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MindSpore Signal+ 使用手册
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<li class="toctree-l3"><a class="reference internal" href="loggrad.html">LogGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lstm.html">LSTM</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lstmgrad.html">LstmGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="maxpoolgrad.html">MaxPoolGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="mfcc.html">MFCC</a></li>
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<li class="toctree-l3"><a class="reference internal" href="power_grad.html">PowerGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="prelufusion.html">PReLUFusion</a></li>
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<li class="toctree-l3"><a class="reference internal" href="quantdtypecast.html">QuantDTypeCast</a></li>
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<li class="toctree-l3"><a class="reference internal" href="random_normal.html">RandomNormal</a></li>
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<li class="toctree-l3"><a class="reference internal" href="random_standard_normal.html">RandomStandardNormal</a></li>
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<li class="toctree-l3"><a class="reference internal" href="range.html">Range</a></li>
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<li class="toctree-l3"><a class="reference internal" href="rank.html">Rank</a></li>
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<li class="toctree-l3"><a class="reference internal" href="reduce.html">Reduce</a></li>
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<li class="toctree-l3"><a class="reference internal" href="reshape.html">Reshape</a></li>
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<li class="toctree-l3"><a class="reference internal" href="resize.html">Resize</a></li>
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<li class="toctree-l3"><a class="reference internal" href="resizegrad.html">Resizegrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="rsqrt.html">Rsqrt</a></li>
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<li class="toctree-l3"><a class="reference internal" href="rsqrt_grad.html">RsqrtGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="scatter_nd.html">ScatterNd</a></li>
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<li class="toctree-l3"><a class="reference internal" href="scatter_nd_update.html">ScatterNdUpdate</a></li>
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<li class="toctree-l3"><a class="reference internal" href="select.html">Select</a></li>
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<li class="toctree-l3"><a class="reference internal" href="sgd.html">SGD</a></li>
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<li class="toctree-l3"><a class="reference internal" href="shape.html">Shape</a></li>
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<li class="toctree-l3"><a class="reference internal" href="sigmoidcrossentropywithlogits.html">SigmoidCrossEntropyWithLogits</a></li>
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<a href="../../_sources/functionlib/dsplib/dynamic_quant.rst.txt" rel="nofollow"> 查看页面源码</a>
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<section id="dynamicquant">
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<h1>DynamicQuant<a class="headerlink" href="#dynamicquant" title="此标题的永久链接"></a></h1>
|
||
<p>将浮点输入张量按给定的 scale 和 zero point 量化为 INT8 输出张量。</p>
|
||
<div class="math notranslate nohighlight">
|
||
\[q_i = \mathrm{clip}\left( \mathrm{round}\left( x_i \times \frac{1}{scale} + zp \right), -128, 127 \right)\]</div>
|
||
<p>其中：</p>
|
||
<ul class="simple">
|
||
<li><p><span class="math notranslate nohighlight">\(x_i\)</span> 为输入浮点值</p></li>
|
||
<li><p><span class="math notranslate nohighlight">\(scale\)</span> 为量化比例因子</p></li>
|
||
<li><p><span class="math notranslate nohighlight">\(zp\)</span> 为零点（zero point）</p></li>
|
||
<li><p>当输入为 <span class="math notranslate nohighlight">\(+\infty\)</span> 时，输出饱和到 127</p></li>
|
||
<li><p>当输入为 <span class="math notranslate nohighlight">\(-\infty\)</span> 时，输出饱和到 -128</p></li>
|
||
</ul>
|
||
<dl class="simple">
|
||
<dt>输入：</dt><dd><ul class="simple">
|
||
<li><p><strong>real_values</strong> - 输入浮点数据地址。</p></li>
|
||
<li><p><strong>quant_values</strong> - 输出 INT8 量化结果地址。</p></li>
|
||
<li><p><strong>scale</strong> - 量化比例因子（标量）。</p></li>
|
||
<li><p><strong>zp</strong> - 量化零点（标量，int32 类型）。</p></li>
|
||
<li><p><strong>size</strong> - 输入元素总数。</p></li>
|
||
<li><p><strong>min_value</strong> - 量化下界（通常为 -128）。</p></li>
|
||
<li><p><strong>max_value</strong> - 量化上界（通常为 127）。</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>quant_values</strong> - 量化后的 INT8 结果。</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 fp32 → int8</p></li>
|
||
<li><p>MT7004 支持 fp32, fp16 → int8</p></li>
|
||
<li><p>量化结果被限制在 <code class="docutils literal notranslate"><span class="pre">[min_value,</span> <span class="pre">max_value]</span></code> 范围内（通常为 <code class="docutils literal notranslate"><span class="pre">[-128,</span> <span class="pre">127]</span></code>）</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_dynamic_quant_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_dynamic_quant_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">real_values</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">quant_values</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">scale</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">zp</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">size</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">min_value</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">max_value</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="sig-paren">)</span><a class="headerlink" href="#c.fp_dynamic_quant_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_dynamic_quant_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_dynamic_quant_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">real_values</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">quant_values</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">scale</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">zp</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">size</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">min_value</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">max_value</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="sig-paren">)</span><a class="headerlink" href="#c.hp_dynamic_quant_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="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span>
|
||
<span class="linenos"> 2</span>
|
||
<span class="linenos"> 3</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"> 4</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="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x81000000</span><span class="p">;</span>
|
||
<span class="linenos"> 5</span><span class="w"> </span><span class="kt">int8_t</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">int8_t</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x82000000</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="n">scale</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0.1f</span><span class="p">;</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">zp</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"> 8</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1024</span><span class="p">;</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">min_value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">-128</span><span class="p">;</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">max_value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">127</span><span class="p">;</span>
|
||
<span class="linenos">11</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="mh">0xff</span><span class="p">;</span>
|
||
<span class="linenos">12</span>
|
||
<span class="hll"><span class="linenos">13</span><span class="w"> </span><span class="n">fp_dynamic_quant_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">scale</span><span class="p">,</span><span class="w"> </span><span class="n">zp</span><span class="p">,</span><span class="w"> </span><span class="n">size</span><span class="p">,</span><span class="w"> </span><span class="n">min_value</span><span class="p">,</span><span class="w"> </span><span class="n">max_value</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">);</span>
|
||
</span><span class="linenos">14</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">15</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_dynamic_quant_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_dynamic_quant_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">real_values</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">quant_values</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">scale</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">zp</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">size</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">min_value</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">max_value</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_dynamic_quant_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_dynamic_quant_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_dynamic_quant_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">real_values</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">quant_values</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="n"><span class="pre">scale</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">zp</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">size</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">min_value</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n"><span class="pre">max_value</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_dynamic_quant_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="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span>
|
||
<span class="linenos"> 2</span>
|
||
<span class="linenos"> 3</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"> 4</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="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10010000</span><span class="p">;</span>
|
||
<span class="linenos"> 5</span><span class="w"> </span><span class="kt">int8_t</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">int8_t</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10020000</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="n">scale</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0.1f</span><span class="p">;</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">zp</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"> 8</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1024</span><span class="p">;</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">min_value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">-128</span><span class="p">;</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">int32_t</span><span class="w"> </span><span class="n">max_value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">127</span><span class="p">;</span>
|
||
<span class="linenos">11</span>
|
||
<span class="hll"><span class="linenos">12</span><span class="w"> </span><span class="n">fp_dynamic_quant_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">scale</span><span class="p">,</span><span class="w"> </span><span class="n">zp</span><span class="p">,</span><span class="w"> </span><span class="n">size</span><span class="p">,</span><span class="w"> </span><span class="n">min_value</span><span class="p">,</span><span class="w"> </span><span class="n">max_value</span><span class="p">);</span>
|
||
</span><span class="linenos">13</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">14</span><span class="p">}</span>
|
||
</pre></div>
|
||
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