Skip to content

P
PaddleSlim

PaddlePaddle / PaddleSlim
1 年多 前同步成功

通知 51
Star 1434
Fork 344
P
PaddleSlim
切换分支/标签
查找文件 普通视图历史永久链接Permalink
index.html 22.0 KB
Newer Older
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 
<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  
  
  <link rel="shortcut icon" href="../../img/favicon.ico">
  <title>SA搜索 - PaddleSlim Docs</title>
  <link href='https://fonts.googleapis.com/css?family=Lato:400,700|Roboto+Slab:400,700|Inconsolata:400,700' rel='stylesheet' type='text/css'>

  <link rel="stylesheet" href="../../css/theme.css" type="text/css" />
  <link rel="stylesheet" href="../../css/theme_extra.css" type="text/css" />
  <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/github.min.css">
B
Deployed 405a468 with MkDocs version: 1.0.4  
baiyfbupt 已提交
17 
  <link href="../../extra.css" rel="stylesheet">
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 
  
  <script>
    // Current page data
    var mkdocs_page_name = "SA\u641c\u7d22";
    var mkdocs_page_input_path = "api/nas_api.md";
    var mkdocs_page_url = null;
  </script>
  
  <script src="../../js/jquery-2.1.1.min.js" defer></script>
  <script src="../../js/modernizr-2.8.3.min.js" defer></script>
  <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js"></script>
  <script>hljs.initHighlightingOnLoad();</script> 
  
</head>

<body class="wy-body-for-nav" role="document">

  <div class="wy-grid-for-nav">

    
    <nav data-toggle="wy-nav-shift" class="wy-nav-side stickynav">
      <div class="wy-side-nav-search">
        <a href="../.." class="icon icon-home"> PaddleSlim Docs</a>
        <div role="search">
  <form id ="rtd-search-form" class="wy-form" action="../../search.html" method="get">
    <input type="text" name="q" placeholder="Search docs" title="Type search term here" />
  </form>
</div>
      </div>

      <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
	<ul class="current">
	  
          
            <li class="toctree-l1">
		
    <a class="" href="../..">Home</a>
	    </li>
          
            <li class="toctree-l1">
B
Deployed 482d368 with MkDocs version: 1.0.4  
baiyfbupt 已提交
59 60 61 62 63 
    <a class="" href="../../model_zoo/">模型库</a>
	    </li>
          
            <li class="toctree-l1">
B
Deployed 55210fe with MkDocs version: 1.0.4  
baiyfbupt 已提交
64 65 66 67 
    <span class="caption-text">教程</span>
    <ul class="subnav">
                <li class="">
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
68 69 70 71 
    <a class="" href="../../tutorials/pruning_tutorial/">图像分类模型通道剪裁-快速开始</a>
                </li>
                <li class="">
B
Deployed 55210fe with MkDocs version: 1.0.4  
baiyfbupt 已提交
72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 
    <a class="" href="../../tutorials/quant_post_demo/">离线量化</a>
                </li>
                <li class="">
                    
    <a class="" href="../../tutorials/quant_aware_demo/">量化训练</a>
                </li>
                <li class="">
                    
    <a class="" href="../../tutorials/quant_embedding_demo/">Embedding量化</a>
                </li>
                <li class="">
                    
    <a class="" href="../../tutorials/nas_demo/">SA搜索</a>
                </li>
                <li class="">
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
88 89 90 91 
    <a class="" href="../../tutorials/one_shot_nas_demo/">One-shot搜索</a>
                </li>
                <li class="">
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
92 
    <a class="" href="../../search_space/">搜索空间</a>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
93 94 95 
                </li>
                <li class="">
B
Deployed 55210fe with MkDocs version: 1.0.4  
baiyfbupt 已提交
96 97 98 99 100 101 102 
    <a class="" href="../../tutorials/distillation_demo/">知识蒸馏</a>
                </li>
    </ul>
	    </li>
          
            <li class="toctree-l1">
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
103 104 105 106 107 108 109 110 
    <span class="caption-text">API</span>
    <ul class="subnav">
                <li class="">
                    
    <a class="" href="../quantization_api/">量化</a>
                </li>
                <li class="">
B
Deployed 0f9c3ce with MkDocs version: 1.0.4  
baiyfbupt 已提交
111 
    <a class="" href="../prune_api/">剪枝与敏感度</a>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
112 113 114 
                </li>
                <li class="">
B
Deployed 0f9c3ce with MkDocs version: 1.0.4  
baiyfbupt 已提交
115 
    <a class="" href="../analysis_api/">模型分析</a>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
116 117 118 
                </li>
                <li class="">
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
119 120 121 122 123 
    <a class="" href="../single_distiller_api/">简单知识蒸馏</a>
                </li>
                <li class="">
                    
    <a class="" href="../pantheon_api/">大规模可扩展知识蒸馏框架 Pantheon</a>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
124 125 126 127 128 129 
                </li>
                <li class=" current">
                    
    <a class="current" href="./">SA搜索</a>
    <ul class="subnav">
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
130 
    <li class="toctree-l3"><a href="#_1">搜索空间参数的配置</a></li>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
131
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
132 133 

    <li class="toctree-l3"><a href="#sanas">SANAS</a></li>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
134 135 136 137 138 139 
    

    </ul>
                </li>
                <li class="">
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
140 141 142 143 144 145 146 147 
    <a class="" href="../one_shot_api/">One-shot搜索</a>
                </li>
                <li class="">
                    
    <a class="" href="../../search_space/">搜索空间</a>
                </li>
                <li class="">
B
Deployed 0f9c3ce with MkDocs version: 1.0.4  
baiyfbupt 已提交
148 149 
    <a class="" href="../../table_latency/">硬件延时评估表</a>
                </li>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
150 151 152 
    </ul>
	    </li>
B
Deployed 0f9c3ce with MkDocs version: 1.0.4  
baiyfbupt 已提交
153 154 155 156 157 
            <li class="toctree-l1">
		
    <a class="" href="../../algo/algo/">算法原理</a>
	    </li>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 
        </ul>
      </div>
      &nbsp;
    </nav>

    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">

      
      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
        <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
        <a href="../..">PaddleSlim Docs</a>
      </nav>

      
      <div class="wy-nav-content">
        <div class="rst-content">
          <div role="navigation" aria-label="breadcrumbs navigation">
  <ul class="wy-breadcrumbs">
    <li><a href="../..">Docs</a> &raquo;</li>
    
      
        
          <li>API &raquo;</li>
        
      
    
    <li>SA搜索</li>
    <li class="wy-breadcrumbs-aside">
B
Deployed 09a1807 with MkDocs version: 1.0.4  
baiyfbupt 已提交
187 
        <a href="https://github.com/PaddlePaddle/PaddleSlim/edit/master/docs/api/nas_api.md"
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
188 189 190 191 192 193 194 195 196 
          class="icon icon-github"> Edit on GitHub</a>
      
    </li>
  </ul>
  <hr/>
</div>
          <div role="main">
            <div class="section">
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
197 198 199 200 
                <h2 id="_1">搜索空间参数的配置<a class="headerlink" href="#_1" title="Permanent link">#</a></h2>
<p>通过参数配置搜索空间。更多搜索空间的使用可以参考<a href="../../search_space/">search_space</a></p>
<p><strong>参数：</strong></p>
<ul>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
201 202 
<li><strong>input_size(int|None)</strong>：- <code>input_size</code>表示输入feature map的大小。<code>input_size</code>和<code>output_size</code>用来计算整个模型结构中下采样次数。</li>
<li><strong>output_size(int|None)</strong>：- <code>output_size</code>表示输出feature map的大小。<code>input_size</code>和<code>output_size</code>用来计算整个模型结构中下采样次数。</li>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
203 
<li><strong>block_num(int|None)</strong>：- <code>block_num</code>表示搜索空间中block的数量。</li>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
204 
<li><strong>block_mask(list|None)</strong>：- <code>block_mask</code>是一组由0、1组成的列表，0表示当前block是normal block，1表示当前block是reduction block。reduction block表示经过这个block之后的feature map大小下降为之前的一半，normal block表示经过这个block之后feature map大小不变。如果设置了<code>block_mask</code>，则主要以<code>block_mask</code>为主要配置，<code>input_size</code>，<code>output_size</code>和<code>block_num</code>三种配置是无效的。</li>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
205 206 207 
</ul>
<h2 id="sanas">SANAS<a class="headerlink" href="#sanas" title="Permanent link">#</a></h2>
<dl>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
208 
<dt>paddleslim.nas.SANAS(configs, server_addr=("", 8881), init_temperature=None, reduce_rate=0.85, init_tokens=None, search_steps=300, save_checkpoint='./nas_checkpoint', load_checkpoint=None, is_server=True)<a href="https://github.com/PaddlePaddle/PaddleSlim/blob/develop/paddleslim/nas/sa_nas.py#L36">源代码</a></dt>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
209 210 211 212 
<dd>SANAS（Simulated Annealing Neural Architecture Search）是基于模拟退火算法进行模型结构搜索的算法，一般用于离散搜索任务。</dd>
</dl>
<p><strong>参数：</strong></p>
<ul>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
213 
<li><strong>configs(list<tuple>)</strong> - 搜索空间配置列表，格式是<code>[(key, {input_size, output_size, block_num, block_mask})]</code>或者<code>[(key)]</code>（MobileNetV2、MobilenetV1和ResNet的搜索空间使用和原本网络结构相同的搜索空间，所以仅需指定<code>key</code>即可）, <code>input_size</code> 和<code>output_size</code>表示输入和输出的特征图的大小，<code>block_num</code>是指搜索网络中的block数量，<code>block_mask</code>是一组由0和1组成的列表，0代表不进行下采样的block，1代表下采样的block。 更多paddleslim提供的搜索空间配置可以参考<a href="../../search_space/">Search Space</a>。</li>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
214 
<li><strong>server_addr(tuple)</strong> - SANAS的地址，包括server的ip地址和端口号，如果ip地址为None或者为""的话则默认使用本机ip。默认：（"", 8881）。</li>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
215 216 217 
<li><strong>init_temperature(float)</strong> - 基于模拟退火进行搜索的初始温度。如果init_template为None而且init_tokens为None，则默认初始温度为10.0，如果init_template为None且init_tokens不为None，则默认初始温度为1.0。详细的温度设置可以参考下面的Note。默认：None。</li>
<li><strong>reduce_rate(float)</strong> - 基于模拟退火进行搜索的衰减率。详细的退火率设置可以参考下面的Note。默认：0.85。</li>
<li><strong>init_tokens(list|None)</strong> - 初始化token，若init_tokens为空，则SA算法随机生成初始化tokens。默认：None。</li>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
218 219 220 221 222 223 
<li><strong>search_steps(int)</strong> - 搜索过程迭代的次数。默认：300。</li>
<li><strong>save_checkpoint(str|None)</strong> - 保存checkpoint的文件目录，如果设置为None的话则不保存checkpoint。默认：<code>./nas_checkpoint</code>。</li>
<li><strong>load_checkpoint(str|None)</strong> - 加载checkpoint的文件目录，如果设置为None的话则不加载checkpoint。默认：None。</li>
<li><strong>is_server(bool)</strong> - 当前实例是否要启动一个server。默认：True。</li>
</ul>
<p><strong>返回：</strong>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
224 
一个SANAS类的实例</p>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
225 
<p><strong>示例代码：</strong>
B
Deployed d95da67 with MkDocs version: 1.0.4  
baiyfbupt 已提交
226 
<div class="codehilite"><pre><span></span><span class="kn">from</span> <span class="nn">paddleslim.nas</span> <span class="kn">import</span> <span class="n">SANAS</span>
B
Deployed 405a468 with MkDocs version: 1.0.4  
baiyfbupt 已提交
227 
<span class="n">config</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;MobileNetV2Space&#39;</span><span class="p">)]</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
228 
<span class="n">sanas</span> <span class="o">=</span> <span class="n">SANAS</span><span class="p">(</span><span class="n">configs</span><span class="o">=</span><span class="n">config</span><span class="p">)</span>
B
Deployed d95da67 with MkDocs version: 1.0.4  
baiyfbupt 已提交
229 
</pre></div></p>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
230 231 232 233 234 235 
<div class="admonition note">
<p class="admonition-title">Note</p>
</div>
<ul>
<li>
<p>初始化温度和退火率的意义: <br></p>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
236 
<ul>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
237 238 239 240 241 242 243 244 245 246 247 248 249 250 
<li>SA算法内部会保存一个基础token（初始化token可以自己传入也可以随机生成）和基础score（初始化score为-1），下一个token会在当前SA算法保存的token的基础上产生。在SA的搜索过程中，如果本轮的token训练得到的score大于SA算法中保存的score，则本轮的token一定会被SA算法接收保存为下一轮token产生的基础token。<br></li>
<li>初始温度越高表示SA算法当前处的阶段越不稳定，本轮的token训练得到的score小于SA算法中保存的score的话，本轮的token和score被SA算法接收的可能性越大。<br></li>
<li>初始温度越低表示SA算法当前处的阶段越稳定，本轮的token训练得到的score小于SA算法中保存的score的话，本轮的token和score被SA算法接收的可能性越小。<br></li>
<li>退火率越大，表示SA算法收敛的越慢，即SA算法越慢到稳定阶段。<br></li>
<li>退火率越低，表示SA算法收敛的越快，即SA算法越快到稳定阶段。<br></li>
</ul>
</li>
<li>
<p>初始化温度和退火率的设置: <br></p>
<ul>
<li>如果原本就有一个较好的初始化token，想要基于这个较好的token来进行搜索的话，SA算法可以处于一个较为稳定的状态进行搜索r这种情况下初始温度可以设置的低一些，例如设置为1.0，退火率设置的大一些，例如设置为0.85。如果想要基于这个较好的token利用贪心算法进行搜索，即只有当本轮token训练得到的score大于SA算法中保存的score，SA算法才接收本轮token，则退火率可设置为一个极小的数字，例如设置为0.85 ** 10。<br></li>
<li>初始化token如果是随机生成的话，代表初始化token是一个比较差的token，SA算法可以处于一种不稳定的阶段进行搜索，尽可能的随机探索所有可能得token，从而找到一个较好的token。初始温度可以设置的高一些，例如设置为1000，退火率相对设置的小一些。</li>
</ul>
</li>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
251 252 253 254 255 256 
</ul>
<dl>
<dt>paddleslim.nas.SANAS.next_archs()</dt>
<dd>获取下一组模型结构。</dd>
</dl>
<p><strong>返回：</strong>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
257 
返回模型结构实例的列表，形式为list。</p>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
258 
<p><strong>示例代码：</strong>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
259 
<div class="codehilite"><pre><span></span><span class="kn">import</span> <span class="nn">paddle.fluid</span> <span class="k">as</span> <span class="nn">fluid</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
260 261 262 
<span class="kn">from</span> <span class="nn">paddleslim.nas</span> <span class="kn">import</span> <span class="n">SANAS</span>
<span class="n">config</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;MobileNetV2Space&#39;</span><span class="p">)]</span>
<span class="n">sanas</span> <span class="o">=</span> <span class="n">SANAS</span><span class="p">(</span><span class="n">configs</span><span class="o">=</span><span class="n">config</span><span class="p">)</span>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
263 
<span class="nb">input</span> <span class="o">=</span> <span class="n">fluid</span><span class="o">.</span><span class="n">data</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;input&#39;</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">[</span><span class="kc">None</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">32</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="s1">&#39;float32&#39;</span><span class="p">)</span>
B
Deployed 405a468 with MkDocs version: 1.0.4  
baiyfbupt 已提交
264 265 266 267 
<span class="n">archs</span> <span class="o">=</span> <span class="n">sanas</span><span class="o">.</span><span class="n">next_archs</span><span class="p">()</span>
<span class="k">for</span> <span class="n">arch</span> <span class="ow">in</span> <span class="n">archs</span><span class="p">:</span>
    <span class="n">output</span> <span class="o">=</span> <span class="n">arch</span><span class="p">(</span><span class="nb">input</span><span class="p">)</span>
    <span class="nb">input</span> <span class="o">=</span> <span class="n">output</span>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
268 
<span class="nb">print</span><span class="p">(</span><span class="n">output</span><span class="p">)</span>
B
Deployed d95da67 with MkDocs version: 1.0.4  
baiyfbupt 已提交
269 
</pre></div></p>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
270 271 272 273 274 275 276 277 278 
<dl>
<dt>paddleslim.nas.SANAS.reward(score)</dt>
<dd>把当前模型结构的得分情况回传。</dd>
</dl>
<p><strong>参数：</strong></p>
<ul>
<li><strong>score<float>:</strong> - 当前模型的得分，分数越大越好。</li>
</ul>
<p><strong>返回：</strong>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
279 
模型结构更新成功或者失败，成功则返回<code>True</code>，失败则返回<code>False</code>。</p>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
280 
<p><strong>示例代码：</strong>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
281 
<div class="codehilite"><pre><span></span><span class="kn">import</span> <span class="nn">paddle.fluid</span> <span class="k">as</span> <span class="nn">fluid</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 
<span class="kn">from</span> <span class="nn">paddleslim.nas</span> <span class="kn">import</span> <span class="n">SANAS</span>
<span class="n">config</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;MobileNetV2Space&#39;</span><span class="p">)]</span>
<span class="n">sanas</span> <span class="o">=</span> <span class="n">SANAS</span><span class="p">(</span><span class="n">configs</span><span class="o">=</span><span class="n">config</span><span class="p">)</span>
<span class="n">archs</span> <span class="o">=</span> <span class="n">sanas</span><span class="o">.</span><span class="n">next_archs</span><span class="p">()</span>

<span class="c1">### 假设网络计算出来的score是1，实际代码中使用时需要返回真实score。</span>
<span class="n">score</span><span class="o">=</span><span class="nb">float</span><span class="p">(</span><span class="mf">1.0</span><span class="p">)</span>
<span class="n">sanas</span><span class="o">.</span><span class="n">reward</span><span class="p">(</span><span class="nb">float</span><span class="p">(</span><span class="n">score</span><span class="p">))</span>
</pre></div></p>
<dl>
<dt>paddlesim.nas.SANAS.tokens2arch(tokens)</dt>
<dd>通过一组tokens得到实际的模型结构，一般用来把搜索到最优的token转换为模型结构用来做最后的训练。tokens的形式是一个列表，tokens映射到搜索空间转换成相应的网络结构，一组tokens对应唯一的一个网络结构。</dd>
</dl>
<p><strong>参数：</strong></p>
<ul>
<li><strong>tokens(list):</strong> - 一组tokens。tokens的长度和范取决于搜索空间。</li>
</ul>
<p><strong>返回：</strong>
根据传入的token得到一个模型结构实例。</p>
<p><strong>示例代码：</strong>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
302 
<div class="codehilite"><pre><span></span><span class="kn">import</span> <span class="nn">paddle.fluid</span> <span class="k">as</span> <span class="nn">fluid</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
303 304 305 
<span class="kn">from</span> <span class="nn">paddleslim.nas</span> <span class="kn">import</span> <span class="n">SANAS</span>
<span class="n">config</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;MobileNetV2Space&#39;</span><span class="p">)]</span>
<span class="n">sanas</span> <span class="o">=</span> <span class="n">SANAS</span><span class="p">(</span><span class="n">configs</span><span class="o">=</span><span class="n">config</span><span class="p">)</span>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
306 
<span class="nb">input</span> <span class="o">=</span> <span class="n">fluid</span><span class="o">.</span><span class="n">data</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;input&#39;</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">[</span><span class="kc">None</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">32</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="s1">&#39;float32&#39;</span><span class="p">)</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
307 308 
<span class="n">tokens</span> <span class="o">=</span> <span class="p">([</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="mi">25</span><span class="p">)</span>
<span class="n">archs</span> <span class="o">=</span> <span class="n">sanas</span><span class="o">.</span><span class="n">tokens2arch</span><span class="p">(</span><span class="n">tokens</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
309 
<span class="nb">print</span><span class="p">(</span><span class="n">archs</span><span class="p">(</span><span class="nb">input</span><span class="p">))</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
310 
</pre></div></p>
B
Deployed ab60054 with MkDocs version: 1.0.4  
baiyfbupt 已提交
311 312 313 314 315 316 
<dl>
<dt>paddleslim.nas.SANAS.current_info()</dt>
<dd>返回当前token和搜索过程中最好的token和reward。</dd>
</dl>
<p><strong>返回：</strong>
搜索过程中最好的token，reward和当前训练的token，形式为dict。</p>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
317 
<p><strong>示例代码：</strong>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
318 
<div class="codehilite"><pre><span></span><span class="kn">import</span> <span class="nn">paddle.fluid</span> <span class="k">as</span> <span class="nn">fluid</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
319 320 321 
<span class="kn">from</span> <span class="nn">paddleslim.nas</span> <span class="kn">import</span> <span class="n">SANAS</span>
<span class="n">config</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;MobileNetV2Space&#39;</span><span class="p">)]</span>
<span class="n">sanas</span> <span class="o">=</span> <span class="n">SANAS</span><span class="p">(</span><span class="n">configs</span><span class="o">=</span><span class="n">config</span><span class="p">)</span>
W
Deployed 44b48c8 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
322 
<span class="nb">print</span><span class="p">(</span><span class="n">sanas</span><span class="o">.</span><span class="n">current_info</span><span class="p">())</span>
W
Deployed 7790b33 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
323 
</pre></div></p>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
324 325 326 327 328 329 330 
              
            </div>
          </div>
          <footer>
  
    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
331 
        <a href="../one_shot_api/" class="btn btn-neutral float-right" title="One-shot搜索">Next <span class="icon icon-circle-arrow-right"></span></a>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
332 333
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
334 
        <a href="../pantheon_api/" class="btn btn-neutral" title="大规模可扩展知识蒸馏框架 Pantheon"><span class="icon icon-circle-arrow-left"></span> Previous</a>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 
      
    </div>
  

  <hr/>

  <div role="contentinfo">
    <!-- Copyright etc -->
    
  </div>

  Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
</footer>
      
        </div>
      </div>

    </section>

  </div>

  <div class="rst-versions" role="note" style="cursor: pointer">
    <span class="rst-current-version" data-toggle="rst-current-version">
      
          <a href="https://github.com/PaddlePaddle/PaddleSlim/" class="fa fa-github" style="float: left; color: #fcfcfc"> GitHub</a>
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
362 
        <span><a href="../pantheon_api/" style="color: #fcfcfc;">&laquo; Previous</a></span>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
363 364
W
Deployed 42bbcb1 with MkDocs version: 1.0.4  
wanghaoshuang 已提交
365 
        <span style="margin-left: 15px"><a href="../one_shot_api/" style="color: #fcfcfc">Next &raquo;</a></span>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
366 367 368 369 370 371 
      
    </span>
</div>
    <script>var base_url = '../..';</script>
    <script src="../../js/theme.js" defer></script>
      <script src="../../mathjax-config.js" defer></script>
B
Deployed 0f9c3ce with MkDocs version: 1.0.4  
baiyfbupt 已提交
372 
      <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML" defer></script>
B
Deployed 09f99c9 with MkDocs version: 1.0.4  
baiyfbupt 已提交
373 374 375 376 
      <script src="../../search/main.js" defer></script>

</body>
</html>