【Hackathon 5th No.26】为 Paddle 新增 diagonal_scatter API

docs/api/paddle/Overview_cn.rst

@@ -387,6 +387,7 @@ tensor 元素操作相关（如：转置，reshape 等）
     " :ref:`paddle.view_as <cn_api_paddle_view_as>` ", "使用 other 的 shape，返回 x 的一个 view Tensor"
     " :ref:`paddle.unfold <cn_api_paddle_unfold>` ", "返回 x 的一个 view Tensor。以滑动窗口式提取 x 的值"
     " :ref:`paddle.masked_fill <cn_api_paddle_masked_fill>` ", "根据 mask 信息，将 value 中的值填充到 x 中 mask 对应为 True 的位置。"
+    " :ref:`paddle.diagonal_scatter <cn_api_paddle_diagonal_scatter>` ", "根据给定的轴 axis 和偏移量 offset，将张量 y 的值填充到张量 x 中"
     " :ref:`paddle.index_fill <cn_api_paddle_index_fill>` ", "沿着指定轴 axis 将 index 中指定位置的 x 的值填充为 value"
 
 .. _tensor_manipulation_inplace:

docs/api/paddle/Tensor/Overview_en.rst

@@ -277,3 +277,4 @@ Methods
     vander
     hypot
     hypot_
+    diagonal_scatter

docs/api/paddle/Tensor_cn.rst

@@ -3060,3 +3060,13 @@ masked_fill_(x, mask, value, name=None)
 :::::::::
 
 Inplace 版本的 :ref:`cn_api_paddle_masked_fill` API，对输入 `x` 采用 Inplace 策略。
+
+diagonal_scatter(x, y, offset=0, axis1=0, axis2=1, name=None)
+:::::::::
+根据给定的轴 axis 和偏移量 offset，将张量 y 的值填充到张量 x 中。
+
+返回：张量 y 填充到张量 x 中的结果。
+
+返回类型：Tensor
+
+请参考 :ref:`cn_api_paddle_diagonal_scatter`

docs/api/paddle/diagonal_scatter_cn.rst

@@ -0,0 +1,37 @@
+.. _cn_api_paddle_diagonal_scatter:
+
+diagonal_scatter
+-------------------------------
+
+.. py:function:: paddle.diagonal_scatter(x, y, offset=0, axis1=0, axis2=1, name=None)
+
+
+根据参数 ``offset``、``axis1``、``axis2``，将张量 ``y`` 填充到张量 ``x`` 的对应位置。
+
+这个函数将会返回一个新的 ``Tensor``。
+
+参数 ``offset`` 确定从指定的二维平面中获取对角线的位置：
+
+    - 如果 offset = 0，则嵌入主对角线。
+    - 如果 offset > 0，则嵌入主对角线右上的对角线。
+    - 如果 offset < 0，则嵌入主对角线左下的对角线。
+
+参数
+::::::::::::
+
+    - **x** (Tensor) - 输入张量，张量的维度至少为 2 维，支持 float16、float32、float64、bfloat16、uint8、int8、int16、int32、int64、bool、complex64、complex128 数据类型。
+    - **y** (Tensor) - 嵌入张量，将会被嵌入到输入张量中，支持 float16、float32、float64、bfloat16、uint8、int8、int16、int32、int64、bool、complex64、complex128 数据类型。
+    - **offset** (int, 可选) - 从指定的二维平面嵌入对角线的位置，默认值为 0，即主对角线。
+    - **axis1** (int, 可选) - 对角线的第一个维度，默认值为 0。
+    - **axis2** (int, 可选) - 对角线的第二个维度，默认值为 1。
+    - **name** (str，可选) - 具体用法请参见 :ref:`api_guide_Name`，一般无需设置，默认值为 None。
+
+返回
+::::::::::::
+``Tensor``，返回一个根据给定的轴 ``axis`` 和偏移量 ``offset``，将张量 ``y`` 填充到张量 ``x`` 对应位置的新 ``Tensor``。
+
+
+代码示例
+::::::::::::
+
+COPY-FROM: paddle.diagonal_scatter

docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.diagonal_scatter.md

@@ -0,0 +1,25 @@
+## [ 仅参数名不一致 ] torch.Tensor.diagonal_scatter
+
+### [torch.Tensor.diagonal_scatter](https://pytorch.org/docs/stable/generated/torch.Tensor.diagonal_scatter.html?highlight=diagonal_scatter#torch.Tensor.diagonal_scatter)
+
+```python
+torch.Tensor.diagonal_scatter(input, src, offset=0, dim1=0, dim2=1)
+```
+
+### [paddle.Tensor.diagonal_scatter](https://www.paddlepaddle.org.cn/documentation/docs/zh/develop/api/paddle/Tensor_cn.html#diagonal-scatter-x-y-offset-0-axis1-0-axis2-1-name-none)
+
+```python
+paddle.Tensor.diagonal_scatter(x, y, offset=0, axis1=0, axis2=1)
+```
+
+两者功能一致且参数用法一致，仅参数名不一致，具体如下：
+
+### 参数映射
+
+| PyTorch | PaddlePaddle | 备注                                               |
+|---------|--------------| -------------------------------------------------- |
+| input     | x          | 输入张量，被嵌入的张量，仅参数名不一致。    |
+| src     | y          | 用于嵌入的张量，仅参数名不一致。    |
+| offset     | offset          | 从指定的二维平面嵌入对角线的位置，默认值为 0，即主对角线。    |
+| dim1     | axis1          | 对角线的第一个维度，默认值为 0，仅参数名不一致。    |
+| dim2     | axis2          | 对角线的第二个维度，默认值为 1，仅参数名不一致。    |

docs/guides/model_convert/convert_from_pytorch/api_difference/ops/torch.diagonal_scatter.md

@@ -0,0 +1,33 @@
+## [ 仅参数名不一致 ] torch.diagonal_scatter
+
+### [torch.diagonal_scatter](https://pytorch.org/docs/stable/generated/torch.diagonal_scatter.html?highlight=diagonal_scatter#torch.diagonal_scatter)
+
+```python
+torch.diagonal_scatter(input,
+                       src,
+                       offset=0,
+                       dim1=0,
+                       dim2=1)
+```
+
+### [paddle.diagonal_scatter](https://www.paddlepaddle.org.cn/documentation/docs/zh/develop/api/paddle/diagonal_scatter_cn.html)
+
+```python
+paddle.diagonal_scatter(x,
+                        y,
+                        offset=0,
+                        axis1=0,
+                        axis2=1)
+```
+
+两者功能一致且参数用法一致，仅参数名不一致，具体如下：
+
+### 参数映射
+
+| PyTorch | PaddlePaddle | 备注                                               |
+|---------|--------------| -------------------------------------------------- |
+| <font color='red'> input </font>     | <font color='red'> x </font>          | 输入张量，被嵌入的张量，仅参数名不一致。    |
+| <font color='red'> src </font>     | <font color='red'> y </font>          | 用于嵌入的张量，仅参数名不一致。    |
+| <font color='red'> offset </font>     | <font color='red'> offset </font>          | 从指定的二维平面嵌入对角线的位置，默认值为 0，即主对角线。    |
+| <font color='red'> dim1 </font>     | <font color='red'> axis1 </font>          | 对角线的第一个维度，默认值为 0，仅参数名不一致。    |
+| <font color='red'> dim2 </font>     | <font color='red'> axis2 </font>          | 对角线的第二个维度，默认值为 1，仅参数名不一致。    |

docs/guides/model_convert/convert_from_pytorch/pytorch_api_mapping_cn.md

@@ -290,10 +290,10 @@
 | REFERENCE-MAPPING-ITEM(`torch.frexp`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/ops/torch.frexp.md) |
 | REFERENCE-MAPPING-ITEM(`torch.nanmean`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/ops/torch.nanmean.md) |
 | REFERENCE-MAPPING-ITEM(`torch.take_along_dim`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/ops/torch.take_along_dim.md) |
+| REFERENCE-MAPPING-ITEM(`torch.diagonal_scatter`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/ops/torch.diagonal_scatter.md) |
 | NOT-IMPLEMENTED-ITEM(`torch.geqrf`, https://pytorch.org/docs/stable/generated/torch.geqrf.html?highlight=geqrf#torch.geqrf) |
 | NOT-IMPLEMENTED-ITEM(`torch.bitwise_right_shift`, https://pytorch.org/docs/stable/generated/torch.bitwise_right_shift.html#torch.bitwise_right_shift) |
 | NOT-IMPLEMENTED-ITEM(`torch.is_conj`, https://pytorch.org/docs/stable/generated/torch.is_conj.html#torch.is_conj) |
-| NOT-IMPLEMENTED-ITEM(`torch.diagonal_scatter`, https://pytorch.org/docs/stable/generated/torch.diagonal_scatter.html#torch.diagonal_scatter) |
 | NOT-IMPLEMENTED-ITEM(`torch.select_scatter`, https://pytorch.org/docs/stable/generated/torch.select_scatter.html#torch.select_scatter) |
 | NOT-IMPLEMENTED-ITEM(`torch.slice_scatter`, https://pytorch.org/docs/stable/generated/torch.slice_scatter.html#torch.slice_scatter) |
 | NOT-IMPLEMENTED-ITEM(`torch.scatter_reduce`, https://pytorch.org/docs/stable/generated/torch.scatter_reduce.html#torch.scatter_reduce) |
@@ -790,7 +790,7 @@
 | 167 |  [torch.Tensor.any](https://pytorch.org/docs/stable/generated/torch.Tensor.any.html?highlight=torch+tensor+any#torch.Tensor.any) |  [paddle.Tensor.any](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#any-axis-none-keepdim-false-name-none)  |    功能一致, 参数不一致 , [差异对比](https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.any.md)  |
 | 168 |  [torch.Tensor.bitwise_right_shift](https://pytorch.org/docs/stable/generated/torch.Tensor.bitwise_right_shift.html#torch.Tensor.bitwise_right_shift) |  | 功能缺失        |
 | 169 |  [torch.Tensor.is_conj](https://pytorch.org/docs/stable/generated/torch.Tensor.is_conj.html#torch.Tensor.is_conj)  |  | 功能缺失        |
-| 170 |  [torch.Tensor.diagonal_scatter](https://pytorch.org/docs/stable/generated/torch.Tensor.diagonal_scatter.html#torch.Tensor.diagonal_scatter) |  | 功能缺失        |
+| 170 |  [torch.Tensor.diagonal_scatter](https://pytorch.org/docs/stable/generated/torch.Tensor.diagonal_scatter.html#torch.Tensor.diagonal_scatter)  | [paddle.Tensor.diagonal_scatter](https://www.paddlepaddle.org.cn/documentation/docs/zh/develop/api/paddle/Tensor_cn.html#diagonal-scatter-x-y-offset-0-axis1-0-axis2-1-name-none) |    功能完全一致，仅参数名不一致  |
 | 171 |  [torch.Tensor.scatter_reduce](https://pytorch.org/docs/stable/generated/torch.Tensor.scatter_reduce.html#torch.Tensor.scatter_reduce) |  | 功能缺失        |
 | 172 |  [torch.Tensor.select_scatter](https://pytorch.org/docs/stable/generated/torch.Tensor.select_scatter.html#torch.Tensor.select_scatter) |  | 功能缺失        |
 | 173 |  [torch.Tensor.slice_scatter](https://pytorch.org/docs/stable/generated/torch.Tensor.slice_scatter.html#torch.Tensor.slice_scatter) |  | 功能缺失        |
@@ -1097,9 +1097,9 @@
 | REFERENCE-MAPPING-ITEM(`torch.Tensor.less`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.less.md) |
 | REFERENCE-MAPPING-ITEM(`torch.Tensor.all`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.all.md) |
 | REFERENCE-MAPPING-ITEM(`torch.Tensor.any`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.any.md) |
+| REFERENCE-MAPPING-ITEM(`torch.Tensor.diagonal_scatter`, https://github.com/PaddlePaddle/docs/tree/develop/docs/guides/model_convert/convert_from_pytorch/api_difference/Tensor/torch.Tensor.diagonal_scatter.md) |
 | NOT-IMPLEMENTED-ITEM(`torch.Tensor.bitwise_right_shift`, https://pytorch.org/docs/stable/generated/torch.Tensor.bitwise_right_shift.html#torch.Tensor.bitwise_right_shift) |
 | NOT-IMPLEMENTED-ITEM(`torch.Tensor.is_conj`, https://pytorch.org/docs/stable/generated/torch.Tensor.is_conj.html#torch.Tensor.is_conj) |
-| NOT-IMPLEMENTED-ITEM(`torch.Tensor.diagonal_scatter`, https://pytorch.org/docs/stable/generated/torch.Tensor.diagonal_scatter.html#torch.Tensor.diagonal_scatter) |
 | NOT-IMPLEMENTED-ITEM(`torch.Tensor.scatter_reduce`, https://pytorch.org/docs/stable/generated/torch.Tensor.scatter_reduce.html#torch.Tensor.scatter_reduce) |
 | NOT-IMPLEMENTED-ITEM(`torch.Tensor.select_scatter`, https://pytorch.org/docs/stable/generated/torch.Tensor.select_scatter.html#torch.Tensor.select_scatter) |
 | NOT-IMPLEMENTED-ITEM(`torch.Tensor.slice_scatter`, https://pytorch.org/docs/stable/generated/torch.Tensor.slice_scatter.html#torch.Tensor.slice_scatter) |