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 101 <a href="_optimizer_8cpp.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 © 2017 Arm Ltd. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_optimizer_8hpp.xhtml">Optimizer.hpp</a>&quot;</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_observable_8hpp.xhtml">Observable.hpp</a>&quot;</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_all_8hpp.xhtml">optimizations/All.hpp</a>&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;{</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;Optimizer::Optimizer()</div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;{</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;}</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"><a class="line" href="classarmnn_1_1_optimizer.xhtml#a1f48ba622b76ea04d15c9b62f642bf08">   16</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1_optimizer.xhtml#a1f48ba622b76ea04d15c9b62f642bf08">Optimizer::Pass</a>(<a class="code" href="classarmnn_1_1_graph.xhtml">Graph</a>&amp; graph, <span class="keyword">const</span> <a class="code" href="classarmnn_1_1_optimizer.xhtml#ad1794808004025d6e06c176507197b24">Optimizations</a>&amp; optimizations)</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;{</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;    <span class="comment">// Create observables to observe changes to the graph</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    <a class="code" href="classarmnn_1_1_added_layer_observable.xhtml">AddedLayerObservable</a> addedLayerObservable(graph);</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;    <a class="code" href="classarmnn_1_1_erased_layer_names_observable.xhtml">ErasedLayerNamesObservable</a> erasedLayerNamesObservable(graph);</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    <span class="keywordtype">bool</span> graphNeedsSorting = <span class="keyword">false</span>;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    <span class="keyword">auto</span> it = graph.<a class="code" href="classarmnn_1_1_graph.xhtml#a9a7209345edfdb2b066b0ceb66414d7c">TopologicalSort</a>().<a class="code" href="classarmnn_1_1_graph.xhtml#ab45dae688fc5d8983727abffa4389003">end</a>();</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    <span class="comment">// Calls TopologicalSort() for every iteration to re-order the list in case layers were added/removed.</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    <span class="keywordflow">while</span> (it != graph.<a class="code" href="classarmnn_1_1_graph.xhtml#a9a7209345edfdb2b066b0ceb66414d7c">TopologicalSort</a>().<a class="code" href="classarmnn_1_1_graph.xhtml#a2387033802383edbdc95f9bbb12a707e">begin</a>())</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    {</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        --it;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp;&amp; optimization : optimizations)</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        {</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;            BOOST_ASSERT(*it);</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;            optimization-&gt;Run(graph, **it);</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;            <span class="keywordflow">if</span> ((*it)-&gt;IsOutputUnconnected())</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">   36</span>&#160;                <span class="keyword">auto</span> next = std::next(graph.<a class="code" href="classarmnn_1_1_graph.xhtml#ac7ed5efddd83499ff642cc65f3f66a14">GetPosInGraph</a>(**it));</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;                graph.<a class="code" href="classarmnn_1_1_graph.xhtml#a96d76fd10af39fbfabfd0caf0d1439fa">EraseLayer</a>(it);</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;                it = next;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;                graphNeedsSorting = <span class="keyword">true</span>;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            }</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;            <span class="comment">// Add the names of erased layers as related layers to the new added layers</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;            <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; erasedLayerName : erasedLayerNamesObservable)</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;            {</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;                <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; addedLayer : addedLayerObservable)</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;                {</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                    addedLayer-&gt;AddRelatedLayerName(erasedLayerName);</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;                }</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            }</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;            erasedLayerNamesObservable.Clear();</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;            addedLayerObservable.<a class="code" href="classarmnn_1_1_graph_observable.xhtml#aa71d36872f416feaa853788a7a7a7ef8">Clear</a>();</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            <span class="keywordflow">if</span> (graphNeedsSorting)</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;            {</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;                graphNeedsSorting = <span class="keyword">false</span>;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                <span class="keywordflow">break</span>;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            }</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        }</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    }</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;}</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;} <span class="comment">// namespace armnn</span></div><div class="ttc" id="classarmnn_1_1_graph_xhtml_a2387033802383edbdc95f9bbb12a707e"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml#a2387033802383edbdc95f9bbb12a707e">armnn::Graph::begin</a></div><div class="ttdeci">Iterator begin()</div><div class="ttdoc">Returns iterator pointing to the beginning of the list. Lowercase for range-based for loops...</div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00158">Graph.hpp:158</a></div></div>
 102 <div class="ttc" id="classarmnn_1_1_graph_xhtml_a96d76fd10af39fbfabfd0caf0d1439fa"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml#a96d76fd10af39fbfabfd0caf0d1439fa">armnn::Graph::EraseLayer</a></div><div class="ttdeci">void EraseLayer(Iterator pos)</div><div class="ttdoc">Deletes the layer at the specified position. </div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00442">Graph.hpp:442</a></div></div>
 103 <div class="ttc" id="classarmnn_1_1_optimizer_xhtml_a1f48ba622b76ea04d15c9b62f642bf08"><div class="ttname"><a href="classarmnn_1_1_optimizer.xhtml#a1f48ba622b76ea04d15c9b62f642bf08">armnn::Optimizer::Pass</a></div><div class="ttdeci">static void Pass(Graph &amp;graph, const Optimizations &amp;optimizations)</div><div class="ttdef"><b>Definition:</b> <a href="_optimizer_8cpp_source.xhtml#l00016">Optimizer.cpp:16</a></div></div>
 104 <div class="ttc" id="classarmnn_1_1_optimizer_xhtml_ad1794808004025d6e06c176507197b24"><div class="ttname"><a href="classarmnn_1_1_optimizer.xhtml#ad1794808004025d6e06c176507197b24">armnn::Optimizer::Optimizations</a></div><div class="ttdeci">std::vector&lt; OptimizationPtr &gt; Optimizations</div><div class="ttdef"><b>Definition:</b> <a href="_optimizer_8hpp_source.xhtml#l00018">Optimizer.hpp:18</a></div></div>
 105 <div class="ttc" id="classarmnn_1_1_added_layer_observable_xhtml"><div class="ttname"><a href="classarmnn_1_1_added_layer_observable.xhtml">armnn::AddedLayerObservable</a></div><div class="ttdef"><b>Definition:</b> <a href="_observable_8hpp_source.xhtml#l00046">Observable.hpp:46</a></div></div>
 106 <div class="ttc" id="namespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2020 ARM Limited. </div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00025">00_introduction.dox:25</a></div></div>
 107 <div class="ttc" id="_observable_8hpp_xhtml"><div class="ttname"><a href="_observable_8hpp.xhtml">Observable.hpp</a></div></div>
 108 <div class="ttc" id="_optimizer_8hpp_xhtml"><div class="ttname"><a href="_optimizer_8hpp.xhtml">Optimizer.hpp</a></div></div>
 109 <div class="ttc" id="classarmnn_1_1_graph_xhtml_ac7ed5efddd83499ff642cc65f3f66a14"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml#ac7ed5efddd83499ff642cc65f3f66a14">armnn::Graph::GetPosInGraph</a></div><div class="ttdeci">Iterator GetPosInGraph(Layer &amp;layer)</div><div class="ttdoc">Gets the position of a layer in the graph. </div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00389">Graph.hpp:389</a></div></div>
 110 <div class="ttc" id="classarmnn_1_1_graph_observable_xhtml_aa71d36872f416feaa853788a7a7a7ef8"><div class="ttname"><a href="classarmnn_1_1_graph_observable.xhtml#aa71d36872f416feaa853788a7a7a7ef8">armnn::GraphObservable::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdef"><b>Definition:</b> <a href="_observable_8hpp_source.xhtml#l00026">Observable.hpp:26</a></div></div>
 111 <div class="ttc" id="_all_8hpp_xhtml"><div class="ttname"><a href="_all_8hpp.xhtml">All.hpp</a></div></div>
 112 <div class="ttc" id="classarmnn_1_1_graph_xhtml"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml">armnn::Graph</a></div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00029">Graph.hpp:29</a></div></div>
 113 <div class="ttc" id="classarmnn_1_1_graph_xhtml_ab45dae688fc5d8983727abffa4389003"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml#ab45dae688fc5d8983727abffa4389003">armnn::Graph::end</a></div><div class="ttdeci">Iterator end()</div><div class="ttdoc">Returns iterator pointing to the end of the list. Lowercase for range-based for loops. </div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00160">Graph.hpp:160</a></div></div>
 114 <div class="ttc" id="classarmnn_1_1_graph_xhtml_a9a7209345edfdb2b066b0ceb66414d7c"><div class="ttname"><a href="classarmnn_1_1_graph.xhtml#a9a7209345edfdb2b066b0ceb66414d7c">armnn::Graph::TopologicalSort</a></div><div class="ttdeci">Graph &amp; TopologicalSort()</div><div class="ttdoc">Sorts layers in topological order and return this. </div><div class="ttdef"><b>Definition:</b> <a href="_graph_8hpp_source.xhtml#l00173">Graph.hpp:173</a></div></div>
 115 <div class="ttc" id="classarmnn_1_1_erased_layer_names_observable_xhtml"><div class="ttname"><a href="classarmnn_1_1_erased_layer_names_observable.xhtml">armnn::ErasedLayerNamesObservable</a></div><div class="ttdef"><b>Definition:</b> <a href="_observable_8hpp_source.xhtml#l00056">Observable.hpp:56</a></div></div>
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