# DGL

## 安装
安装DGL,你需要
+ dtk 22.10
+ Python 3.9
其余版本需源码安装

### 使用pip安装
dgl whl包下载目录：[https://cancon.hpccube.com:65024/4/main/dgl/dtk22.10](https://cancon.hpccube.com:65024/4/main/dgl/dtk22.10)

```shell
pip install dgl* (下载的dgl的whl包)
```

### 使用源码安装
#### 编译环境准备
```shell
pip install setuptools==59.5.0 wheel
```

#### 编译安装
```shell
git clone -b 0.9.1-dgl https://developer.hpccube.com/codes/aicomponent/dgl
cd dgl
mkdir build && cd build
source $ROCM_PATH/env.sh
cmake -DUSE_HIP=ON -DCMAKE_BUILD_TYPE=Release ..
make -j16
cd ../python
python setup.py bdist_wheel 
pip install dist/dgl*
```


## 参考
- [README_ORIGIN](README_ORIGIN.md)

## 适配HIP移植修改
```shell
1. cmake相关
    修改CMakeLists.txt，增加USE_HIP编译控制
    新增cmake/modules/ROCM.cmake，参考cmake/modules/CUDA.cmake进行编译配置
    增加CUDART_VERSION相关宏参数

2. 源码修改
添加宏判断，设备上不支持iostream
    src/array/selector.h:34

hip结构体hipPointerAttribute_t适配
    src/runtime/cuda/cuda_device_api.cc:251

添加显式基类限定词
    src/runtime/cuda/cuda_hashtable.cu:60
    src/runtime/cuda/cuda_hashtable.cu:104
    src/runtime/cuda/cuda_hashtable.cu:110

添加对CUDART_VERSION相关的条件判断flag
    src/array/cuda/spmm_hetero.cu:59
    src/array/cuda/spmm_hetero.cu:133

注释CUB_VERSION相关的static_assert检查
    src/array/cuda/rowwise_sampling_prob.cu:20

注释CUDART_VERSION相关的static_assert检查
    src/array/cuda/atomic.cuh:83

增加__HIPCC__宏定义的检查
    include/dgl/array_iterator.h:9

```