io.html



<!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 name="viewport" content="width=device-width, initial-scale=1.0">
  
  <title>io &mdash; PaddlePaddle  documentation</title>
  

    <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
  

        <link rel="index" title="Index"
              href="../../genindex.html"/>
        <link rel="search" title="Search" href="../../search.html"/>
    <link rel="top" title="PaddlePaddle  documentation" href="../../index.html"/>
        <link rel="up" title="Fluid" href="../fluid.html"/>
        <link rel="prev" title="regularizer" href="regularizer.html"/> 

  <link rel="stylesheet" href="https://cdn.jsdelivr.net/perfect-scrollbar/0.6.14/css/perfect-scrollbar.min.css" type="text/css" />
  <link rel="stylesheet" href="../../_static/css/override.css" type="text/css" />
  <script>
  var _hmt = _hmt || [];
  (function() {
    var hm = document.createElement("script");
    hm.src = "//hm.baidu.com/hm.js?b9a314ab40d04d805655aab1deee08ba";
    var s = document.getElementsByTagName("script")[0]; 
    s.parentNode.insertBefore(hm, s);
  })();
  </script>

  
  <script src="../../_static/js/modernizr.min.js"></script>

</head>

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

  
  <header class="site-header">
    <div class="site-logo">
      <a href="/"><img src="../../_static/images/PP_w.png"></a>
    </div>
    <div class="site-nav-links">
      <div class="site-menu">
        <a class="fork-on-github" href="https://github.com/PaddlePaddle/Paddle" target="_blank"><i class="fa fa-github"></i>Fork me on Github</a>
        <div class="language-switcher dropdown">
          <a type="button" data-toggle="dropdown">
            <span>English</span>
            <i class="fa fa-angle-up"></i>
            <i class="fa fa-angle-down"></i>
          </a>
          <ul class="dropdown-menu">
            <li><a href="/doc_cn">中文</a></li>
            <li><a href="/doc">English</a></li>
          </ul>
        </div>
        <ul class="site-page-links">
          <li><a href="/">Home</a></li>
        </ul>
      </div>
      <div class="doc-module">
        
        <ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../../overview.html">API Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="../model_configs.html">Model Configuration</a></li>
<li class="toctree-l1"><a class="reference internal" href="../data.html">Data Reader Interface and DataSets</a></li>
<li class="toctree-l1"><a class="reference internal" href="../run_logic.html">Training and Inference</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../fluid.html">Fluid</a></li>
</ul>

        
<div role="search">
  <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
    <input type="text" name="q" placeholder="Search docs" />
    <input type="hidden" name="check_keywords" value="yes" />
    <input type="hidden" name="area" value="default" />
  </form>
</div>        
      </div>
    </div>
  </header>
  
  <div class="main-content-wrap">

    
    <nav class="doc-menu-vertical" role="navigation">
        
          
          <ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../../overview.html">API Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="../model_configs.html">Model Configuration</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../config/activation.html">Activation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/layer.html">Layers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/evaluators.html">Evaluators</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/optimizer.html">Optimizer</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/pooling.html">Pooling</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/networks.html">Networks</a></li>
<li class="toctree-l2"><a class="reference internal" href="../config/attr.html">Parameter Attribute</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../data.html">Data Reader Interface and DataSets</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../data/data_reader.html">Data Reader Interface</a></li>
<li class="toctree-l2"><a class="reference internal" href="../data/image.html">Image Interface</a></li>
<li class="toctree-l2"><a class="reference internal" href="../data/dataset.html">Dataset</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../run_logic.html">Training and Inference</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../fluid.html">Fluid</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="layers.html">layers</a></li>
<li class="toctree-l2"><a class="reference internal" href="data_feeder.html">data_feeder</a></li>
<li class="toctree-l2"><a class="reference internal" href="executor.html">executor</a></li>
<li class="toctree-l2"><a class="reference internal" href="initializer.html">initializer</a></li>
<li class="toctree-l2"><a class="reference internal" href="evaluator.html">evaluator</a></li>
<li class="toctree-l2"><a class="reference internal" href="nets.html">nets</a></li>
<li class="toctree-l2"><a class="reference internal" href="optimizer.html">optimizer</a></li>
<li class="toctree-l2"><a class="reference internal" href="param_attr.html">param_attr</a></li>
<li class="toctree-l2"><a class="reference internal" href="profiler.html">profiler</a></li>
<li class="toctree-l2"><a class="reference internal" href="regularizer.html">regularizer</a></li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">io</a></li>
</ul>
</li>
</ul>

        
    </nav>
    
    <section class="doc-content-wrap">

      
<div role="navigation" aria-label="breadcrumbs navigation">
  <ul class="wy-breadcrumbs">
      
        <li><a href="../fluid.html">Fluid</a> > </li>
      
    <li>io</li>
  </ul>
</div>
      
      <div class="wy-nav-content" id="doc-content">
        <div class="rst-content">
          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
           <div itemprop="articleBody">
            
  <div class="section" id="io">
<h1>io<a class="headerlink" href="#io" title="Permalink to this headline">¶</a></h1>
<div class="section" id="save-vars">
<h2>save_vars<a class="headerlink" href="#save-vars" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">save_vars</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>vars=None</em>, <em>predicate=None</em>, <em>save_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Save variables to directory by executor.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>executor</strong> &#8211; executor that save variable</li>
<li><strong>dirname</strong> &#8211; directory path</li>
<li><strong>main_program</strong> &#8211; program. If vars is None, then filter all variables in this</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>program which fit <cite>predicate</cite>. Default default_main_program.
:param predicate: The Predicate describes a callable that returns a variable
as a bool. If it returns true, the corresponding input variable will be saved.
:param vars: variables need to be saved. If vars is specified, program &amp; predicate
will be ignored
:param save_file_name: The name of a single file that all vars are saved to.
If it is None, save variables to separate files.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>

</div>
<div class="section" id="save-params">
<h2>save_params<a class="headerlink" href="#save-params" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">save_params</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>save_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Save all parameters to directory with executor.</p>
</dd></dl>

</div>
<div class="section" id="save-persistables">
<h2>save_persistables<a class="headerlink" href="#save-persistables" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">save_persistables</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>save_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Save all persistables to directory with executor.</p>
</dd></dl>

</div>
<div class="section" id="load-vars">
<h2>load_vars<a class="headerlink" href="#load-vars" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">load_vars</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>vars=None</em>, <em>predicate=None</em>, <em>load_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Load variables from directory by executor.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>executor</strong> &#8211; executor that load variable</li>
<li><strong>dirname</strong> &#8211; directory path</li>
<li><strong>main_program</strong> &#8211; program. If vars is None, then filter all variables in this</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>program which fit <cite>predicate</cite>. Default default_main_program().
:param predicate: The Predicate describes a callable that returns a variable
as a bool. If it returns true, the corresponding input variable will be loaded.
:param vars: variables need to be loaded. If vars is specified, program &amp;
predicate will be ignored
:param load_file_name: The name of the single file that all vars are loaded from.
If it is None, load variables from separate files.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>

</div>
<div class="section" id="load-params">
<h2>load_params<a class="headerlink" href="#load-params" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">load_params</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>load_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>load all parameters from directory by executor.</p>
</dd></dl>

</div>
<div class="section" id="load-persistables">
<h2>load_persistables<a class="headerlink" href="#load-persistables" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">load_persistables</code><span class="sig-paren">(</span><em>executor</em>, <em>dirname</em>, <em>main_program=None</em>, <em>load_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>load all persistables from directory by executor.</p>
</dd></dl>

</div>
<div class="section" id="save-inference-model">
<h2>save_inference_model<a class="headerlink" href="#save-inference-model" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">save_inference_model</code><span class="sig-paren">(</span><em>dirname</em>, <em>feeded_var_names</em>, <em>target_vars</em>, <em>executor</em>, <em>main_program=None</em>, <em>save_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Build a model especially for inference,
and save it to directory by the executor.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>dirname</strong> &#8211; directory path</li>
<li><strong>feeded_var_names</strong> &#8211; Names of variables that need to be feeded data during inference</li>
<li><strong>target_vars</strong> &#8211; Variables from which we can get inference results.</li>
<li><strong>executor</strong> &#8211; executor that save inference model</li>
<li><strong>main_program</strong> &#8211; original program, which will be pruned to build the inference model.
Default default_main_program().</li>
<li><strong>save_file_name</strong> &#8211; The name of a single file that all parameters are saved to.</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>If it is None, save parameters to separate files.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>

</div>
<div class="section" id="load-inference-model">
<h2>load_inference_model<a class="headerlink" href="#load-inference-model" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">load_inference_model</code><span class="sig-paren">(</span><em>dirname</em>, <em>executor</em>, <em>load_file_name=None</em><span class="sig-paren">)</span></dt>
<dd><p>Load inference model from a directory</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>dirname</strong> &#8211; directory path</li>
<li><strong>executor</strong> &#8211; executor that load inference model</li>
<li><strong>load_file_name</strong> &#8211; The name of the single file that all parameters are loaded from.</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>If it is None, load parameters from separate files.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">[program, feed_target_names, fetch_targets]
program: program especially for inference.
feed_target_names: Names of variables that need to feed data
fetch_targets: Variables from which we can get inference results.</td>
</tr>
</tbody>
</table>
</dd></dl>

</div>
<div class="section" id="get-inference-program">
<h2>get_inference_program<a class="headerlink" href="#get-inference-program" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt>
<code class="descclassname">paddle.v2.fluid.io.</code><code class="descname">get_inference_program</code><span class="sig-paren">(</span><em>target_vars</em>, <em>main_program=None</em><span class="sig-paren">)</span></dt>
<dd></dd></dl>

</div>
</div>


           </div>
          </div>
          <footer>
  
    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
      
      
        <a href="regularizer.html" class="btn btn-neutral" title="regularizer" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a>
      
    </div>
  

  <hr/>

  <div role="contentinfo">
    <p>
        &copy; Copyright 2016, PaddlePaddle developers.

    </p>
  </div>
  Built with <a href="http://sphinx-doc.org/">Sphinx</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>
  

    <script type="text/javascript">
        var DOCUMENTATION_OPTIONS = {
            URL_ROOT:'../../',
            VERSION:'',
            COLLAPSE_INDEX:false,
            FILE_SUFFIX:'.html',
            HAS_SOURCE:  true,
            SOURCELINK_SUFFIX: ".txt",
        };
    </script>
      <script type="text/javascript" src="../../_static/jquery.js"></script>
      <script type="text/javascript" src="../../_static/underscore.js"></script>
      <script type="text/javascript" src="../../_static/doctools.js"></script>
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
       
  
    <script type="text/javascript" src="../../_static/js/theme.js"></script>
  
  
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/perfect-scrollbar/0.6.14/js/perfect-scrollbar.jquery.min.js"></script>
  <script src="../../_static/js/paddle_doc_init.js"></script> 

</body>
</html>