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<section id="instancenorm">
<h1>InstanceNorm<a class="headerlink" href="#instancenorm" title="此标题的永久链接"></a></h1>
<p>对输入张量按 <strong>实例Instance+ 通道Channel</strong> 维度执行归一化操作。
该算子在每个样本的每个通道内,基于 <code class="docutils literal notranslate"><span class="pre">inner_size</span></code> 维度计算均值与方差,
并结合可学习参数 <code class="docutils literal notranslate"><span class="pre">gamma</span></code><code class="docutils literal notranslate"><span class="pre">beta</span></code> 完成缩放与偏移。</p>
<div class="math notranslate nohighlight">
\[ \begin{align}\begin{aligned}\mu_{b,c} = \frac{1}{N} \sum_{i=1}^{N} x_{b,c,i}\\\sigma^2_{b,c} = \frac{1}{N} \sum_{i=1}^{N} x_{b,c,i}^2 - \mu_{b,c}^2\\y_{b,c,i} = \left( \frac{x_{b,c,i} - \mu_{b,c}}{\sqrt{\sigma^2_{b,c} + \epsilon}} \right)
\cdot \gamma_c + \beta_c\end{aligned}\end{align} \]</div>
<p>其中:</p>
<ul class="simple">
<li><p><span class="math notranslate nohighlight">\(b\)</span> 表示 batch 维度</p></li>
<li><p><span class="math notranslate nohighlight">\(c\)</span> 表示通道维度</p></li>
<li><p><span class="math notranslate nohighlight">\(i\)</span> 表示 <code class="docutils literal notranslate"><span class="pre">inner_size</span></code> 维度</p></li>
<li><p><span class="math notranslate nohighlight">\(\gamma_c\)</span><span class="math notranslate nohighlight">\(\beta_c\)</span> 为通道级缩放与偏移参数</p></li>
</ul>
<dl class="simple">
<dt>输入:</dt><dd><ul class="simple">
<li><p><strong>input</strong> - 输入数据地址,形状为 <code class="docutils literal notranslate"><span class="pre">[batch,</span> <span class="pre">channel,</span> <span class="pre">inner_size]</span></code></p></li>
<li><dl class="simple">
<dt><strong>params</strong> - 参数打包成数组,格式如下:</dt><dd><ul>
<li><p><strong>gamma</strong> - 缩放参数地址,长度为 <code class="docutils literal notranslate"><span class="pre">channel</span></code></p></li>
<li><p><strong>beta</strong> - 偏移参数地址,长度为 <code class="docutils literal notranslate"><span class="pre">channel</span></code></p></li>
<li><p><strong>batch</strong> - batch 数。</p></li>
<li><p><strong>channel</strong> - 通道数。</p></li>
<li><p><strong>inner_size</strong> - 每个通道内的归一化长度。</p></li>
</ul>
</dd>
</dl>
</li>
<li><p><strong>epsilon</strong> - 数值稳定因子。</p></li>
<li><p><strong>core_mask</strong> - 核掩码(仅适用于共享存储版本)。</p></li>
</ul>
</dd>
<dt>输出:</dt><dd><ul class="simple">
<li><p><strong>output</strong> - InstanceNorm 计算结果地址。</p></li>
</ul>
</dd>
<dt>支持平台:</dt><dd><p><code class="docutils literal notranslate"><span class="pre">FT78NE</span></code>
<code class="docutils literal notranslate"><span class="pre">MT7004</span></code></p>
</dd>
</dl>
<div class="admonition note">
<p class="admonition-title">备注</p>
<ul class="simple">
<li><p>FT78NE 支持 <code class="docutils literal notranslate"><span class="pre">fp32</span></code> 类型</p></li>
<li><p>MT7004 支持 <code class="docutils literal notranslate"><span class="pre">fp16</span></code><code class="docutils literal notranslate"><span class="pre">fp32</span></code> 类型</p></li>
<li><p>归一化统计量仅在单个样本、单个通道内计算</p></li>
</ul>
</div>
<p><strong>共享存储版本:</strong></p>
<dl class="c function">
<dt class="sig sig-object c" id="c.fp_instance_norm_s">
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">fp_instance_norm_s</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">input</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output</span></span>, <span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">params</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">epsilon</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_instance_norm_s" title="永久链接至目标"></a><br /></dt>
<dd></dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.hp_instance_norm_s">
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">hp_instance_norm_s</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">input</span></span>, <span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output</span></span>, <span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">params</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">epsilon</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_instance_norm_s" title="永久链接至目标"></a><br /></dt>
<dd></dd></dl>
<p><strong>C调用示例</strong></p>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="c1">// FT78NE 示例</span>
<span class="linenos"> 2</span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;stdio.h&gt;</span>
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;instancenorm.h&gt;</span>
<span class="linenos"> 4</span>
<span class="linenos"> 5</span><span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">argc</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="o">*</span><span class="w"> </span><span class="n">argv</span><span class="p">[])</span><span class="w"> </span><span class="p">{</span>
<span class="linenos"> 6</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">input</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x81000000</span><span class="p">;</span>
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">gamma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x82000000</span><span class="p">;</span>
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">beta</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x83000000</span><span class="p">;</span>
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">output</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x84000000</span><span class="p">;</span>
<span class="linenos">10</span>
<span class="linenos">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">batch</span><span class="p">;</span>
<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span>
<span class="linenos">13</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">inner_size</span><span class="p">;</span>
<span class="linenos">14</span>
<span class="linenos">15</span><span class="w"> </span><span class="n">batch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span>
<span class="linenos">16</span><span class="w"> </span><span class="n">channel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">16</span><span class="p">;</span>
<span class="hll"><span class="linenos">17</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">8</span><span class="p">;</span>
</span><span class="hll"><span class="linenos">18</span>
</span><span class="linenos">19</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="n">epsilon</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0.001</span><span class="p">;</span>
<span class="linenos">20</span>
<span class="linenos">21</span><span class="w"> </span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
<span class="linenos">22</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">gamma</span><span class="p">;</span>
<span class="linenos">23</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">beta</span><span class="p">;</span>
<span class="linenos">24</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">batch</span><span class="p">;</span>
<span class="linenos">25</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">channel</span><span class="p">;</span>
<span class="linenos">26</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">inner_size</span><span class="p">;</span>
<span class="linenos">27</span>
<span class="linenos">28</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">j</span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">;</span>
<span class="linenos">29</span><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">batch</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">30</span><span class="w"> </span><span class="n">gamma</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">31</span><span class="w"> </span><span class="n">beta</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">32</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">33</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">k</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">k</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">inner_size</span><span class="p">;</span><span class="w"> </span><span class="n">k</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">34</span><span class="w"> </span><span class="n">input</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">channel</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">k</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="p">(</span><span class="n">RAND_MAX</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1.0</span><span class="p">);</span>
<span class="linenos">35</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">36</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">37</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">38</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span><span class="w"> </span><span class="o">++</span><span class="n">i</span><span class="p">){</span>
<span class="linenos">39</span><span class="w"> </span><span class="n">gamma</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">((</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="n">RAND_MAX</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<span class="linenos">40</span><span class="w"> </span><span class="n">beta</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">((</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="n">RAND_MAX</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">0.1</span><span class="p">;</span>
<span class="linenos">41</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">42</span>
<span class="linenos">43</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">core_mask</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mb">0b1111</span><span class="p">;</span>
<span class="linenos">44</span><span class="w"> </span><span class="n">fp_instance_norm_s</span><span class="p">(</span><span class="n">input</span><span class="p">,</span><span class="w"> </span><span class="n">output</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">,</span><span class="w"> </span><span class="n">epsilon</span><span class="p">);</span>
<span class="linenos">45</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">46</span><span class="p">}</span>
</pre></div>
</div>
<p><strong>私有存储版本:</strong></p>
<dl class="c function">
<dt class="sig sig-object c" id="c.fp_instance_norm_p">
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">fp_instance_norm_p</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">input</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output</span></span>, <span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">params</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">epsilon</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_instance_norm_p" title="永久链接至目标"></a><br /></dt>
<dd></dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.hp_instance_norm_p">
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">hp_instance_norm_p</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">input</span></span>, <span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output</span></span>, <span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="kt"><span class="pre">long</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">params</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">epsilon</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_instance_norm_p" title="永久链接至目标"></a><br /></dt>
<dd></dd></dl>
<p><strong>C调用示例</strong></p>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="c1">// FT78NE 示例</span>
<span class="linenos"> 2</span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;stdio.h&gt;</span>
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;instancenorm.h&gt;</span>
<span class="linenos"> 4</span>
<span class="linenos"> 5</span><span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">argc</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="o">*</span><span class="w"> </span><span class="n">argv</span><span class="p">[])</span><span class="w"> </span><span class="p">{</span>
<span class="linenos"> 6</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">input</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x10010000</span><span class="p">;</span>
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">gamma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x10020000</span><span class="p">;</span>
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">beta</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x10030000</span><span class="p">;</span>
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">output</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="o">*</span><span class="p">)</span><span class="mh">0x10040000</span><span class="p">;</span>
<span class="linenos">10</span>
<span class="linenos">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">batch</span><span class="p">;</span>
<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span>
<span class="linenos">13</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">inner_size</span><span class="p">;</span>
<span class="linenos">14</span>
<span class="linenos">15</span><span class="w"> </span><span class="n">batch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span>
<span class="hll"><span class="linenos">16</span><span class="w"> </span><span class="n">channel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">16</span><span class="p">;</span>
</span><span class="hll"><span class="linenos">17</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">8</span><span class="p">;</span>
</span><span class="linenos">18</span>
<span class="linenos">19</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="n">epsilon</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0.001</span><span class="p">;</span>
<span class="linenos">20</span>
<span class="linenos">21</span><span class="w"> </span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
<span class="linenos">22</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">gamma</span><span class="p">;</span>
<span class="linenos">23</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">beta</span><span class="p">;</span>
<span class="linenos">24</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">batch</span><span class="p">;</span>
<span class="linenos">25</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">channel</span><span class="p">;</span>
<span class="linenos">26</span><span class="w"> </span><span class="n">param</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">inner_size</span><span class="p">;</span>
<span class="linenos">27</span>
<span class="linenos">28</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">j</span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">;</span>
<span class="linenos">29</span><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">batch</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">30</span><span class="w"> </span><span class="n">gamma</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">31</span><span class="w"> </span><span class="n">beta</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">32</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">33</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">k</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">k</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">inner_size</span><span class="p">;</span><span class="w"> </span><span class="n">k</span><span class="o">++</span><span class="p">){</span>
<span class="linenos">34</span><span class="w"> </span><span class="n">input</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">channel</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">inner_size</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">k</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="p">(</span><span class="n">RAND_MAX</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1.0</span><span class="p">);</span>
<span class="linenos">35</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">36</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">37</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">38</span><span class="w"> </span><span class="k">for</span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">channel</span><span class="p">;</span><span class="w"> </span><span class="o">++</span><span class="n">i</span><span class="p">){</span>
<span class="linenos">39</span><span class="w"> </span><span class="n">gamma</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">((</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="n">RAND_MAX</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<span class="linenos">40</span><span class="w"> </span><span class="n">beta</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">((</span><span class="kt">float</span><span class="p">)</span><span class="n">rand</span><span class="p">()</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="n">RAND_MAX</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">0.1</span><span class="p">;</span>
<span class="linenos">41</span><span class="w"> </span><span class="p">}</span>
<span class="linenos">42</span>
<span class="linenos">43</span><span class="w"> </span><span class="n">fp_instance_norm_p</span><span class="p">(</span><span class="n">input</span><span class="p">,</span><span class="w"> </span><span class="n">output</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="p">,</span><span class="w"> </span><span class="n">epsilon</span><span class="p">);</span>
<span class="linenos">44</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="linenos">45</span><span class="p">}</span>
</pre></div>
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