From: @mind-lh
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @hwhewei
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @jiahongqian
Reviewed-by: @ljl0711,@wang_zi_dong,@ljl0711
Signed-off-by: @wang_zi_dong

From: @zhaojichen
Reviewed-by: @c_34,@oacjiewen
Signed-off-by: @c_34

free

Add L2NormalizeGradCPUKernel 修改测试用例误差判断方式

Add L2NormalizeGradCPUKernel 注释调试信息

Add L2NormalizeGradCPUKernel 修改反向算子的计算公式

Add L2NormalizeGradCPUKernel 去掉 float16 的注册

Add L2NormalizeGradCPUKernel 使用相对误差

Add L2NormalizeGradCPUKernel 更新反向公式

Add L2NormalizeGradCPUKernel 删除调试信息

清除告警

Add L2NormalizeGradCPUKernel 添加测试用例

Add L2NormalizeGradCPUKernel 删除多余的函数

Add L2NormalizeGradCPUKernel 修改注释中的时间

Add L2NormalizeGradCPUKernel 格式化代码

Add L2NormalizeGradCPUKernel 格式化代码，修改 cpplint 问题

Add L2NormalizeGradCPUKernel 修改 cpplint，pylint 问题

Add L2NormalizeGradCPUKernel 修改求导函数，与 GPU 和 Ascend 保持一致。
修改后的公式在数学意义上有问题，但已经和武雪剑对齐，认为没有影响，没有必要要求 GPU 和 Ascend 修改代码。

Add L2NormalizeGradCPUKernel 精简测试用例

From: @yuzhenhua666
Reviewed-by: @wuxuejian,@c_34,@oacjiewen
Signed-off-by: @c_34

From: @HulkTang
Reviewed-by: @kisnwang,@chujinjin
Signed-off-by: @kisnwang

From: @zyli2020
Reviewed-by: @wilfchen,@cristoval
Signed-off-by: @cristoval

From: @john_tzanakakis
Reviewed-by: @yelihua,@lixiaohui33
Signed-off-by: @lixiaohui33

From: @r1chardf1d0
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @woshixiaoli
Reviewed-by: @liangchenghui,@chujinjin
Signed-off-by: @liangchenghui

From: @chenlei_autodiff
Reviewed-by: 
Signed-off-by:

From: @wenfangpei
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

Fix 'Useless super delegation in method __init__';
Also fix class naming problem.

From: @yuzhenhua666
Reviewed-by: @oacjiewen,@c_34
Signed-off-by: @c_34

From: @wilfchen
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

From: @zhoufeng54
Reviewed-by: @kisnwang,@jjfeing
Signed-off-by: @jjfeing

From: @zhoufeng54
Reviewed-by: @kisnwang,@jjfeing
Signed-off-by: @jjfeing

From: @wilfchen
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

From: @lvchangquan
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @wuxuejian
Reviewed-by: @oacjiewen,@liangchenghui
Signed-off-by: @liangchenghui

From: @woshixiaoli
Reviewed-by: @zh_qh,@hwhewei
Signed-off-by: @zh_qh

From: @liangzhibo
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @hwjiaorui
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @ginfung
Reviewed-by: @zh_qh,@hwhewei
Signed-off-by: @zh_qh

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

From: @youui
Reviewed-by: @liangchenghui,@zhoufeng54
Signed-off-by: @liangchenghui

From: @zhao_ting_v
Reviewed-by: @oacjiewen,@wuxuejian
Signed-off-by: @wuxuejian

From: @jonyguo
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @liyong126
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @xiefangqi
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @Margaret_wangrui
Reviewed-by: @ginfung,@ginfung,@zh_qh
Signed-off-by: @zh_qh