PyTorch深度学习入门笔记（一）PyTorch环境配置及安装

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3 S7 u( `  @- r- L4 }6 S/ Q2 y% o<p>@</p><p></p>
<p><strong>OS：</strong> ubuntu 20.04（虚拟机）</p>
<h1 id="一工具安装">一、工具安装</h1>
: b* h: w. G8 a- h<h2 id="11-anaconda-安装">1.1 Anaconda 安装</h2>
<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>
2 f: M/ R# H4 E- z<code>Anaconda3-5.2.0-Linux-x86_64.sh</code><br>
$ i+ |  t# N& K. p6 l, D' m$ p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>
0 a3 ~. O% E0 s/ [3 g安装成功测试：<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102427806-11701860.png" ><br>
& X/ I% e" T5 A$ g- R7 X首先创建一个虚拟环境：</p>
4 x8 j1 o: e" X0 k8 Y) V) h) b<pre><code class="language-c">conda create -n pytorch python=3.6
- x) Z% W) j8 y; t- D; C/ i</code></pre>
<p><img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102428555-1044758357.png" ><br>
输入</p>
5 `, w& F( D2 j<pre><code class="language-c">source activate pytorch
+ v3 e; ~7 t) N$ V. v; Q</code></pre>
<p>激活环境</p>
* W9 n8 t! D$ X2 a6 A, ~<h2 id="12-pytorch安装">1.2 Pytorch安装</h2>
" M  ^4 L$ @  [4 Z4 j! S" A% x<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>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102429086-588112728.png" ></p>
<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>
<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
</code></pre>
! w$ I, L; d' W( h9 L5 l<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>
安装好后进行测试：<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102430213-1770020069.png" ></p>
1 B% D  U5 X# S; Q8 b<h1 id="二编辑器安装">二、编辑器安装</h1>
8 q5 D% O1 a: J, u<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>
7 G: |! X( @8 ^4 Y& s( C选择免费的社区版安装：<br>
<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>
<pre><code class="language-bash">gedit .bashrc
</code></pre>
<p>在最下面一行输入：</p>
2 X, {6 [; T% u6 r& m<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>
<p>注：将上面的路径改为自己的pycharm安装路径即可<br>
然后使配置生效</p>
<pre><code class="language-c">source .bashrc
8 L" s9 v; f/ G. m: l& ?</code></pre>
<p>这样在终端输入 <code>pycharm</code> 就能打开软件了<br>
3 q" j) y+ O& Y0 H( }! G- B% b<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102432003-1803611031.png" ><br>
6 V- N, z1 Y% K2 P: P1 `接下来创建一个名为 learn_pytorch的工程：<br>
2 }  B. c  U) K$ k' m9 C<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102433439-420704314.png" ><br>
8 |& }% D% d( K7 i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>
* A) S" d. O( [% c$ `1 P<h2 id="22-jupyter安装">2.2 Jupyter安装</h2>
<p>在pytorch 虚拟环境中，输入</p>
<pre><code class="language-c">conda install nb_conda
  ?7 z9 m* A- E! z" H/ n% A</code></pre>
& w5 t0 c6 j. B; I/ a<p>安装jupyter：<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102433994-347380977.png" ><br>
: U9 }% a+ o' Q安装好后输入 <code>jupyter notebook</code> 测试<br>
<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102434545-226958772.png" ><br>
( T5 D( j/ }6 y# ~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>
* K# `- H1 E+ @<img src="https://img2022.cnblogs.com/other/1772025/202202/1772025-20220212102434869-1058987249.png" ></p>
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