根据文档走自定义算子遇上问题，越看文档越困惑，找不出问题，恳请官方支持。

以添加自定义激活函数SiLU为例子，流程如下，

CNPlugin_root = /workspace/volume/private/sdk/Cambricon-CNPlugin-MLU270

neuware_root = /workspace/volume/private/sdk/cambricon_pytorch/neuware

pytorch_root = /workspace/volume/private/sdk/cambricon_pytorch/pytorch

(1) 按照文档添加SiLU的cpu/mlu实现，plugin_silu.cc plugin_silu_cpu.cc  plugin_silu_cpu.h  plugin_silu_kernel.h  plugin_silu_kernel.mlu，添加路径在{CNPlugin_root}/pluginops/plugin_silu_op文件夹，运行{CNPlugin_root}/build_cnplugin.sh编译脚本，能够在Makefile里面看到以下字段，表示能找到并编译源码

@echo "... pluginops/plugin_silu_op/plugin_silu.o"

@echo "... pluginops/plugin_silu_op/plugin_silu.i"

@echo "... pluginops/plugin_silu_op/plugin_silu.s"

@echo "... pluginops/plugin_silu_op/plugin_silu_cpu.o"

@echo "... pluginops/plugin_silu_op/plugin_silu_cpu.i"

echo "... pluginops/plugin_silu_op/plugin_silu_cpu.s"

(2) 因为CNPlugin编译完不知道怎么install，所以手动复制头文件和.so

cp {CNPlugin_root}/common/include/cnplugin.h {neuware_root}/include

cp {CNPlugin_root}/build/libcnplugin.so  {neuware_root}/lib64

(3) 参考yolov5的教程，在{pytorch_root}/src/catch/torch_mlu/tools/mlu_functions.yaml声明算子，在{pytorch_root}/src/catch/torch_mlu/csrc/aten/operators更新op_methods.cpp  op_methods.h添加cpu实现，添加warpper和kernel

(4) 编译pytorch，运行bash {pytorch_root}/../configure_pytorch.sh

(5) 重新启动虚拟环境

在python3里面运行torch.ops.torch_mlu.SiLU会报错RuntimeError: No such operator torch_mlu::SiLU