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<a href="../../_sources/functionlib/dsplib/reverse_sequence.rst.txt" rel="nofollow"> 查看页面源码</a>
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<section id="reversesequence">
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<h1>ReverseSequence<a class="headerlink" href="#reversesequence" title="Link to this heading"></a></h1>
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<p>对输入序列进行部分反转。</p>
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<dl class="simple">
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<dt>输入：</dt><dd><ul class="simple">
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<li><p><strong>src</strong> - 需反转数据的地址</p></li>
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<li><p><strong>seq_lengths</strong> - 指定反转长度，为一维向量。</p></li>
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<li><p><strong>param</strong> - 算子计算所需参数的结构体。其各成员见下述。</p></li>
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<li><p><strong>core_mask</strong> - 核掩码。</p></li>
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</ul>
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</dd>
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</dl>
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<p><strong>ReverseSequenceParameter定义：</strong></p>
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<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="k">typedef</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="nc">ReverseSequenceParameter</span><span class="w"> </span><span class="p">{</span>
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<span class="linenos"> 2</span><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">shape_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 输入和输出张量的形状</span>
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<span class="linenos"> 3</span><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">strides_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 一个记录张量每一维步长的数组</span>
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<span class="linenos"> 4</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">seq_dim_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 指定反转的维度</span>
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<span class="linenos"> 5</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">batch_dim_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 指定切片维度</span>
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<span class="linenos"> 6</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ndim_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 输入和输出张量的维度</span>
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<span class="linenos"> 7</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">type_size_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 输入和输出张量数据类型的长度</span>
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<span class="linenos"> 8</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">copy_elem_num_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 在inner_count循环中一次应被拷贝的元素数目</span>
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<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">outer_stride_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 外层元素间的步长</span>
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<span class="linenos">10</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">outer_count_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 外层元素数</span>
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<span class="linenos">11</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">inner_stride_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 内层元素间的步长</span>
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<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">inner_count_</span><span class="p">;</span><span class="w"> </span><span class="c1">// 内层元素数</span>
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<span class="linenos">13</span><span class="p">}</span><span class="w"> </span><span class="n">ReverseSequenceParameter</span><span class="p">;</span>
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</pre></div>
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</div>
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<dl class="simple">
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<dt>输出：</dt><dd><ul class="simple">
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<li><p><strong>dst</strong> - 输出地址。</p></li>
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</ul>
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</dd>
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<dt>支持平台：</dt><dd><p><code class="docutils literal notranslate"><span class="pre">FT78NE</span></code>
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<code class="docutils literal notranslate"><span class="pre">MT7004</span></code></p>
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</dd>
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</dl>
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<div class="admonition note">
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<p class="admonition-title">备注</p>
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<ul class="simple">
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<li><p>FT78NE 支持int8, int16, int32, fp32, fp64, cplx64, cplx128</p></li>
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<li><p>MT7004 支持fp16, fp32, int16, int32, cplx64</p></li>
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</ul>
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</div>
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<p><strong>共享/私有存储版本:</strong></p>
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<dl class="c function">
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<dt class="sig sig-object c" id="c.anytype_reverse_sequence_anycore">
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<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">anytype_reverse_sequence_anycore</span></span></span><span class="sig-paren">(</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">src</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">dst</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">seq_lengths</span></span>, <span class="n"><span class="pre">ReverseSequenceParameter</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">param</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.anytype_reverse_sequence_anycore" title="Link to this definition"></a><br /></dt>
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<dd></dd></dl>
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<p>各种数据类型、私有及共享空间版本均使用该函数。对于不同数据类型，改变param中的type_size_参数即可。</p>
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<p><strong>C调用示例：</strong></p>
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<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="kt">void</span><span class="w"> </span><span class="nf">Resize</span><span class="p">(</span><span class="n">ReverseSequenceParameter</span><span class="o">*</span><span class="w"> </span><span class="n">param</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<span class="linenos"> 2</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">strides_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="o">*</span><span class="p">)</span><span class="mh">0xA8020000</span><span class="p">;</span>
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<span class="linenos"> 3</span><span class="w"> </span><span class="n">ComputeStrides</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">strides_</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">ndim_</span><span class="p">);</span>
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<span class="linenos"> 4</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">less_dim</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">batch_dim_</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">seq_dim_</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">seq_dim_</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">batch_dim_</span><span class="p">;</span>
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<span class="linenos"> 5</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">greater_dim</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">batch_dim_</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">seq_dim_</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">seq_dim_</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">batch_dim_</span><span class="p">;</span>
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<span class="linenos"> 6</span><span class="w"> </span><span class="c1">// calculate the size of elements should be copied at one time</span>
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<span class="linenos"> 7</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">copy_elem_num_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CountElementAfterDim</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">greater_dim</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">ndim_</span><span class="p">);</span>
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<span class="linenos"> 8</span><span class="w"> </span><span class="c1">// calculate the number of elements before the less axis and the stride</span>
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<span class="linenos"> 9</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">outer_count_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CountElementBeforeDim</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">less_dim</span><span class="p">);</span>
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<span class="linenos">10</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">outer_stride_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">[</span><span class="n">less_dim</span><span class="p">]</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">CountElementAfterDim</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">less_dim</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">ndim_</span><span class="p">);</span>
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<span class="linenos">11</span><span class="w"> </span><span class="c1">// calculate the number of elements between the less axis and the greater axis and the stride</span>
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<span class="linenos">12</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">inner_count_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<span class="linenos">13</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">;</span>
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<span class="linenos">14</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="n">less_dim</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">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">greater_dim</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<span class="linenos">15</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">inner_count_</span><span class="w"> </span><span class="o">*=</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
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<span class="linenos">16</span><span class="w"> </span><span class="p">}</span>
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<span class="linenos">17</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">inner_stride_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">[</span><span class="n">greater_dim</span><span class="p">]</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">CountElementAfterDim</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">greater_dim</span><span class="p">,</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">ndim_</span><span class="p">);</span>
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<span class="linenos">18</span><span class="p">}</span>
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<span class="linenos">19</span>
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<span class="linenos">20</span><span class="kt">void</span><span class="w"> </span><span class="nf">TestReverseSequenceFp32</span><span class="p">(</span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">shape</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">orig_seq_lengths</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">seq_dim</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">batch_dim</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ndim</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">core_mask</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<span class="linenos">21</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">core_id</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get_core_id</span><span class="p">();</span>
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<span class="linenos">22</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">core_num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GetCoreNum</span><span class="p">(</span><span class="n">core_mask</span><span class="p">);</span>
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<span class="linenos">23</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">logic_core_id</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GetLogicCoreId</span><span class="p">(</span><span class="n">core_mask</span><span class="p">,</span><span class="w"> </span><span class="n">core_id</span><span class="p">);</span>
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<span class="linenos">24</span><span class="w"> </span><span class="kt">float</span><span class="o">*</span><span class="w"> </span><span class="n">input_data</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">0x88000000</span><span class="p">;</span><span class="w"> </span><span class="c1">// 测试私有空间时地址设置在私有空间内即可</span>
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<span class="linenos">25</span><span class="w"> </span><span class="kt">float</span><span class="o">*</span><span class="w"> </span><span class="n">output_data</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">0x98000000</span><span class="p">;</span>
|
||
<span class="linenos">26</span><span class="w"> </span><span class="kt">float</span><span class="o">*</span><span class="w"> </span><span class="n">check</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">0xB8000000</span><span class="p">;</span>
|
||
<span class="linenos">27</span><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">seq_lengths</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="o">*</span><span class="p">)</span><span class="mh">0xC8000000</span><span class="p">;</span>
|
||
<span class="linenos">28</span><span class="w"> </span><span class="n">ReverseSequenceParameter</span><span class="o">*</span><span class="w"> </span><span class="n">param</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">ReverseSequenceParameter</span><span class="o">*</span><span class="p">)</span><span class="mh">0xA8000000</span><span class="p">;</span>
|
||
<span class="linenos">29</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="linenos">30</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">logic_core_id</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="p">{</span>
|
||
<span class="linenos">31</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="o">*</span><span class="p">)</span><span class="mh">0xA8010000</span><span class="p">;</span>
|
||
<span class="linenos">32</span><span class="w"> </span><span class="n">memcpy</span><span class="p">(</span><span class="n">param</span><span class="o">-></span><span class="n">shape_</span><span class="p">,</span><span class="w"> </span><span class="n">shape</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">ndim</span><span class="p">);</span>
|
||
<span class="linenos">33</span><span class="w"> </span><span class="n">memcpy</span><span class="p">(</span><span class="n">seq_lengths</span><span class="p">,</span><span class="w"> </span><span class="n">orig_seq_lengths</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">shape</span><span class="p">[</span><span class="n">batch_dim</span><span class="p">]);</span>
|
||
<span class="linenos">34</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">batch_dim_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">batch_dim</span><span class="p">;</span>
|
||
<span class="linenos">35</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">seq_dim_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">seq_dim</span><span class="p">;</span>
|
||
<span class="linenos">36</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">ndim_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ndim</span><span class="p">;</span>
|
||
<span class="linenos">37</span><span class="w"> </span><span class="n">param</span><span class="o">-></span><span class="n">type_size_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">float</span><span class="p">);</span>
|
||
<span class="linenos">38</span><span class="w"> </span><span class="n">Resize</span><span class="p">(</span><span class="n">param</span><span class="p">);</span>
|
||
<span class="linenos">39</span><span class="w"> </span><span class="p">}</span>
|
||
<span class="linenos">40</span><span class="w"> </span><span class="n">sys_bar</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="n">core_num</span><span class="p">);</span><span class="w"> </span><span class="c1">// 初始化参数完成后进行同步</span>
|
||
<span class="hll"><span class="linenos">41</span><span class="w"> </span><span class="n">anytype_reverse_sequence_anycore</span><span class="p">(</span><span class="n">input_data</span><span class="p">,</span><span class="w"> </span><span class="n">output_data</span><span class="p">,</span><span class="w"> </span><span class="n">seq_lengths</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><span class="linenos">42</span><span class="p">}</span>
|
||
<span class="linenos">43</span>
|
||
<span class="linenos">44</span><span class="kt">void</span><span class="w"> </span><span class="nf">main</span><span class="p">(){</span>
|
||
<span class="linenos">45</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">shape</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="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">};</span>
|
||
<span class="linenos">46</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">seq_lengths</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="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">};</span>
|
||
<span class="linenos">47</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ndim</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">3</span><span class="p">;</span>
|
||
<span class="linenos">48</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">seq_dim</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">49</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">batch_dim</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">50</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="w"> </span><span class="c1">// 测试单核时核掩码设置为0b0001即可</span>
|
||
<span class="linenos">51</span><span class="w"> </span><span class="n">TestReverseSequenceFp32</span><span class="p">(</span><span class="n">shape</span><span class="p">,</span><span class="w"> </span><span class="n">seq_lengths</span><span class="p">,</span><span class="w"> </span><span class="n">seq_dim</span><span class="p">,</span><span class="w"> </span><span class="n">batch_dim</span><span class="p">,</span><span class="w"> </span><span class="n">ndim</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">);</span>
|
||
<span class="linenos">52</span><span class="p">}</span>
|
||
</pre></div>
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