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# <div aligh="center"><strong>PyTorch Spline Conv</strong></div>
## 简介
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Pytorch Spline Conv 是基于PyTorch框架的一个软件包,用于实现图卷积神经网络中的Spline卷积操作。图卷积神经网络是一种能够在图结构数据上进行深度学习的模型,适用于节点分类、图分类和图生成等任务。DAS软件栈中的PyTorch Spline Conv 版本,不仅保证了该组件 核心功能在DCU加速卡的可用性,还针对DCU特有的硬件架构进行了深度定制优化,这使得开发者能够以极低的成本,轻松实现应用程序在DCU加速卡上的快速迁移和性能提升。目前已适配支持Pytorch1.13,Pyotrch2.1,Pytorch2.3。
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### 使用pip方式安装
pytorch-spline-conv whl包下载目录:[http://10.6.10.68:8000/customized/torch-spline-conv/dtk2310](http://10.6.10.68:8000/customized/torch-spline-conv/dtk2310). 目前只提供有python3.8版本的安装包
```shell
pip install torch_spline_conv* (下载的torch_spine_conv的whl包)
```
### 使用源码编译方式安装

#### 编译环境准备
- 安装相关依赖
```shell
pip install numpy
pip install 'urllib3==1.26.14'
pip install pytest
pip insta;; wheel
```
- 在首页 | 光合开发者社区下载 det23.10 解压在 /opt/ 路径下,并建立软连接,例如
```shell
cd /opt
wget http://10.6.10.68:8000/dtk-release/dtk23.10/CentOS7.6/DTK-23.10-CentOS7.6-x86_64.tar.gz
tar -zxvf DTK-23.10-CentOS7.6-x86_64.tar.gz
ln -s dtk-23.10 dtk
source /opt/dtk/env.sh
```

- 安装pytorch. pytorch whl包下载目录: [http://10.6.10.68:8000/debug/pytorch/dtk23.10/hipify](http://10.6.10.68:8000/debug/pytorch/dtk23.10/hipify). 根据需求下载对应的版本,安装如下:
```shell
pip install torch* (下载的torch的whl包)
```
#### 源码下载编译安装
```shell
git clone -b 1.2.1-release http://developer.hpccube.com/codes/aicomponent/torch-spline-conv.git
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python pymap_script.py /path/to/torch-spline-conv
cd torch-spline-conv
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python setup.py bdist_wheel
pip install dist/*.whl
```

## 单侧
```shell
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cd torch-spline-conv
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python setup.py test
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```

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## Known Issue
完成安装进行单测时,会报错ImportError: Could not find module '_version_cpu' ~,在根目录/下查找一下,然后把库文件目录添加一下软链接即可。
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```
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find / -name "_version_cpu.so"
cd /torch_spline_conv/torch_spline_conv
ln -s /usr/local/lib/python3.8/site-packages/torch_spline_conv/* .
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```

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## 参考资料
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[https://github.com/rusty1s/pytorch_spline_conv](https://github.com/rusty1s/pytorch_spline_conv)