
 """
 
 import paddle.v2.fluid.core
@@ -19,8 +19,12 @@
 __tl_scope__ = threading.local()
 
 __all__ = [
-    'get_cur_scope', 'enter_local_scope', 'leave_local_scope', 'var',
-    'find_var', 'scoped_function'
+    'get_cur_scope',
+    'enter_local_scope',
+    'leave_local_scope',
+    'var',
+    'find_var',
+    'scoped_function',
 ]
 
 
@@ -71,7 +75,7 @@ def find_var(name):
 def scoped_function(func):
     """
     invoke `func` in new scope.
-    
+
     :param func: a callable function that will be run in new scope.
     :type func: callable
     """

python/paddle/v2/fluid/evaluator.py

@@ -4,7 +4,10 @@
 from framework import Program, unique_name, Variable, program_guard
 from layer_helper import LayerHelper
 
-__all__ = ['Accuracy', 'ChunkEvaluator']
+__all__ = [
+    'Accuracy',
+    'ChunkEvaluator',
+]
 
 
 def _clone_var_(block, var):
@@ -21,19 +24,19 @@ def _clone_var_(block, var):
 class Evaluator(object):
     """
     Base Class for all evaluators
-    
+
     Args:
-        name(str): The name of evaluator. such as, "accuracy". Used for generate 
+        name(str): The name of evaluator. such as, "accuracy". Used for generate
             temporary variable name.
-        main_program(Program, optional): The evaluator should be added to this 
+        main_program(Program, optional): The evaluator should be added to this
             main_program. Default default_main_program()
-        startup_program(Program, optional):The parameter should be added to this 
+        startup_program(Program, optional):The parameter should be added to this
             startup_program. Default default_startup_program()
-            
+
     Attributes:
-        states(list): The list of state variables. states will be reset to zero 
+        states(list): The list of state variables. states will be reset to zero
             when `reset` is invoked.
-        metrics(list): The list of metrics variables. They will be calculate 
+        metrics(list): The list of metrics variables. They will be calculate
             every mini-batch
     """
 
@@ -66,14 +69,14 @@ def eval(self, executor, eval_program=None):
 
     def create_state(self, suffix, dtype, shape):
         """
-        Create state variable. 
-        
+        Create state variable.
+
         NOTE: It is not a public API.
-        
+
         Args:
-            suffix(str): the state suffix. 
-            dtype(str|core.DataType): the state data type 
-            shape(tuple|list): the shape of state 
+            suffix(str): the state suffix.
+            dtype(str|core.DataType): the state data type
+            shape(tuple|list): the shape of state
 
         Returns: State variable
 
@@ -127,8 +130,8 @@ def eval(self, executor, eval_program=None):
 
 class ChunkEvaluator(Evaluator):
     """
-    Accumulate counter numbers output by chunk_eval from mini-batches and 
-    compute the precision recall and F1-score using the accumulated counter 
+    Accumulate counter numbers output by chunk_eval from mini-batches and
+    compute the precision recall and F1-score using the accumulated counter
     numbers.
     """
 

python/paddle/v2/fluid/framework.py

@@ -7,9 +7,15 @@
 from . import core
 
 __all__ = [
-    'Block', 'Variable', 'Program', 'Operator', 'default_startup_program',
-    'default_main_program', 'program_guard', 'switch_startup_program',
-    'switch_main_program'
+    'Block',
+    'Variable',
+    'Program',
+    'Operator',
+    'default_startup_program',
+    'default_main_program',
+    'program_guard',
+    'switch_startup_program',
+    'switch_main_program',
 ]
 
 EMPTY_VAR_NAME = core.kEmptyVarName()

python/paddle/v2/fluid/initializer.py

@@ -1,7 +1,12 @@
 import framework
 import numpy as np
 
-__all__ = ['Constant', 'Uniform', 'Normal', 'Xavier']
+__all__ = [
+    'Constant',
+    'Uniform',
+    'Normal',
+    'Xavier',
+]
 
 
 class Initializer(object):

python/paddle/v2/fluid/io.py

@@ -4,9 +4,15 @@
 from paddle.v2.fluid.framework import Program, Parameter, default_main_program, Variable
 
 __all__ = [
-    'save_vars', 'save_params', 'save_persistables', 'load_vars', 'load_params',
-    'load_persistables', "save_inference_model", "load_inference_model",
-    "get_inference_program"
+    'save_vars',
+    'save_params',
+    'save_persistables',
+    'load_vars',
+    'load_params',
+    'load_persistables',
+    'save_inference_model',
+    'load_inference_model',
+    'get_inference_program',
 ]