documentation/softmax__layer_8cl_source.xhtml

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 119 <a href="softmax__layer_8cl.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2017 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * deal in the Software without restriction, including without limitation the</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="helpers_8h.xhtml">helpers.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#if defined USE_F16</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#define MINVAL HALF_MIN</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#define SELECT_DATA_TYPE short</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#define DATA_TYPE half</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#a80b22c555ddadb47cc6ca338a9c49126">   31</a></span>&#160;<span class="preprocessor">#define MINVAL FLT_MIN</span></div><div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">   32</a></span>&#160;<span class="preprocessor">#define SELECT_DATA_TYPE int</span></div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">   33</a></span>&#160;<span class="preprocessor">#define DATA_TYPE float</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#a5505428916dfe70b40b32686c57e8436">   36</a></span>&#160;__constant <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16) <a class="code" href="softmax__layer_8cl.xhtml#a5505428916dfe70b40b32686c57e8436">type_min</a> = (<a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16))(<a class="code" href="softmax__layer_8cl.xhtml#a80b22c555ddadb47cc6ca338a9c49126">MINVAL</a>);</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">   37</a></span>&#160;__constant uint16 <a class="code" href="softmax__layer_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a> = (uint16)(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#a67da577562e431fc20c5cd8a1e8ddf21">   59</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="softmax__layer_8cl.xhtml#a67da577562e431fc20c5cd8a1e8ddf21">softmax_layer_max</a>(</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src),</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(dst),</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    uint width)</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;{</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="comment">// Initialize local maximum</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    max_val = (<a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16))<a class="code" href="softmax__layer_8cl.xhtml#a5505428916dfe70b40b32686c57e8436">type_min</a>;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="comment">// Calculate max of row</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keyword">const</span> uint width4 = width &gt;&gt; 4;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">for</span>(uint i = 0; i &lt; width4; i++)</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    {</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        data    = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, i &lt;&lt; 4, 0));</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        max_val = max(data, max_val);</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    }</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="preprocessor">#if defined NON_MULTIPLE_OF_16</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="comment">// Handle non multiple of 16</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    data = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, width4 &lt;&lt; 4, 0));</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">SELECT_DATA_TYPE</a>, 16)</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    widx    = <a class="code" href="helpers_8h.xhtml#aa8d95ba04fc73845abc6045952cae5be">CONVERT</a>(((uint16)(width4 &lt;&lt; 4) + <a class="code" href="softmax__layer_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a>) &lt; width, <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">SELECT_DATA_TYPE</a>, 16));</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    max_val = max(max_val, select(<a class="code" href="softmax__layer_8cl.xhtml#a5505428916dfe70b40b32686c57e8436">type_min</a>, data, widx));</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="comment">// Perform max reduction</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    max_val.s01234567 = max(max_val.s01234567, max_val.s89ABCDEF);</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    max_val.s0123     = max(max_val.s0123, max_val.s4567);</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    max_val.s01       = max(max_val.s01, max_val.s23);</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    max_val.s0        = max(max_val.s0, max_val.s1);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <span class="comment">// Store result</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    *((__global DATA_TYPE *)dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>) = max_val.s0;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;}</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#aaf2858ffa79555d18154eae8a32db43e">  132</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="softmax__layer_8cl.xhtml#aaf2858ffa79555d18154eae8a32db43e">softmax_layer_shift_exp_sum</a>(</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src),</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(max),</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(dst),</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(sum),</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    uint width)</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;{</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> max = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(max);</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> sum = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(sum);</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="comment">// Load max value of 1D logits vector (row)</span></div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> max_val = *((__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;max, 0, 0));</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="comment">// Set sum vector</span></div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    sum1D = 0;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <span class="comment">// Shift values, exp and sum</span></div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    <span class="keyword">const</span> uint width4 = width &gt;&gt; 4;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="keywordflow">for</span>(uint i = 0; i &lt; width4; i++)</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    {</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        data = vload16(0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, i &lt;&lt; 4, 0));</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        data = exp(data - max_val);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;        vstore16(data, 0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, i &lt;&lt; 4, 0));</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        sum1D += data;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    }</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="preprocessor">#if defined NON_MULTIPLE_OF_16</span></div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="comment">// Handle non multiple of 16</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    data = vload16(0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, width4 &lt;&lt; 4, 0));</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    data = exp(data - max_val);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">SELECT_DATA_TYPE</a>, 16)</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    widx = <a class="code" href="helpers_8h.xhtml#aa8d95ba04fc73845abc6045952cae5be">CONVERT</a>(((uint16)(width4 &lt;&lt; 4) + <a class="code" href="softmax__layer_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a>) &lt; width, <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">SELECT_DATA_TYPE</a>, 16));</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    data = select(0, data, widx);</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    vstore16(data, 0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, width4 &lt;&lt; 4, 0));</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    sum1D += data;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <span class="comment">// Perform min/max reduction</span></div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    sum1D.s01234567 = sum1D.s01234567 + sum1D.s89ABCDEF;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    sum1D.s0123     = sum1D.s0123 + sum1D.s4567;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    sum1D.s01       = sum1D.s01 + sum1D.s23;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    sum1D.s0        = sum1D.s0 + sum1D.s1;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    <span class="comment">// Calculate and store result</span></div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    *((__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)sum.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>) = sum1D.s0;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;}</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;</div><div class="line"><a name="l00207"></a><span class="lineno"><a class="line" href="softmax__layer_8cl.xhtml#a317069d3b4107b4b8157c8b09e30745f">  207</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="softmax__layer_8cl.xhtml#a317069d3b4107b4b8157c8b09e30745f">softmax_layer_norm</a>(</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src),</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(sum),</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(dst))</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;{</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> sum = <a class="code" href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(sum);</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    <span class="comment">// Load max value of 1D logits vector (row)</span></div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> sum_val = *((__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;sum, 0, get_global_id(1)));</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    data = vload16(0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 0));</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    vstore16(data / sum_val, 0, (__global <a class="code" href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, 0, 0));</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a4334a4a76f8e9628c0fb9e1acf616e2a"><div class="ttname"><a href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT_NO_STEP(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00076">helpers.h:76</a></div></div>
 120 <div class="ttc" id="helpers_8h_xhtml_a22f42fcf2077d951271df83b55c1a71a"><div class="ttname"><a href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a></div><div class="ttdeci">#define IMAGE_DECLARATION(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00049">helpers.h:49</a></div></div>
 121 <div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
 122 <div class="ttc" id="helpers_8h_xhtml"><div class="ttname"><a href="helpers_8h.xhtml">helpers.h</a></div></div>
 123 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
 124 <div class="ttc" id="helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00032">helpers.h:32</a></div></div>
 125 <div class="ttc" id="softmax__layer_8cl_xhtml_af5b2e33e3c5fcaab3a213f26c2300170"><div class="ttname"><a href="softmax__layer_8cl.xhtml#af5b2e33e3c5fcaab3a213f26c2300170">SELECT_DATA_TYPE</a></div><div class="ttdeci">#define SELECT_DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00032">softmax_layer.cl:32</a></div></div>
 126 <div class="ttc" id="softmax__layer_8cl_xhtml_aaf2858ffa79555d18154eae8a32db43e"><div class="ttname"><a href="softmax__layer_8cl.xhtml#aaf2858ffa79555d18154eae8a32db43e">softmax_layer_shift_exp_sum</a></div><div class="ttdeci">__kernel void softmax_layer_shift_exp_sum(__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *max_ptr, uint max_stride_x, uint max_step_x, uint max_stride_y, uint max_step_y, uint max_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes, __global uchar *sum_ptr, uint sum_stride_x, uint sum_step_x, uint sum_stride_y, uint sum_step_y, uint sum_offset_first_element_in_bytes, uint width)</div><div class="ttdoc">Shifts the values of the input tensor by the max calculated in softmax_layer_max kernel, then gets the exponent of each element as sums all elements across each row. </div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00132">softmax_layer.cl:132</a></div></div>
 127 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
 128 <div class="ttc" id="softmax__layer_8cl_xhtml_a67da577562e431fc20c5cd8a1e8ddf21"><div class="ttname"><a href="softmax__layer_8cl.xhtml#a67da577562e431fc20c5cd8a1e8ddf21">softmax_layer_max</a></div><div class="ttdeci">__kernel void softmax_layer_max(__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes, uint width)</div><div class="ttdoc">Identifies the maximum value across the 1st dimension. </div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00059">softmax_layer.cl:59</a></div></div>
 129 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00097">helpers.h:97</a></div></div>
 130 <div class="ttc" id="softmax__layer_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="softmax__layer_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00033">softmax_layer.cl:33</a></div></div>
 131 <div class="ttc" id="softmax__layer_8cl_xhtml_a5505428916dfe70b40b32686c57e8436"><div class="ttname"><a href="softmax__layer_8cl.xhtml#a5505428916dfe70b40b32686c57e8436">type_min</a></div><div class="ttdeci">__constant float16 type_min</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00036">softmax_layer.cl:36</a></div></div>
 132 <div class="ttc" id="softmax__layer_8cl_xhtml_a0712735973f172ac9efc7d48a31e47ad"><div class="ttname"><a href="softmax__layer_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a></div><div class="ttdeci">__constant uint16 idx16</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00037">softmax_layer.cl:37</a></div></div>
 133 <div class="ttc" id="softmax__layer_8cl_xhtml_a80b22c555ddadb47cc6ca338a9c49126"><div class="ttname"><a href="softmax__layer_8cl.xhtml#a80b22c555ddadb47cc6ca338a9c49126">MINVAL</a></div><div class="ttdeci">#define MINVAL</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00031">softmax_layer.cl:31</a></div></div>
 134 <div class="ttc" id="softmax__layer_8cl_xhtml_a317069d3b4107b4b8157c8b09e30745f"><div class="ttname"><a href="softmax__layer_8cl.xhtml#a317069d3b4107b4b8157c8b09e30745f">softmax_layer_norm</a></div><div class="ttdeci">__kernel void softmax_layer_norm(__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *sum_ptr, uint sum_stride_x, uint sum_step_x, uint sum_stride_y, uint sum_step_y, uint sum_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</div><div class="ttdoc">Divides all the values of the input tensor by the sum calculated from softmax_layer_shift_exp_sum ker...</div><div class="ttdef"><b>Definition:</b> <a href="softmax__layer_8cl_source.xhtml#l00207">softmax_layer.cl:207</a></div></div>
 135 <div class="ttc" id="helpers_8h_xhtml_aa8d95ba04fc73845abc6045952cae5be"><div class="ttname"><a href="helpers_8h.xhtml#aa8d95ba04fc73845abc6045952cae5be">CONVERT</a></div><div class="ttdeci">#define CONVERT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00035">helpers.h:35</a></div></div>
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