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MindSpore Signal+ 使用手册
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/index.html">快速入门</a></li>
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<li class="toctree-l3 current"><a class="current reference internal" href="#">DynamicQuant</a></li>
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<li class="toctree-l3"><a class="reference internal" href="fake_quant_with_min_max_vars.html">FakeQuantWithMinMaxVars</a></li>
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<li class="toctree-l3"><a class="reference internal" href="fake_quant_with_min_max_vars_per_channel.html">FakeQuantWithMinMaxVarsPerChannel</a></li>
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<li class="toctree-l3"><a class="reference internal" href="flatten.html">Flatten</a></li>
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<li class="toctree-l3"><a class="reference internal" href="flattengrad.html">FlattenGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="log1p.html">Log1p</a></li>
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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="logical_not.html">LogicalNot</a></li>
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<li class="toctree-l3"><a class="reference internal" href="logsoftmax.html">LogSoftmax</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lpnormalization.html">LpNormalization</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lrn.html">Lrn</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lsh_projection.html">LshProjection</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="lstmgraddata.html">LstmGradData</a></li>
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<li class="toctree-l3"><a class="reference internal" href="lstmgradweight.html">LstmGradWeight</a></li>
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<li class="toctree-l3"><a class="reference internal" href="matmulfusion.html">MatMulFusion</a></li>
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<li class="toctree-l3"><a class="reference internal" href="maximum.html">Maximum</a></li>
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<li class="toctree-l3"><a class="reference internal" href="maximumgrad.html">Maximumgrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="maxpoolfusion.html">MaxPoolFusion</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="minimum.html">Minimum</a></li>
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<li class="toctree-l3"><a class="reference internal" href="minimumgrad.html">Minimumgrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="mul.html">Mul</a></li>
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<li class="toctree-l3"><a class="reference internal" href="mulgrad.html">Mulgrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="neg.html">Neg</a></li>
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<li class="toctree-l3"><a class="reference internal" href="neg_grad.html">NegGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="nllloss.html">NLLLoss</a></li>
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<li class="toctree-l3"><a class="reference internal" href="nlllossgrad.html">NLLLossGrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="non_max_suppression.html">NonMaxSuppression</a></li>
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<li class="toctree-l3"><a class="reference internal" href="nonzero.html">NonZero</a></li>
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<li class="toctree-l3"><a class="reference internal" href="not_equal.html">NotEqual</a></li>
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<li class="toctree-l3"><a class="reference internal" href="onehot.html">OneHot</a></li>
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<li class="toctree-l3"><a class="reference internal" href="padfusion.html">PadFusion</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="priorbox.html">Priorbox</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="raggedrange.html">RaggedRange</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="real_div.html">RealDiv</a></li>
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<li class="toctree-l3"><a class="reference internal" href="reciprocal.html">Reciprocal</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="reducescatter.html">ReduceScatter</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="reverse_sequence.html">ReverseSequence</a></li>
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<li class="toctree-l3"><a class="reference internal" href="reversev2.html">ReverseV2</a></li>
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<li class="toctree-l3"><a class="reference internal" href="round.html">Round</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="rsqrtgrad.html">Rsqrtgrad</a></li>
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<li class="toctree-l3"><a class="reference internal" href="scale_fusion.html">ScaleFusion</a></li>
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<li class="toctree-l3"><a class="reference internal" href="scatter_elements.html">ScatterElements</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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<li class="toctree-l3"><a class="reference internal" href="sigmoidcrossentropywithlogitsgrad.html">SigmoidCrossEntropyWithLogitsGrad</a></li>
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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 FP32 输入张量按给定的 scale 和 zero point（zp）动态量化为 INT8 输出张量。
|
||
支持按整张量量化或按指定轴分段量化（per-axis dynamic quantization）。</p>
|
||
<div class="math notranslate nohighlight">
|
||
\[q_i = \mathrm{clip}\left( \mathrm{round}\left( \frac{x_i}{scale} + zp \right), q_{min}, q_{max} \right)\]</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><span class="math notranslate nohighlight">\(q_{min} = -128\)</span></p></li>
|
||
<li><p><span class="math notranslate nohighlight">\(q_{max} = 127\)</span></p></li>
|
||
</ul>
|
||
<p>当输入为 <span class="math notranslate nohighlight">\(+\infty\)</span> 或 <span class="math notranslate nohighlight">\(-\infty\)</span> 时，输出分别饱和到最大或最小量化值。</p>
|
||
<p>—</p>
|
||
<dl class="simple">
|
||
<dt>输入：</dt><dd><ul class="simple">
|
||
<li><p><strong>real_values</strong> - 输入 FP32 数据地址</p></li>
|
||
<li><p><strong>element_num</strong> - 输入元素总数</p></li>
|
||
<li><p><strong>scale</strong> - 量化 scale 数组地址</p></li>
|
||
<li><p><strong>zp</strong> - 量化 zero point 数组地址</p></li>
|
||
<li><p><strong>segment_num</strong> - 分段数量（用于按轴量化）</p></li>
|
||
<li><dl class="simple">
|
||
<dt><strong>axis_num</strong> - 量化轴标识</dt><dd><ul>
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">0</span></code>：整张量量化（per-tensor）</p></li>
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">!=0</span></code>：按轴分段量化（per-axis）</p></li>
|
||
</ul>
|
||
</dd>
|
||
</dl>
|
||
</li>
|
||
</ul>
|
||
</dd>
|
||
<dt>输出：</dt><dd><ul class="simple">
|
||
<li><p><strong>quant_values</strong> - 输出 INT8 量化结果地址</p></li>
|
||
</ul>
|
||
</dd>
|
||
</dl>
|
||
<p>—</p>
|
||
<dl class="simple">
|
||
<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>
|
||
<p>—</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">备注</p>
|
||
<ul class="simple">
|
||
<li><p>当前算子仅支持 <strong>FP32Fp16 → INT8</strong> 的动态量化</p></li>
|
||
<li><p>当 <code class="docutils literal notranslate"><span class="pre">axis_num</span> <span class="pre">=</span> <span class="pre">0</span></code> 时，仅使用 <code class="docutils literal notranslate"><span class="pre">scale[0]</span></code> 与 <code class="docutils literal notranslate"><span class="pre">zp[0]</span></code> 进行整张量量化</p></li>
|
||
<li><p>当 <code class="docutils literal notranslate"><span class="pre">axis_num</span> <span class="pre">!=</span> <span class="pre">0</span></code> 时，输入按 <code class="docutils literal notranslate"><span class="pre">segment_num</span></code> 进行分段，每段使用对应的 <code class="docutils literal notranslate"><span class="pre">scale[i]</span></code> 与 <code class="docutils literal notranslate"><span class="pre">zp[i]</span></code></p></li>
|
||
<li><p>分段大小通过 <code class="docutils literal notranslate"><span class="pre">UP_DIV(element_num,</span> <span class="pre">segment_num)</span></code> 计算，最后一段自动处理剩余元素</p></li>
|
||
<li><p>量化结果会被限制在 <code class="docutils literal notranslate"><span class="pre">[-128,</span> <span class="pre">127]</span></code> 范围内</p></li>
|
||
</ul>
|
||
</div>
|
||
<p>—</p>
|
||
<p><strong>私有存储版本：</strong></p>
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.fp_QuantData_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_QuantData_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">int</span></span><span class="w"> </span><span class="n"><span class="pre">element_num</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">scale</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></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">segment_num</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">axis_num</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_QuantData_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_QuantData_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_QuantData_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">half</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">int</span></span><span class="w"> </span><span class="n"><span class="pre">element_num</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">scale</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></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">segment_num</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">axis_num</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_QuantData_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<p>—</p>
|
||
<p><strong>C调用示例：</strong></p>
|
||
<blockquote>
|
||
<div><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="cp">#include</span><span class="w"> </span><span class="cpf"><quant.h></span>
|
||
<span class="linenos"> 3</span>
|
||
<span class="linenos"> 4</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"> 5</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">0x10000000</span><span class="p">;</span><span class="w"> </span><span class="c1">// FP32 输入</span>
|
||
<span class="linenos"> 6</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">0x10004000</span><span class="p">;</span><span class="w"> </span><span class="c1">// INT8 输出</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="n">scale</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="mf">0.1f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.12f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.11f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.09f</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">zp</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="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">};</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">element_num</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">10</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">segment_num</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">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">axis_num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
</span><span class="linenos">12</span>
|
||
<span class="linenos">13</span><span class="w"> </span><span class="n">fp_QuantData_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">element_num</span><span class="p">,</span>
|
||
<span class="linenos">14</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">segment_num</span><span class="p">,</span><span class="w"> </span><span class="n">axis_num</span><span class="p">);</span>
|
||
<span class="linenos">15</span>
|
||
<span class="linenos">16</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">17</span><span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</div></blockquote>
|
||
<p>—</p>
|
||
<p><strong>共享存储版本：</strong></p>
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.fp_QuantData_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_QuantData_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">int</span></span><span class="w"> </span><span class="n"><span class="pre">element_num</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">scale</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></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">segment_num</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">axis_num</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_QuantData_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_QuantData_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_QuantData_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">half</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">int</span></span><span class="w"> </span><span class="n"><span class="pre">element_num</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">scale</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></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">segment_num</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">axis_num</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_QuantData_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<p>—</p>
|
||
<p><strong>C调用示例：</strong></p>
|
||
<blockquote>
|
||
<div><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="cp">#include</span><span class="w"> </span><span class="cpf"><quant.h></span>
|
||
<span class="linenos"> 3</span>
|
||
<span class="linenos"> 4</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"> 5</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">0x10000000</span><span class="p">;</span><span class="w"> </span><span class="c1">// FP32 输入</span>
|
||
<span class="linenos"> 6</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">0x10004000</span><span class="p">;</span><span class="w"> </span><span class="c1">// INT8 输出</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="n">scale</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="mf">0.1f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.12f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.11f</span><span class="p">,</span><span class="w"> </span><span class="mf">0.09f</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">zp</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="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">};</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">element_num</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">10</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">segment_num</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">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">axis_num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">,</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><span class="linenos">12</span>
|
||
<span class="linenos">13</span><span class="w"> </span><span class="n">fp_QuantData_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">element_num</span><span class="p">,</span>
|
||
<span class="linenos">14</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">segment_num</span><span class="p">,</span><span class="w"> </span><span class="n">axis_num</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">);</span>
|
||
<span class="linenos">15</span>
|
||
<span class="linenos">16</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">17</span><span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</div></blockquote>
|
||
<p>—</p>
|
||
<p><strong>实现说明：</strong></p>
|
||
<ul class="simple">
|
||
<li><p>当 <code class="docutils literal notranslate"><span class="pre">axis_num</span> <span class="pre">==</span> <span class="pre">0</span></code> 时：</p>
|
||
<ul>
|
||
<li><p>对整个输入数组执行一次统一量化</p></li>
|
||
<li><p>等价于 per-tensor quantization</p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p>当 <code class="docutils literal notranslate"><span class="pre">axis_num</span> <span class="pre">!=</span> <span class="pre">0</span></code> 时：</p>
|
||
<ul>
|
||
<li><p>输入数据按 <code class="docutils literal notranslate"><span class="pre">segment_num</span></code> 均分为多个分段</p></li>
|
||
<li><p>每个分段使用独立的 <code class="docutils literal notranslate"><span class="pre">scale[i]</span></code> 与 <code class="docutils literal notranslate"><span class="pre">zp[i]</span></code></p></li>
|
||
<li><p>等价于 per-axis dynamic quantization</p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p>核心量化过程由 <code class="docutils literal notranslate"><span class="pre">DoQuantizeFp32ToInt8</span></code> 完成，包括：</p>
|
||
<ul>
|
||
<li><p>反 scale 计算</p></li>
|
||
<li><p>四舍五入</p></li>
|
||
<li><p>饱和裁剪</p></li>
|
||
<li><p>INF 特殊值处理</p></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</section>
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||
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