.. index:: pair: page; Elu
.. _doxid-dev_guide_op_elu:

Elu
===

General
~~~~~~~

Elu operation applies following formula on every element of :math:`\src` tensor (the variable names follow the standard :ref:`Naming Conventions <doxid-dev_guide_conventions>`):

.. math::

	dst = \begin{cases} \alpha(e^{src} - 1) & \text{if}\ src < 0 \\ src & \text{if}\ src \ge 0 \end{cases}

Operation attributes
~~~~~~~~~~~~~~~~~~~~

==================================================================================================================  ===============================  ====  =================================  =========  
Attribute Name                                                                                                      Descr                            
==================================================================================================================  ===============================  ====  =================================  =========  
:ref:`alpha <doxid-classdnnl_1_1graph_1_1op_1ac7650c0c15849338f9c558f53ce82684a2c1743a391305fbf367df8e4f069f9f9>`   Scale for the negative factor.   f32   Arbitrary non-negative f32 value   Required   
==================================================================================================================  ===============================  ====  =================================  =========

Execution arguments
~~~~~~~~~~~~~~~~~~~

The inputs and outputs must be provided according to below index order when constructing an operation.

Inputs
------

======  ========  =========  
Index   Argu      
======  ========  =========  
0       ``src``   Required   
======  ========  =========

Outputs
-------

======  ========  =========  
Index   Argu      
======  ========  =========  
0       ``dst``   Required   
======  ========  =========

Supported data types
~~~~~~~~~~~~~~~~~~~~

Elu operation supports the following data type combinations.

=====  =====  
Src    D      
=====  =====  
f32    f32    
bf16   bf16   
f16    f16    
=====  =====

