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基本信息

其他基本信息可参看：

安装方式

步骤1: 下载git仓库

执行命令：git clone https://github.com/torch/distro.git ~/torch --recursive

liumiaocn:~ liumiao$ git clone https://github.com/torch/distro.git ~/torch --recursiveCloning into '/Users/liumiao/torch'...remote: Enumerating objects: 1601, done....省略Submodule path 'pkg/xlua': checked out '41308fe696bf8b0892f4ad4f9857d12a87a3f75e'liumiaocn:~ liumiao$ du -k torch |tail -n179120	torchliumiaocn:~ liumiao$

步骤2: 安装依赖

执行命令：cd ~/torch; bash install-deps;

liumiaocn:~ liumiao$ cd torch/liumiaocn:torch liumiao$ lsCMakeLists.txt		clean.bat		extra			install.sh		travis_cuda_install.shLICENSE.md		clean.sh		install-deps		pkg			uninstall.batREADME.md		cmake			install-deps.bat	test.bat		update.shadmin			exe			install.bat		test.sh			win-filesliumiaocn:torch liumiao$ view install-depsliumiaocn:torch liumiao$ which bash/bin/bashliumiaocn:torch liumiao$ bash install-deps...省略Emacs Lisp files have been installed to:  /usr/local/share/emacs/site-lisp/git==> cmakeEmacs Lisp files have been installed to:  /usr/local/share/emacs/site-lisp/cmakeliumiaocn:torch liumiao$

torch提供了上述的脚本用于直接下载相关的依赖，实际上确认一下可以看到对于不同操作系统的支持，比如此处是使用macOS的方式, 可以看到如果没有安装brew，它还会替你安装一个，然后通过brew来完成所需要的依赖的安装

79 if [[ `uname` == 'Darwin' ]]; then 80     # GCC? 81     if [[ `which gcc` == '' ]]; then 82         echo "MacOS doesn't come with GCC: please install XCode and the command line tools." 83         exit 1 84     fi 85  86     # Install Homebrew (pkg manager): 87     if [[ `which brew` == '' ]]; then 88         ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 89     fi 90  91     # Install dependencies: 92     brew update 93     brew install git readline cmake wget 94     brew install libjpeg imagemagick zeromq graphicsmagick openssl 95     brew link readline --force 96     brew cask install xquartz 97     brew list -1 | grep -q "^gnuplot\$" && brew remove gnuplot 98     brew install gnuplot --with-wxmac --with-cairo --with-pdflib-lite --with-x11 --without-lua 99     brew install qt || true

步骤3: 安装torch

执行命令：./install.sh

liumiaocn:torch liumiao$ pwd/Users/liumiao/torchliumiaocn:torch liumiao$ lsCMakeLists.txt		clean.bat		extra			install.sh		travis_cuda_install.shLICENSE.md		clean.sh		install-deps		pkg			uninstall.batREADME.md		cmake			install-deps.bat	test.bat		update.shadmin			exe			install.bat		test.sh			win-filesliumiaocn:torch liumiao$ ./install.sh Prefix set to /Users/liumiao/torch/installInstalling Lua version: LUAJIT21CMake Warning (dev) in CMakeLists.txt:...省略-- Configuring done-- Generating done-- Build files have been written to: /Users/liumiao/torch/pkg/torch/buildScanning dependencies of target luaTScanning dependencies of target TH[  2%] Building C object lib/luaT/CMakeFiles/luaT.dir/luaT.c.o...省略Do you want to automatically prepend the Torch install locationto PATH and LD_LIBRARY_PATH in your /Users/liumiao/.bashrc? (yes/no)[yes] >>> yesliumiaocn:torch liumiao$ cat ~/.bashrc |tail -n1. /Users/liumiao/torch/install/bin/torch-activateliumiaocn:torch liumiao$

安装确认

步骤1: 读取环境变量

执行命令：source ~/.bashrc

liumiaocn:torch liumiao$ source ~/.bashrc liumiaocn:torch liumiao$ which th/Users/liumiao/torch/install/bin/thliumiaocn:torch liumiao$

步骤2: 确认luagit

Torch7希望自己是自包含的，这里面luagit起到了一个重要作用，luajit会同时一同被安装，所以需要进行确认

liumiaocn:torch liumiao$ which luajit/Users/liumiao/torch/install/bin/luajitliumiaocn:torch liumiao$ luajit -vLuaJIT 2.1.0-beta1 -- Copyright (C) 2005-2015 Mike Pall. http://luajit.org/ _____              _     |_   _|            | |      | | ___  _ __ ___| |__    | |/ _ \| '__/ __| '_ \   | | (_) | | | (__| | | |  \_/\___/|_|  \___|_| |_|liumiaocn:torch liumiao$

使用此版本的luajit进行动作确认

liumiaocn:torch liumiao$ luajitLuaJIT 2.1.0-beta1 -- Copyright (C) 2005-2015 Mike Pall. http://luajit.org/ _____              _     |_   _|            | |      | | ___  _ __ ___| |__    | |/ _ \| '__/ __| '_ \   | | (_) | | | (__| | | |  \_/\___/|_|  \___|_| |_|JIT: ON SSE2 SSE3 SSE4.1 fold cse dce fwd dse narrow loop abc sink fuseth> print "Hello LiuMiao"Hello LiuMiaoth>

可以看到Torch7下的luajit确实很小

liumiaocn:torch liumiao$ which luajit/Users/liumiao/torch/install/bin/luajitliumiaocn:torch liumiao$ du -k /Users/liumiao/torch/install/bin/luajit680	/Users/liumiao/torch/install/bin/luajitliumiaocn:torch liumiao$

步骤3: 确认luarocks

除此之外，luarocks作为Lua的包管理的工具也非常重要，确认其版本以及是否能够进行正常操作，后续会通过luarocks install来安装所需的依赖

liumiaocn:torch liumiao$ luarocksLuaRocks 2.3.0, a module deployment system for Lua...省略CONFIGURATION	Lua version: 5.1	Configuration files:		System: /Users/liumiao/torch/install/etc/luarocks/config.lua (ok)		User  : /Users/liumiao/.luarocks/config-5.1.lua (not found)	Rocks trees in use: 		/Users/liumiao/.luarocks		/Users/liumiao/torch/installliumiaocn:torch liumiao$ liumiaocn:torch liumiao$ luarocks list nn...省略nn   scm-1 (installed) - /Users/liumiao/torch/install/lib/luarocks/rocksnngraph   scm-1 (installed) - /Users/liumiao/torch/install/lib/luarocks/rocksnnx   0.1-1 (installed) - /Users/liumiao/torch/install/lib/luarocks/rocksliumiaocn:torch liumiao$

步骤4: 确认th

Torch可以通过交互式的th进行操作，确认其是否能够正常进入

liumiaocn:torch liumiao$ th   ______             __   |  Torch7  /_  __/__  ________/ /   |  Scientific computing for Lua.   / / / _ \/ __/ __/ _ \  |  Type ? for help  /_/  \___/_/  \__/_//_/  |  https://github.com/torch                           |  http://torch.ch 	th>

总结

这篇文章介绍了Torch官方的安装方式，并以MacOS为例进行了memo。

参考内容

http://torch.ch/docs/getting-started.html

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