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<div class="section" id="triton-where">
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<h1>triton.where<a class="headerlink" href="#triton-where" title="Permalink to this headline">¶</a></h1>
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<dl class="py function">
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<dt id="triton.where">
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<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>
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<dd><p>Returns a block of elements from either <cite>x</cite> or <cite>y</cite>, depending on <cite>condition</cite>.
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Note that <cite>x</cite> and <cite>y</cite> are always evaluated regardless of the value of <cite>condition</cite>.
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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.
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The shape of <cite>x</cite> and <cite>y</cite> are both broadcast to the shape of <cite>condition</cite>.
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<cite>x</cite> and <cite>y</cite> must have the data type.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>condition</strong> (<em>Block of triton.bool</em>) – When True (nonzero), yield x, otherwise yield y.</p></li>
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<li><p><strong>x</strong> – values selected at indices where condition is True.</p></li>
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<li><p><strong>y</strong> – values selected at indices where condition is False.</p></li>
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<li><p><strong>builder</strong> (<em>triton.ir.builder</em>) – IR builder to generate code into, optional from within @triton.jit functions</p></li>
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</ul>
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</dd>
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</dl>
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