PyTorch深度学习入门笔记（一）PyTorch环境配置及安装

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<p>@</p><p></p>
4 R5 H7 t: O' g<p><strong>OS：</strong> ubuntu 20.04（虚拟机）</p>
<h1 id="一工具安装">一、工具安装</h1>
<h2 id="11-anaconda-安装">1.1 Anaconda 安装</h2>
: v% N9 m) m0 g<p>首先安装Anaconda ,我是去<a  href="https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/">清华大学镜像站</a>下载，版本为<br>
9 ?+ O# h( W! V: S! y1 I: _<code>Anaconda3-5.2.0-Linux-x86_64.sh</code><br>
* B) K3 V8 F5 H3 n8 }9 m8 S参考<a  href="https://blog.csdn.net/m0_50117360/article/details/108403586?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522164187185416780357286476%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=164187185416780357286476&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_positive~default-1-108403586.pc_search_insert_ulrmf&utm_term=ubuntu20.04%E5%AE%89%E8%A3%85anaconda&spm=1018.2226.3001.4187">这篇CSDN博客</a>安装好。<br>
5 _6 P6 z6 ^4 s安装成功测试：<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102427806-11701860.png" ><br>
8 F0 F2 E2 s9 Z首先创建一个虚拟环境：</p>
<pre><code class="language-c">conda create -n pytorch python=3.6
9 B8 A; _- X5 A/ p! T* u</code></pre>
2 Y" q8 C- [; A8 M0 e- B7 ?3 u<p><img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102428555-1044758357.png" ><br>
输入</p>
2 Y: U. v9 r6 j# z$ W% G<pre><code class="language-c">source activate pytorch
</code></pre>
<p>激活环境</p>
<h2 id="12-pytorch安装">1.2 Pytorch安装</h2>
<p>进入<a  href="https://pytorch.org/get-started/locally/">官网</a>,选择合适版本安装，因为我是用的ubuntu20.04虚拟机，不支持CUDA，所以选择了CPU：<br>
3 z) P9 a! s" ~0 g  M<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102429086-588112728.png" ></p>
4 j3 }; X7 }( w( d5 p% a, {- q<p>选择合适版本并复制Run this Command:即可进行安装(不推荐使用方法，因为下载速度很慢)。<br>
安装过程可能比较缓慢，可以用以下命令（推荐）‘</p>
+ Q! l; ]6 ~* X3 E4 f<pre><code class="language-c">pip3 --default-timeout=1000 install --index-url https://mirrors.aliyun.com/pypi/simple torch==1.10.1+cpu torchvision==0.11.2+cpu torchaudio==0.10.1+cpu -f https://download.pytorch.org/whl/cpu/torch_stable.html
0 z- i8 t6 i; ^+ V6 h+ l/ h$ l! Q</code></pre>
<p>注意：先进入所创建的 Pytorch虚拟环境，再输入指令进行安装。<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102429678-1764231985.png" ><br>
6 U! G2 Y! d% \  [# H安装好后进行测试：<br>
' {. ]4 u4 @  D1 V<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102430213-1770020069.png" ></p>
8 Y( b2 N2 q  k" N* O: Q<h1 id="二编辑器安装">二、编辑器安装</h1>
5 W6 Z/ b) Y5 c0 e1 b4 ?<h2 id="21-pycharm安装">2.1 Pycharm安装</h2>
<p>官方下载地址是：<a  href="https://www.jetbrains.com/pycharm/download/#section=linux">https://www.jetbrains.com/pycharm/download/#section=linux</a><br>
选择免费的社区版安装：<br>
9 r( |' U* L8 d& ]& a<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102431391-2074783399.png" ><br>
下载下来就是解压，放到一个合适的文件夹下，然后添加环境变量</p>
/ x3 P6 v5 w% U+ _- i<pre><code class="language-bash">gedit .bashrc
  c' V# M  G: t. k, ?</code></pre>
<p>在最下面一行输入：</p>
/ q  p" U% u( m# n. L<pre><code class="language-c"># pycharm
alias pycharm="sh /home/jc-cao/app_download_address/Pycharm2021/pycharm-community-2021.3.1/bin/pycharm.sh"
</code></pre>
+ v' H6 k% S+ u7 c0 l0 s  h% s/ J* y<p>注：将上面的路径改为自己的pycharm安装路径即可<br>
3 [0 o0 V7 x) H然后使配置生效</p>
% v0 Z: V2 e+ n* {& I<pre><code class="language-c">source .bashrc
</code></pre>
<p>这样在终端输入 <code>pycharm</code> 就能打开软件了<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102432003-1803611031.png" ><br>
, x2 F1 V0 A0 C接下来创建一个名为 learn_pytorch的工程：<br>
- m' n- U  F! P* L6 J: ]<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102433439-420704314.png" ><br>
选择解释器为之前所创建的名为pytorch的虚拟环境的python解释器</p>
<h2 id="22-jupyter安装">2.2 Jupyter安装</h2>
  S. i# V" H" Q$ o1 u<p>在pytorch 虚拟环境中，输入</p>
<pre><code class="language-c">conda install nb_conda
</code></pre>
* I, G8 D' Q  T% Y/ }+ W3 [4 U<p>安装jupyter：<br>
! @; p3 a% M3 X  L3 f# {2 D! `<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102433994-347380977.png" ><br>
安装好后输入 <code>jupyter notebook</code> 测试<br>
  T4 X! @/ M8 y9 j<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102434545-226958772.png" ><br>
0 Q/ g! g) B% Q. p: ~5 B4 \" ?在jupyter中新建一个notebook，采用pytorch虚拟环境的python解释器，即可导入torch包进行使用了。<br>
$ l8 ^  O) @! H; `* b  V<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102434869-1058987249.png" ></p>
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