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<div class="title">ad_structure.cpp</div> </div>
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<a href="ad__structure_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "../include/datatype_structure.hpp"</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>AD {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#ifdef CODI_REVERSE_TYPE</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"></span> <span class="comment">/*--- Initialization of the global variables ---*/</span></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="keywordtype">int</span> adjointVectorPosition = 0;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  std::vector<su2double::GradientData> inputValues;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  std::vector<su2double::GradientData> localInputValues;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  std::vector<su2double*> localOutputValues;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  su2double::TapeType& globalTape = su2double::getGlobalTape();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  su2double::TapeType::Position StartPosition, EndPosition;</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="keywordtype">bool</span> Status = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">bool</span> PreaccActive = <span class="keyword">false</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>  <span class="keywordtype">void</span> <a class="code" href="namespace_a_d.html#a309d057a92faa60a3a760254678ec9ea">EndPreacc</a>(){</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>  <span class="keywordflow">if</span>(PreaccActive){</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> iVarOut, iVarIn;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> nVarOut, nVarIn;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  su2double::GradientData index_out, index_in;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  nVarOut = localOutputValues.size();</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  nVarIn = localInputValues.size();</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">/*--- Store the current position of the tape ---*/</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  EndPosition = globalTape.getPosition();</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">/*--- Allocate local memory on the stack (does not need to be deleted at the end of the routine!) ---*/</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="datatype__structure_8hpp.html#abb7b40f22e781523236840ff3c747b62">passivedouble</a>* local_jacobi = (<a class="code" href="datatype__structure_8hpp.html#abb7b40f22e781523236840ff3c747b62">passivedouble</a>*)alloca(<span class="keyword">sizeof</span>(<a class="code" href="datatype__structure_8hpp.html#abb7b40f22e781523236840ff3c747b62">passivedouble</a>)*(nVarOut*nVarIn));</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>* nNonzero = (<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>*)alloca(<span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>)*nVarOut);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">/*--- Compute the local Jacobi matrix of the code between the start and end position</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * using the inputs and outputs declared with StartPreacc(...)/EndPreacc(...) ---*/</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">for</span> (iVarOut = 0; iVarOut < nVarOut; iVarOut++){</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  nNonzero[iVarOut] = 0;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  index_out = localOutputValues[iVarOut]->getGradientData();</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  globalTape.setGradient(index_out, 1.0);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  globalTape.evaluate(EndPosition, StartPosition);</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>  <span class="keywordflow">for</span> (iVarIn= 0; iVarIn < nVarIn; iVarIn++){</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  index_in = localInputValues[iVarIn];</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  local_jacobi[iVarOut*nVarIn+iVarIn] = globalTape.getGradient(index_in);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (local_jacobi[iVarOut*nVarIn+iVarIn] != 0.0){</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  nNonzero[iVarOut]++;</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>  globalTape.setGradient(index_in, 0.0);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  globalTape.setGradient(index_out, 0.0);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  globalTape.clearAdjoints(EndPosition, StartPosition);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">/*--- Reset the tape to the starting position (to reuse the part of the tape) ---*/</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (nVarOut > 0){</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  globalTape.reset(StartPosition);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/*--- For each output create a statement on the tape and push the corresponding Jacobi entries.</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * Note that the output variables need a new index since we did a reset of the tape section. ---*/</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">for</span> (iVarOut = 0; iVarOut < nVarOut; iVarOut++){</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  index_out = su2double::GradientData();</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (nNonzero[iVarOut] != 0){</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  globalTape.store(index_out, nNonzero[iVarOut]);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">for</span> (iVarIn = 0; iVarIn < nVarIn; iVarIn++){</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  index_in = localInputValues[iVarIn];</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  globalTape.pushJacobi(local_jacobi[iVarOut*nVarIn+iVarIn],</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  local_jacobi[iVarOut*nVarIn+iVarIn], local_jacobi[iVarOut*nVarIn+iVarIn], index_in);</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>  }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  localOutputValues[iVarOut]->getGradientData() = index_out;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</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>  <span class="comment">/* --- Clear local vectors and reset indicator ---*/</span></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>  localInputValues.clear();</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  localOutputValues.clear();</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>  PreaccActive = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"></span>}</div>
<div class="ttc" id="datatype__structure_8hpp_html_abb7b40f22e781523236840ff3c747b62"><div class="ttname"><a href="datatype__structure_8hpp.html#abb7b40f22e781523236840ff3c747b62">passivedouble</a></div><div class="ttdeci">double passivedouble</div><div class="ttdef"><b>Definition:</b> <a href="datatype__structure_8hpp_source.html#l00060">datatype_structure.hpp:60</a></div></div>
<div class="ttc" id="namespace_a_d_html_a309d057a92faa60a3a760254678ec9ea"><div class="ttname"><a href="namespace_a_d.html#a309d057a92faa60a3a760254678ec9ea">AD::EndPreacc</a></div><div class="ttdeci">void EndPreacc()</div><div class="ttdoc">Ends a preaccumulation section and computes the local Jacobi matrix of a code section using the varia...</div><div class="ttdef"><b>Definition:</b> <a href="ad__structure_8inl_source.html#l00161">ad_structure.inl:161</a></div></div>
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