auto generate USE_OP() in pybind.cc #4101
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typhoonzero
reviewed
Sep 14, 2017
doc/howto/dev/new_op_cn.md
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| USE_NO_KENREL_OP(recurrent); | ||
| ``` | ||
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| 编译器 [paddle/operators/CMakeLists.txt](https://github.com/PaddlePaddle/Paddle/blob/develop/paddle/operators/CMakeLists.txt) 会自动为Op绑定Python，生成[`paddle/pybind/pybind.h](https://github.com/PaddlePaddle/Paddle/blob/develop/paddle/pybind/pybind.h)，绑定规则如下： |
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这里是实现的细节了，感觉这些内容可以放到一个单独的md文件里，说明如何完成构建系统的。在这个开发文档中只需要在前面某个位置简单说明：“只需要paddle构建系统会根据文件名(*_op.h, *_op.cc, *_op.cu)自动构建op何其对应的python扩展。“
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| - 为每个Op创建单独的`*_op.h`（如有）、`*_op.cc`和`*_op.cu`（如有）。不允许一个文件中包含多个Op，这将会导致编译出错。 | ||
| - 注册Op时的类型名，需要和该Op的名字一样。即不允许在`A_op.cc`里面，注册`REGISTER_OP(B, ...)`等，这将会导致单元测试出错。 | ||
| - 如果Op没有实现GPU Kernel，请不要创建空的`*_op.cu`，这将会导致单元测试出错。 |
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可能有的op需要用一些公用的函数，但是也不是math库，能否创建一些非*_op.h格式的文件，然后这些op依赖这些文件呢？
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是可以创建一些非*_op的文件，比如目前的gather.h头文件，会补充进文档中，谢谢提醒。
luotao1
commented
Sep 14, 2017
doc/howto/dev/new_op_cn.md
Outdated
| USE_NO_KENREL_OP(recurrent); | ||
| ``` | ||
|
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||
| 编译器 [paddle/operators/CMakeLists.txt](https://github.com/PaddlePaddle/Paddle/blob/develop/paddle/operators/CMakeLists.txt) 会自动为Op绑定Python，生成[`paddle/pybind/pybind.h](https://github.com/PaddlePaddle/Paddle/blob/develop/paddle/pybind/pybind.h)，绑定规则如下： |
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| - 为每个Op创建单独的`*_op.h`（如有）、`*_op.cc`和`*_op.cu`（如有）。不允许一个文件中包含多个Op，这将会导致编译出错。 | ||
| - 注册Op时的类型名，需要和该Op的名字一样。即不允许在`A_op.cc`里面，注册`REGISTER_OP(B, ...)`等，这将会导致单元测试出错。 | ||
| - 如果Op没有实现GPU Kernel，请不要创建空的`*_op.cu`，这将会导致单元测试出错。 |
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fix #4055