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 <li class="toctree-l3"><a class="reference internal" href="#class-singa-snapshot-snapshot-f-mode-buffer-size-10">class singa.snapshot.Snapshot(f, mode, buffer_size=10)</a><ul>
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   <!--
     Licensed to the Apache Software Foundation (ASF) under one
     or more contributor license agreements.  See the NOTICE file
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     regarding copyright ownership.  The ASF licenses this file
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 <h1>Snapshot<a class="headerlink" href="#snapshot" title="Permalink to this headline">¶</a></h1>
 <p>此模块包含io::snapshot类及其方法。</p>
 <p>示例用法：</p>
 <div class="highlight-python"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">singa</span> <span class="kn">import</span> <span class="n">snapshot</span>

 <span class="n">sn1</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">&#39;param&#39;</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span>
 <span class="n">params</span> <span class="o">=</span> <span class="n">sn1</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>  <span class="c1"># read all params as a dictionary</span>

 <span class="n">sn2</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">&#39;param_new&#39;</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span>
 <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">params</span><span class="o">.</span><span class="n">iteritems</span><span class="p">():</span>
     <span class="n">sn2</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span>
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 <div class="section" id="class-singa-snapshot-snapshot-f-mode-buffer-size-10">
 <h2>class singa.snapshot.Snapshot(f, mode, buffer_size=10)<a class="headerlink" href="#class-singa-snapshot-snapshot-f-mode-buffer-size-10" title="Permalink to this headline">¶</a></h2>
 <p><code class="docutils literal"><span class="pre">singa::Snapshot</span></code>类和成员函数。</p>
 <hr class="docutils" />
 <div class="section" id="read">
 <h3>read()<a class="headerlink" href="#read" title="Permalink to this headline">¶</a></h3>
 <p>调用read方法加载所有信息（参数名，参数值）。</p>
 <p><strong>返回值：</strong> （参数名，参数值）的字典</p>
 </div>
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 <h3>write(param_name, param_val)<a class="headerlink" href="#write-param-name-param-val" title="Permalink to this headline">¶</a></h3>
 <p>调用write方法写回参数。</p>
 <p><strong>参数：</strong></p>
 <ul class="simple">
 <li><strong>param_name (string)</strong> – 参数名</li>
 <li><strong>param_val (Tensor)</strong> – 参数值的tensor</li>
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	--><div class="section" id="snapshot">
	<h1>Snapshot<a class="headerlink" href="#snapshot" title="Permalink to this headline">¶</a></h1>
	<p>此模块包含io::snapshot类及其方法。</p>
	<p>示例用法：</p>
	<div class="highlight-python"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">singa</span> <span class="kn">import</span> <span class="n">snapshot</span>

	<span class="n">sn1</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">'param'</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span>
	<span class="n">params</span> <span class="o">=</span> <span class="n">sn1</span><span class="o">.</span><span class="n">read</span><span class="p">()</span> <span class="c1"># read all params as a dictionary</span>

	<span class="n">sn2</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">'param_new'</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span>
	<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">params</span><span class="o">.</span><span class="n">iteritems</span><span class="p">():</span>
	<span class="n">sn2</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span>
	</pre></div>
	</div>
	<hr class="docutils" />
	<div class="section" id="class-singa-snapshot-snapshot-f-mode-buffer-size-10">
	<h2>class singa.snapshot.Snapshot(f, mode, buffer_size=10)<a class="headerlink" href="#class-singa-snapshot-snapshot-f-mode-buffer-size-10" title="Permalink to this headline">¶</a></h2>
	<p><code class="docutils literal"><span class="pre">singa::Snapshot</span></code>类和成员函数。</p>
	<hr class="docutils" />
	<div class="section" id="read">
	<h3>read()<a class="headerlink" href="#read" title="Permalink to this headline">¶</a></h3>
	<p>调用read方法加载所有信息（参数名，参数值）。</p>
	<p><strong>返回值：</strong> （参数名，参数值）的字典</p>
	</div>
	<hr class="docutils" />
	<div class="section" id="write-param-name-param-val">
	<h3>write(param_name, param_val)<a class="headerlink" href="#write-param-name-param-val" title="Permalink to this headline">¶</a></h3>
	<p>调用write方法写回参数。</p>
	<p><strong>参数：</strong></p>
	<ul class="simple">
	<li><strong>param_name (string)</strong> – 参数名</li>
	<li><strong>param_val (Tensor)</strong> – 参数值的tensor</li>
	</ul>
	<hr class="docutils" />
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