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<div class="title">Threadpool.cpp</div> </div>
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<a href="_threadpool_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> <span class="comment">//</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// SPDX-License-Identifier: MIT</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#if !defined(ARMNN_DISABLE_THREADS)</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  </div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <<a class="code" href="_threadpool_8hpp.xhtml">armnn/Threadpool.hpp</a>></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  </div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <<a class="code" href="_timer_8hpp.xhtml">armnn/utility/Timer.hpp</a>></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> {</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span>experimental</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> {</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
<div class="line"><a name="l00016"></a><span class="lineno"><a class="line" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a22944b5254612236c06e24865262e1d5"> 16</a></span> <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a22944b5254612236c06e24865262e1d5">Threadpool::Threadpool</a>(std::size_t numThreads,</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <a class="code" href="classarmnn_1_1_i_runtime.xhtml">IRuntime</a>* runtimePtr,</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  std::vector<std::shared_ptr<IWorkingMemHandle>> memHandles)</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  : m_RuntimePtr(runtimePtr)</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> {</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> i = 0u; i < numThreads; ++i)</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  {</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  m_Threads.emplace_back(std::make_unique<std::thread>(&Threadpool::ProcessExecPriorities, <span class="keyword">this</span>, i));</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  }</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ac54bebf6abec4a11e033d703f6441df8">LoadMemHandles</a>(memHandles);</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> }</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ac54bebf6abec4a11e033d703f6441df8"> 29</a></span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ac54bebf6abec4a11e033d703f6441df8">Threadpool::LoadMemHandles</a>(std::vector<std::shared_ptr<IWorkingMemHandle>> memHandles)</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">if</span> (memHandles.size() == 0)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a>(<span class="stringliteral">"Threadpool::UnloadMemHandles: Size of memHandles vector must be greater than 0"</span>);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">if</span> (memHandles.size() != m_Threads.size())</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a>(</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="stringliteral">"Threadpool::UnloadMemHandles: Size of memHandles vector must match the number of threads"</span>);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="namespacearmnn.xhtml#a0d8160388a127c1a23b37bc88dc6e2ec">NetworkId</a> networkId = memHandles[0]->GetNetworkId();</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">for</span> (uint32_t i = 1; i < memHandles.size(); ++i)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (networkId != memHandles[i]->GetNetworkId())</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a>(</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="stringliteral">"Threadpool::UnloadMemHandles: All network ids must be identical in memHandles"</span>);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  std::pair<NetworkId, std::vector<std::shared_ptr<IWorkingMemHandle>>> pair {networkId, memHandles};</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  m_WorkingMemHandleMap.insert(pair);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a11f8027065067f9f77f54fe2400479d2"> 57</a></span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a11f8027065067f9f77f54fe2400479d2">Threadpool::UnloadMemHandles</a>(<a class="code" href="namespacearmnn.xhtml#a0d8160388a127c1a23b37bc88dc6e2ec">NetworkId</a> networkId)</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">if</span> (m_WorkingMemHandleMap.find(networkId) != m_WorkingMemHandleMap.end())</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  m_WorkingMemHandleMap.erase(networkId);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a>(<span class="stringliteral">"Threadpool::UnloadMemHandles: Unknown NetworkId"</span>);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ab38a8efb11e2dfeeb5a3709644985748"> 69</a></span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ab38a8efb11e2dfeeb5a3709644985748">Threadpool::Schedule</a>(<a class="code" href="namespacearmnn.xhtml#a0d8160388a127c1a23b37bc88dc6e2ec">NetworkId</a> networkId,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> <a class="code" href="namespacearmnn.xhtml#aa01bce88f89975a5a031db4cc8861527">InputTensors</a>& inputTensors,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">const</span> <a class="code" href="namespacearmnn.xhtml#a8f091a512915d1cb29a4ebf13dfc53ea">OutputTensors</a>& outputTensors,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> <a class="code" href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488">QosExecPriority</a> priority,</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  std::shared_ptr<IAsyncExecutionCallback> cb)</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> {</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (m_WorkingMemHandleMap.find(networkId) == m_WorkingMemHandleMap.end())</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a>(<span class="stringliteral">"Threadpool::UnloadMemHandles: Unknown NetworkId"</span>);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// Group execution parameters so that they can be easily added to the queue</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  ExecutionTuple groupExecParams = std::make_tuple(networkId, inputTensors, outputTensors, cb);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  std::shared_ptr<ExecutionTuple> operation = std::make_shared<ExecutionTuple>(groupExecParams);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">// Add a message to the queue and notify the request thread</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::unique_lock<std::mutex> lock(m_ThreadPoolMutex);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">switch</span> (priority)</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">case</span> <a class="code" href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a655d20c1ca69519ca647684edbb2db35">QosExecPriority::High</a>:</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  m_HighPriorityQueue.push(operation);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">case</span> <a class="code" href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a28d0edd045e05cf5af64e35ae0c4c6ef">QosExecPriority::Low</a>:</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  m_LowPriorityQueue.push(operation);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">case</span> <a class="code" href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a87f8a6ab85c9ced3702b4ea641ad4bb5">QosExecPriority::Medium</a>:</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  m_MediumPriorityQueue.push(operation);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  m_ThreadPoolEvent.notify_one();</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a3be6ab6132ee76b0b36149f70f842f61"> 102</a></span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a3be6ab6132ee76b0b36149f70f842f61">Threadpool::TerminateThreadPool</a>() noexcept</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  std::unique_lock<std::mutex> threadPoolLock(m_ThreadPoolMutex);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  m_TerminatePool = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  m_ThreadPoolEvent.notify_all();</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> &thread : m_Threads)</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  thread->join();</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keywordtype">void</span> Threadpool::ProcessExecPriorities(uint32_t index)</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">int</span> expireRate = <a class="code" href="namespacearmnn.xhtml#a61d2390e44601830cdc9b400b9910bbf">EXPIRE_RATE</a>;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> highPriorityCount = 0;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> mediumPriorityCount = 0;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  std::shared_ptr<ExecutionTuple> currentExecInProgress(<span class="keyword">nullptr</span>);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Wait for a message to be added to the queue</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// This is in a separate scope to minimise the lifetime of the lock</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  std::unique_lock<std::mutex> lock(m_ThreadPoolMutex);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  m_ThreadPoolEvent.wait(lock,</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  [=]</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> m_TerminatePool || !m_HighPriorityQueue.empty() ||</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  !m_MediumPriorityQueue.empty() || !m_LowPriorityQueue.empty();</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  });</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (m_TerminatePool && m_HighPriorityQueue.empty() && m_MediumPriorityQueue.empty() &&</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  m_LowPriorityQueue.empty())</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// Get the message to process from the front of each queue based on priority from high to low</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Get high priority first if it does not exceed the expire rate</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (!m_HighPriorityQueue.empty() && highPriorityCount < expireRate)</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  currentExecInProgress = m_HighPriorityQueue.front();</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  m_HighPriorityQueue.pop();</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  highPriorityCount += 1;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// If high priority queue is empty or the count exceeds the expire rate, get medium priority message</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!m_MediumPriorityQueue.empty() && mediumPriorityCount < expireRate)</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  {</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  currentExecInProgress = m_MediumPriorityQueue.front();</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  m_MediumPriorityQueue.pop();</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  mediumPriorityCount += 1;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// Reset high priority count</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  highPriorityCount = 0;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// If medium priority queue is empty or the count exceeds the expire rate, get low priority message</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!m_LowPriorityQueue.empty())</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  currentExecInProgress = m_LowPriorityQueue.front();</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  m_LowPriorityQueue.pop();</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// Reset high and medium priority count</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  highPriorityCount = 0;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  mediumPriorityCount = 0;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// Reset high and medium priority count</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  highPriorityCount = 0;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  mediumPriorityCount = 0;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// invoke the asynchronous execution method</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">auto</span> networkId = std::get<0>(*currentExecInProgress);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">auto</span> inputTensors = std::get<1>(*currentExecInProgress);</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">auto</span> outputTensors = std::get<2>(*currentExecInProgress);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">auto</span> cb = std::get<3>(*currentExecInProgress);</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// Get time at start of inference</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="namespacearmnn.xhtml#a4b3cb628c15e1eea1b09ec848e9ae8c4">HighResolutionClock</a> startTime = <a class="code" href="namespacearmnn.xhtml#ac895f6f6897ce335b7b433201bae0b48">armnn::GetTimeNow</a>();</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">try</span> <span class="comment">// executing the inference</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  {</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  IWorkingMemHandle& memHandle = *(m_WorkingMemHandleMap.at(networkId))[index];</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// Execute and populate the time at end of inference in the callback</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  m_RuntimePtr-><a class="code" href="classarmnn_1_1_i_runtime.xhtml#a27f91ba619c3c6fd5e640df91b3fd080">Execute</a>(memHandle, inputTensors, outputTensors) == <a class="code" href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70ba505a83f220c02df2f85c3810cd9ceb38">Status::Success</a> ?</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  cb->Notify(<a class="code" href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70ba505a83f220c02df2f85c3810cd9ceb38">Status::Success</a>, std::make_pair(startTime, <a class="code" href="namespacearmnn.xhtml#ac895f6f6897ce335b7b433201bae0b48">armnn::GetTimeNow</a>())) :</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  cb->Notify(<a class="code" href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70bae139a585510a502bbf1841cf589f5086">Status::Failure</a>, std::make_pair(startTime, <a class="code" href="namespacearmnn.xhtml#ac895f6f6897ce335b7b433201bae0b48">armnn::GetTimeNow</a>()));</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">catch</span> (<span class="keyword">const</span> RuntimeException&)</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  {</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  cb->Notify(<a class="code" href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70bae139a585510a502bbf1841cf589f5086">Status::Failure</a>, std::make_pair(startTime, <a class="code" href="namespacearmnn.xhtml#ac895f6f6897ce335b7b433201bae0b48">armnn::GetTimeNow</a>()));</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> } <span class="comment">// namespace experimental</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> } <span class="comment">// namespace armnn</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#endif</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="anamespacearmnn_xhtml_a4b3cb628c15e1eea1b09ec848e9ae8c4"><div class="ttname"><a href="namespacearmnn.xhtml#a4b3cb628c15e1eea1b09ec848e9ae8c4">armnn::HighResolutionClock</a></div><div class="ttdeci">std::chrono::high_resolution_clock::time_point HighResolutionClock</div><div class="ttdoc">Define a timer and associated inference ID for recording execution times.</div><div class="ttdef"><b>Definition:</b> <a href="_types_8hpp_source.xhtml#l00393">Types.hpp:393</a></div></div>
<div class="ttc" id="aclassarmnn_1_1experimental_1_1_threadpool_xhtml_a22944b5254612236c06e24865262e1d5"><div class="ttname"><a href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a22944b5254612236c06e24865262e1d5">armnn::experimental::Threadpool::Threadpool</a></div><div class="ttdeci">Threadpool(std::size_t numThreads, IRuntime *runtimePtr, std::vector< std::shared_ptr< IWorkingMemHandle >> memHandles)</div><div class="ttdef"><b>Definition:</b> <a href="_threadpool_8cpp_source.xhtml#l00016">Threadpool.cpp:16</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a61d2390e44601830cdc9b400b9910bbf"><div class="ttname"><a href="namespacearmnn.xhtml#a61d2390e44601830cdc9b400b9910bbf">armnn::EXPIRE_RATE</a></div><div class="ttdeci">constexpr unsigned int EXPIRE_RATE</div><div class="ttdoc">Variable to control expire rate of priority queue.</div><div class="ttdef"><b>Definition:</b> <a href="_types_8hpp_source.xhtml#l00037">Types.hpp:37</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a8e72227ebe5ac505cf44790f2e6eb488a655d20c1ca69519ca647684edbb2db35"><div class="ttname"><a href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a655d20c1ca69519ca647684edbb2db35">armnn::QosExecPriority::High</a></div><div class="ttdeci">@ High</div></div>
<div class="ttc" id="a_timer_8hpp_xhtml"><div class="ttname"><a href="_timer_8hpp.xhtml">Timer.hpp</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a8e72227ebe5ac505cf44790f2e6eb488a87f8a6ab85c9ced3702b4ea641ad4bb5"><div class="ttname"><a href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a87f8a6ab85c9ced3702b4ea641ad4bb5">armnn::QosExecPriority::Medium</a></div><div class="ttdeci">@ Medium</div></div>
<div class="ttc" id="aclassarmnn_1_1experimental_1_1_threadpool_xhtml_a11f8027065067f9f77f54fe2400479d2"><div class="ttname"><a href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a11f8027065067f9f77f54fe2400479d2">armnn::experimental::Threadpool::UnloadMemHandles</a></div><div class="ttdeci">void UnloadMemHandles(NetworkId networkId)</div><div class="ttdef"><b>Definition:</b> <a href="_threadpool_8cpp_source.xhtml#l00057">Threadpool.cpp:57</a></div></div>
<div class="ttc" id="aclassarmnn_1_1experimental_1_1_threadpool_xhtml_ab38a8efb11e2dfeeb5a3709644985748"><div class="ttname"><a href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ab38a8efb11e2dfeeb5a3709644985748">armnn::experimental::Threadpool::Schedule</a></div><div class="ttdeci">void Schedule(NetworkId networkId, const InputTensors &inputTensors, const OutputTensors &outputTensors, const QosExecPriority priority, std::shared_ptr< IAsyncExecutionCallback > cb)</div><div class="ttdoc">Schedule an asynchronous execution on the loaded network.</div><div class="ttdef"><b>Definition:</b> <a href="_threadpool_8cpp_source.xhtml#l00069">Threadpool.cpp:69</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2021 ARM Limited and Contributors.</div><div class="ttdef"><b>Definition:</b> <a href="01__00__quick__start_8dox_source.xhtml#l00006">01_00_quick_start.dox:6</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a8e72227ebe5ac505cf44790f2e6eb488a28d0edd045e05cf5af64e35ae0c4c6ef"><div class="ttname"><a href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488a28d0edd045e05cf5af64e35ae0c4c6ef">armnn::QosExecPriority::Low</a></div><div class="ttdeci">@ Low</div></div>
<div class="ttc" id="aclassarmnn_1_1_runtime_exception_xhtml"><div class="ttname"><a href="classarmnn_1_1_runtime_exception.xhtml">armnn::RuntimeException</a></div><div class="ttdef"><b>Definition:</b> <a href="_exceptions_8hpp_source.xhtml#l00120">Exceptions.hpp:120</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_ac895f6f6897ce335b7b433201bae0b48"><div class="ttname"><a href="namespacearmnn.xhtml#ac895f6f6897ce335b7b433201bae0b48">armnn::GetTimeNow</a></div><div class="ttdeci">std::chrono::high_resolution_clock::time_point GetTimeNow()</div><div class="ttdef"><b>Definition:</b> <a href="_timer_8hpp_source.xhtml#l00014">Timer.hpp:14</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_aa01bce88f89975a5a031db4cc8861527"><div class="ttname"><a href="namespacearmnn.xhtml#aa01bce88f89975a5a031db4cc8861527">armnn::InputTensors</a></div><div class="ttdeci">std::vector< std::pair< LayerBindingId, class ConstTensor > > InputTensors</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00392">Tensor.hpp:392</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a67a0db04d321a74b7e7fcfd3f1a3f70bae139a585510a502bbf1841cf589f5086"><div class="ttname"><a href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70bae139a585510a502bbf1841cf589f5086">armnn::Status::Failure</a></div><div class="ttdeci">@ Failure</div></div>
<div class="ttc" id="aclassarmnn_1_1experimental_1_1_threadpool_xhtml_ac54bebf6abec4a11e033d703f6441df8"><div class="ttname"><a href="classarmnn_1_1experimental_1_1_threadpool.xhtml#ac54bebf6abec4a11e033d703f6441df8">armnn::experimental::Threadpool::LoadMemHandles</a></div><div class="ttdeci">void LoadMemHandles(std::vector< std::shared_ptr< IWorkingMemHandle >> memHandles)</div><div class="ttdef"><b>Definition:</b> <a href="_threadpool_8cpp_source.xhtml#l00029">Threadpool.cpp:29</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a0d8160388a127c1a23b37bc88dc6e2ec"><div class="ttname"><a href="namespacearmnn.xhtml#a0d8160388a127c1a23b37bc88dc6e2ec">armnn::NetworkId</a></div><div class="ttdeci">int NetworkId</div><div class="ttdef"><b>Definition:</b> <a href="_i_runtime_8hpp_source.xhtml#l00035">IRuntime.hpp:35</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a67a0db04d321a74b7e7fcfd3f1a3f70ba505a83f220c02df2f85c3810cd9ceb38"><div class="ttname"><a href="namespacearmnn.xhtml#a67a0db04d321a74b7e7fcfd3f1a3f70ba505a83f220c02df2f85c3810cd9ceb38">armnn::Status::Success</a></div><div class="ttdeci">@ Success</div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a8e72227ebe5ac505cf44790f2e6eb488"><div class="ttname"><a href="namespacearmnn.xhtml#a8e72227ebe5ac505cf44790f2e6eb488">armnn::QosExecPriority</a></div><div class="ttdeci">QosExecPriority</div><div class="ttdef"><b>Definition:</b> <a href="_types_8hpp_source.xhtml#l00079">Types.hpp:79</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_i_runtime_xhtml"><div class="ttname"><a href="classarmnn_1_1_i_runtime.xhtml">armnn::IRuntime</a></div><div class="ttdef"><b>Definition:</b> <a href="_i_runtime_8hpp_source.xhtml#l00082">IRuntime.hpp:82</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a8f091a512915d1cb29a4ebf13dfc53ea"><div class="ttname"><a href="namespacearmnn.xhtml#a8f091a512915d1cb29a4ebf13dfc53ea">armnn::OutputTensors</a></div><div class="ttdeci">std::vector< std::pair< LayerBindingId, class Tensor > > OutputTensors</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00393">Tensor.hpp:393</a></div></div>
<div class="ttc" id="aclassarmnn_1_1experimental_1_1_threadpool_xhtml_a3be6ab6132ee76b0b36149f70f842f61"><div class="ttname"><a href="classarmnn_1_1experimental_1_1_threadpool.xhtml#a3be6ab6132ee76b0b36149f70f842f61">armnn::experimental::Threadpool::TerminateThreadPool</a></div><div class="ttdeci">void TerminateThreadPool() noexcept</div><div class="ttdef"><b>Definition:</b> <a href="_threadpool_8cpp_source.xhtml#l00102">Threadpool.cpp:102</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_i_runtime_xhtml_a27f91ba619c3c6fd5e640df91b3fd080"><div class="ttname"><a href="classarmnn_1_1_i_runtime.xhtml#a27f91ba619c3c6fd5e640df91b3fd080">armnn::IRuntime::Execute</a></div><div class="ttdeci">Status Execute(IWorkingMemHandle &workingMemHandle, const InputTensors &inputTensors, const OutputTensors &outputTensors, std::vector< ImportedInputId > preImportedInputs={}, std::vector< ImportedOutputId > preImportedOutputs={})</div><div class="ttdoc">This is an experimental function.</div><div class="ttdef"><b>Definition:</b> <a href="_runtime_8cpp_source.xhtml#l00123">Runtime.cpp:123</a></div></div>
<div class="ttc" id="a_threadpool_8hpp_xhtml"><div class="ttname"><a href="_threadpool_8hpp.xhtml">Threadpool.hpp</a></div></div>
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