.. SPDX-FileCopyrightText: 2020-2021 Intel Corporation
..
.. SPDX-License-Identifier: CC-BY-4.0

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GELUBackprop
------------

**Versioned name**: *GELUBackprop-1*

**Category**: *Activation*

**Short description**: *GELUBackprop* computes gradient for GELU

**Inputs**:

* **1**: ``input_forward`` - original input tensor of GELU op. **Required.**

  * **Type**: T

* **2**: ``output_delta`` - the gradient tensor with respect to the output of
  GELU. **Required.**

  * **Type**: T

**Outputs**

* **1**: ``input_delta`` - the gradient tensor with respect to the input of
  GELU.
 
  * **Type**: T


**Types**:

* **T**: f32, f16, bf16.
* **Note**: Inputs and outputs have the same data type denoted by *T*. For
  example, if input is f32 tensor, then all other tensors have f32 data type.