SqrtBackward {#dev_guide_op_sqrtbackward}
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## General

SqrtBackward operation computes gradient for Sqrt.

## Operation attributes

Attribute Name | Description | Value Type | Supported Values | Required or Optional
-- | -- | -- | -- | --
[use_dst](@ref dnnl::graph::op::attr::use_dst) | If true, use `dst` of Sqrt operation to calculate the gradient. Otherwise, use `src`. | bool | `true` (default), `false` | Optional

## Execution arguments

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

### Inputs

Index | Argument Name | Required or Optional
-- | -- | --
0 | `src` / `dst` | Required
1 | `diff_dst` | Required

### Outputs

Index | Argument Name | Required or Optional
-- | -- | --
0 | `diff_src` | Required

## Supported data types

SqrtBackward operation supports the following data type combinations.

Src | Diff_dst | Diff_src
-- | -- | --
f32 | f32 | f32
f16 | f16 | f16
bf16 | bf16 | bf16