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MindSpore Signal+ 使用手册
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<li class="toctree-l3 current"><a class="current reference internal" href="#">HashtableLookup</a></li>
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<li class="toctree-l3"><a class="reference internal" href="instancenorm.html">InstanceNorm</a></li>
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<li class="toctree-l3"><a class="reference internal" href="invert_permutation.html">InvertPermutation</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="lpnormalization.html">LpNormalization</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="matmul_fusion.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">MulFusion</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="ones_like.html">OnesLike</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="ragged_range.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="rsqrt_grad.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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<a href="../../_sources/functionlib/dsplib/hashtablelookup.rst.txt" rel="nofollow"> 查看页面源码</a>
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<section id="hashtablelookup">
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<h1>HashtableLookup<a class="headerlink" href="#hashtablelookup" title="此标题的永久链接"></a></h1>
|
||
<p>根据输入的键值在已排序的键数组中执行二分查找，返回对应的字符串值以及查找命中标记。</p>
|
||
<p>虽然名为 <cite>HashtableLookup</cite>，但实际使用二分查找（<cite>bsearch</cite>）算法，而非哈希表。要求 <cite>keys_tensor</cite> 必须已按升序排序。</p>
|
||
<div class="math notranslate nohighlight">
|
||
\[\begin{split}\forall i \in [0, input\_size), \quad
|
||
\begin{cases}
|
||
\text{if } \exists j \in [0, keys\_size) \text{ s.t. } keys[j] = input[i], &
|
||
\begin{cases}
|
||
output[i] \leftarrow values[j] \\
|
||
hits[i] \leftarrow 1
|
||
\end{cases} \\[10pt]
|
||
\text{else}, &
|
||
\begin{cases}
|
||
output[i] \leftarrow \text{空字符串} \\
|
||
hits[i] \leftarrow 0
|
||
\end{cases}
|
||
\end{cases}\end{split}\]</div>
|
||
<dl class="simple">
|
||
<dt>输入：</dt><dd><ul class="simple">
|
||
<li><p><strong>input_tensor</strong> - 要查找的键数组地址（int32类型）。</p></li>
|
||
<li><p><strong>keys_tensor</strong> - 已排序的键数组地址（int32类型，必须按升序排序）。</p></li>
|
||
<li><p><strong>values_tensor</strong> - 值数组地址（字符串tensor，与keys_tensor一一对应）。</p></li>
|
||
<li><p><strong>input_size</strong> - 输入键数组的元素个数。</p></li>
|
||
<li><p><strong>keys_size</strong> - 键数组的元素个数（等于values_tensor中字符串的个数）。</p></li>
|
||
<li><p><strong>core_mask（可选）</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_tensor</strong> - 查找结果输出地址（字符串tensor，与input_tensor长度相同）。</p></li>
|
||
<li><p><strong>hits_tensor</strong> - 命中标记输出地址（uint8类型，1表示找到，0表示未找到）。</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int32键类型，字符串值类型</p></li>
|
||
<li><p>MT7004 支持int32键类型，字符串值类型</p></li>
|
||
<li><p>keys_tensor 必须已按升序排序，否则查找结果不正确</p></li>
|
||
<li><p>使用二分查找算法，时间复杂度为 O(log n)</p></li>
|
||
<li><p>如果查找失败，output_tensor 对应位置为空字符串，hits_tensor 对应位置为0</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.i32_hashtablelookup_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">i32_hashtablelookup_s</span></span></span><span class="sig-paren">(</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">input_tensor</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">keys_tensor</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">values_tensor</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output_tensor</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">hits_tensor</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">input_size</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">keys_size</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.i32_hashtablelookup_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd><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"><stdio.h></span>
|
||
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><hashtablelookup.h></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">int</span><span class="w"> </span><span class="o">*</span><span class="n">input_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xA0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//input在DDR空间</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">keys_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xB0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//已排序的键数组</span>
|
||
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="n">values_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xC0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//字符串值数组</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="n">output_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xD0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//输出字符串数组</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="n">hits_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xE0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//命中标记数组</span>
|
||
<span class="linenos">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">input_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">100</span><span class="p">;</span><span class="w"> </span><span class="c1">//输入键的个数</span>
|
||
<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">keys_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">50</span><span class="p">;</span><span class="w"> </span><span class="c1">//键值对的个数</span>
|
||
<span class="linenos">13</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">14</span>
|
||
<span class="hll"><span class="linenos">15</span><span class="w"> </span><span class="n">i32_hashtablelookup_s</span><span class="p">(</span><span class="n">input_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">keys_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">values_tensor</span><span class="p">,</span>
|
||
</span><span class="hll"><span class="linenos">16</span><span class="w"> </span><span class="n">output_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">hits_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">input_size</span><span class="p">,</span>
|
||
</span><span class="hll"><span class="linenos">17</span><span class="w"> </span><span class="n">keys_size</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">);</span>
|
||
</span><span class="linenos">18</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">19</span><span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<p><strong>私有存储版本：</strong></p>
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i32_hashtablelookup_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">i32_hashtablelookup_p</span></span></span><span class="sig-paren">(</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">input_tensor</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">keys_tensor</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">values_tensor</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">output_tensor</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">hits_tensor</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">input_size</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">keys_size</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i32_hashtablelookup_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd><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"><stdio.h></span>
|
||
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><hashtablelookup.h></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">int</span><span class="w"> </span><span class="o">*</span><span class="n">input_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10810000</span><span class="p">;</span><span class="w"> </span><span class="c1">//input在L2空间</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">keys_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10820000</span><span class="p">;</span><span class="w"> </span><span class="c1">//已排序的键数组</span>
|
||
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="n">values_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10830000</span><span class="p">;</span><span class="w"> </span><span class="c1">//字符串值数组</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="n">output_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10840000</span><span class="p">;</span><span class="w"> </span><span class="c1">//输出字符串数组</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="n">hits_tensor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10850000</span><span class="p">;</span><span class="w"> </span><span class="c1">//命中标记数组</span>
|
||
<span class="linenos">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">input_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">100</span><span class="p">;</span><span class="w"> </span><span class="c1">//输入键的个数</span>
|
||
<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">keys_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">50</span><span class="p">;</span><span class="w"> </span><span class="c1">//键值对的个数</span>
|
||
<span class="linenos">13</span>
|
||
<span class="hll"><span class="linenos">14</span><span class="w"> </span><span class="n">i32_hashtablelookup_p</span><span class="p">(</span><span class="n">input_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">keys_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">values_tensor</span><span class="p">,</span>
|
||
</span><span class="hll"><span class="linenos">15</span><span class="w"> </span><span class="n">output_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">hits_tensor</span><span class="p">,</span><span class="w"> </span><span class="n">input_size</span><span class="p">,</span>
|
||
</span><span class="hll"><span class="linenos">16</span><span class="w"> </span><span class="n">keys_size</span><span class="p">);</span>
|
||
</span><span class="linenos">17</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">18</span><span class="p">}</span>
|
||
</pre></div>
|
||
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