triton/language-reference/python-api/generated/triton.where.html



<!DOCTYPE html>
<html class="writer-html5" lang="en" >
<head>
  <meta charset="utf-8" />
  
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  
  <title>triton.where &mdash; Triton  documentation</title>
  

  <link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/gallery.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/gallery-binder.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/gallery-dataframe.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/gallery-rendered-html.css" type="text/css" />
  <link rel="stylesheet" href="../../../_static/css/custom.css" type="text/css" />

  
  <!--[if lt IE 9]>
    <script src="../../../_static/js/html5shiv.min.js"></script>
  <![endif]-->
  
    
      <script type="text/javascript" id="documentation_options" data-url_root="../../../" src="../../../_static/documentation_options.js"></script>
        <script src="../../../_static/jquery.js"></script>
        <script src="../../../_static/underscore.js"></script>
        <script src="../../../_static/doctools.js"></script>
    
    <script type="text/javascript" src="../../../_static/js/theme.js"></script>

    
    <link rel="index" title="Index" href="../../../genindex.html" />
    <link rel="search" title="Search" href="../../../search.html" /> 
</head>

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

   
  <div class="wy-grid-for-nav">
    
    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
      <div class="wy-side-scroll">
        <div class="wy-side-nav-search" >
          

            <a href="../../../index.html" class="icon icon-home"> Triton
          

          </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" />
    <input type="hidden" name="check_keywords" value="yes" />
    <input type="hidden" name="area" value="default" />
  </form>
</div>

          
        </div>

        
        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
          
            
              <p class="caption"><span class="caption-text">Getting Started</span></p>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../../../getting-started/installation.html">Installation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../getting-started/tutorials/index.html">Tutorials</a></li>
</ul>
<p class="caption"><span class="caption-text">Language Reference</span></p>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../index.html">Python API</a></li>
</ul>
<p class="caption"><span class="caption-text">Programming Guide</span></p>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../../../programming-guide/chapter-1/introduction.html">Introduction</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../programming-guide/chapter-2/related-work.html">Related Work</a></li>
</ul>

            
        </div>
        
      </div>
    </nav>

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

      
      <nav class="wy-nav-top" aria-label="top navigation">
        
          <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
          <a href="../../../index.html">Triton</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="../../../index.html" class="icon icon-home"></a> &raquo;</li>
        
      <li>triton.where</li>
    
    
      <li class="wy-breadcrumbs-aside">
        
          
            <a href="../../../_sources/language-reference/python-api/generated/triton.where.rst.txt" rel="nofollow"> View page source</a>
          
        
      </li>
    
  </ul>

  
  <hr/>
</div>
          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
           <div itemprop="articleBody">
            
  <div class="section" id="triton-where">
<h1>triton.where<a class="headerlink" href="#triton-where" title="Permalink to this headline">¶</a></h1>
<dl class="py function">
<dt id="triton.where">
<code class="sig-prename descclassname"><span class="pre">triton.</span></code><code class="sig-name descname"><span class="pre">where</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">condition</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">builder</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#triton.where" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns a block of elements from either <cite>x</cite> or <cite>y</cite>, depending on <cite>condition</cite>.
Note that <cite>x</cite> and <cite>y</cite> are always evaluated regardless of the value of <cite>condition</cite>.
If you want to avoid unintented memory operations, use the <cite>mask</cite> arguments in <cite>triton.load</cite> and <cite>triton.store</cite> instead.
The shape of <cite>x</cite> and <cite>y</cite> are both broadcast to the shape of <cite>condition</cite>.
<cite>x</cite> and <cite>y</cite> must have the data type.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>condition</strong> (<em>Block of triton.bool</em>) – When True (nonzero), yield x, otherwise yield y.</p></li>
<li><p><strong>x</strong> – values selected at indices where condition is True.</p></li>
<li><p><strong>y</strong> – values selected at indices where condition is False.</p></li>
<li><p><strong>builder</strong> (<em>triton.ir.builder</em>) – IR builder to generate code into, optional from within &#64;triton.jit functions</p></li>
</ul>
</dd>
</dl>
</dd></dl>

</div>


           </div>
           
          </div>
          <footer>

  <hr/>

  <div role="contentinfo">
    <p>
        &#169; Copyright 2020, Philippe Tillet.

    </p>
  </div>
    
    
    Built with <a href="https://www.sphinx-doc.org/">Sphinx</a> using a
    
    <a href="https://github.com/readthedocs/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">
      jQuery(function () {
          SphinxRtdTheme.Navigation.enable(true);
      });
  </script>

  
</body>
</html>