Taichi编译环境搭建-蒲公英云

Taichi编译环境搭建

一、Taichi编译环境搭建

1.1、软件要求：

以下是在虚拟机中安装Ubuntu的步骤。

下载虚拟机软件VirtualBox：https://www.virtualbox.org/

下载Ubuntu系统（中科大镜像站）：https://mirrors.ustc.edu.cn/ 版本：20.04（amd64, desktop LiveCD）

1.2、安装虚拟机就是按照步骤来就行

1.3、安装Ubuntu也是按照步骤来就行

1.4、更换清华镜像：

更改etc/apt/sources.list文件： sudo gedit sources.list

在[https://mirrors.tuna.tsinghu a.edu.cn/help/ubuntu/](https://mirrors.tuna.tsinghu a.edu.cn/help/ubuntu/)中根据Ubuntu的不同版本添加不同配置

20.04版本如下：

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

更改配置后需要更新：sudo apt-get update

2、Taichi基础环境配置

2.1、Python以及Python依赖的安装

python3 -m pip install --user setuptools astpretty astor pybind11 Pillow dill 
python3 -m pip install --user pytest pytest-rerunfailures pytest-xdist yapf 
python3 -m pip install --user numpy GitPython coverage colorama autograd

2.2、安装并更换编译器为clang（version>7）

#安裝
sudo apt install libtinfo-dev clang-81
#更改編譯器
sudo update-alternatives --config c++ 
sudo update-alternatives --config cc

2.3、构建LLVM

#下载LLVM文件 
wget https://github.com/llvm/llvm-project/releases/download/llvmorg10.0.0/llvm-10.0.0.src.tar.xz 
#解压 
tar xvJf llvm-10.0.0.src.tar.xz
cd llvm-10.0.0.src 
#新建build文件夹 
mkdir build 
cd build
cmake .. -DLLVM_ENABLE_RTTI:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=OFF DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD="X86;NVPTX" DLLVM_ENABLE_ASSERTIONS=ON 
# If you are building on NVIDIA Jetson TX2, use DLLVM_TARGETS_TO_BUILD="ARM;NVPTX"
make -j 8  (构建时长大约为30分钟)
sudo make install
# Check your LLVM installation 
llvm-config --version  
# You should get 10.0.0

3、开发者配置

3.1、给配置文件末尾添加Taichi路径（vim ~/.bashrc）

// 下载Taichi源码存放的位置 
export TAICHI_REPO_DIR=/path/to/taichi  
# Path to your taichi repository 
export PYTHONPATH=$TAICHI_REPO_DIR/python:$PYTHONPATH 
export PATH=$TAICHI_REPO_DIR/bin:$PATH 
# export CXX=/path/to/clang 
# Uncomment if you encounter issue about compiler in the next step. 
# export PATH=/opt/llvm/bin:$PATH 
# Uncomment if your llvm or clang is installed in /opt

3.2、加载配置文件

source ~/.bashrc

3.3、编译Taichi,在build文件夹下执行’‘python3 -m taichi test’’（约5分钟）

git clone https://github.com/taichi-dev/taichi --depth=1 --branch=master 
#Taichi源码存放的位置要与.bashrc指定的位置相同 
cd taichi 
git submodule update --init --recursive --depth=1   # 必不可少
mkdir build 
cd build 
cmake .. 
# On Linux / OS X, if you do not set clang as the default compiler 
# use the line below: 
# cmake .. -DCMAKE_CXX_COMPILER=clang 
# 
# Alternatively, if you would like to set clang as the default compiler # On Unix CMake honors environment variables $CC and $CXX upon deciding which C and C++ compilers to use 
make -j 8     
#修改源码后需要重新cmake、make即可生效，至此Taichi的编译环境安装成功。