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If a copy of the MPL was not distributed</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</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="preprocessor">#ifndef EIGEN_SPARSELU_SUPERNODAL_MATRIX_H</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span><span class="preprocessor">#define EIGEN_SPARSELU_SUPERNODAL_MATRIX_H</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>Eigen {</div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>internal {</div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">/* TODO</span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * InnerIterator as for sparsematrix </span></div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * SuperInnerIterator to iterate through all supernodes </span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * Function for triangular solve</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> */</span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">template</span> <<span class="keyword">typename</span> _Scalar, <span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>MappedSuperNodalMatrix</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>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">typedef</span> _Scalar Scalar; </div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">typedef</span> _Index Index;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">typedef</span> Matrix<Index,Dynamic,1> IndexVector; </div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">typedef</span> Matrix<Scalar,Dynamic,1> ScalarVector;</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  MappedSuperNodalMatrix()</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</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>  }</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  MappedSuperNodalMatrix(Index m, Index n, ScalarVector& nzval, IndexVector& nzval_colptr, IndexVector& rowind, </div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  IndexVector& rowind_colptr, IndexVector& col_to_sup, IndexVector& sup_to_col )</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  {</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  setInfos(m, n, nzval, nzval_colptr, rowind, rowind_colptr, col_to_sup, sup_to_col);</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>  ~MappedSuperNodalMatrix()</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</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>  }</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">void</span> setInfos(Index m, Index n, ScalarVector& nzval, IndexVector& nzval_colptr, IndexVector& rowind, </div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  IndexVector& rowind_colptr, IndexVector& col_to_sup, IndexVector& sup_to_col )</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>  m_row = m;</div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  m_col = n; </div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  m_nzval = nzval.data(); </div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  m_nzval_colptr = nzval_colptr.data(); </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  m_rowind = rowind.data(); </div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  m_rowind_colptr = rowind_colptr.data(); </div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  m_nsuper = col_to_sup(n); </div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  m_col_to_sup = col_to_sup.data(); </div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  m_sup_to_col = sup_to_col.data(); </div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  Index rows() { <span class="keywordflow">return</span> m_row; }</div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  Index cols() { <span class="keywordflow">return</span> m_col; }</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  Scalar* valuePtr() { <span class="keywordflow">return</span> m_nzval; }</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">const</span> Scalar* valuePtr()<span class="keyword"> const </span></div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> m_nzval; </div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  Index* colIndexPtr()</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>  <span class="keywordflow">return</span> m_nzval_colptr; </div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</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>  <span class="keyword">const</span> Index* colIndexPtr()<span class="keyword"> const</span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> m_nzval_colptr; </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="l00112"></a><span class="lineno"> 112</span>  Index* rowIndex() { <span class="keywordflow">return</span> m_rowind; }</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> Index* rowIndex()<span class="keyword"> const</span></div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> m_rowind; </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  Index* rowIndexPtr() { <span class="keywordflow">return</span> m_rowind_colptr; }</div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">const</span> Index* rowIndexPtr()<span class="keyword"> const </span></div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> m_rowind_colptr; </div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  </div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  Index* colToSup() { <span class="keywordflow">return</span> m_col_to_sup; }</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="keyword">const</span> Index* colToSup()<span class="keyword"> const</span></div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> m_col_to_sup; </div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  Index* supToCol() { <span class="keywordflow">return</span> m_sup_to_col; }</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>  <span class="keyword">const</span> Index* supToCol()<span class="keyword"> const </span></div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> m_sup_to_col;</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  Index nsuper()<span class="keyword"> const </span></div> <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> m_nsuper; </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>  </div> <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">class </span>InnerIterator; </div> <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Dest></div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">void</span> solveInPlace( MatrixBase<Dest>&X) <span class="keyword">const</span>;</div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  </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>  </div> <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  Index m_row; <span class="comment">// Number of rows</span></div> <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  Index m_col; <span class="comment">// Number of columns </span></div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  Index m_nsuper; <span class="comment">// Number of supernodes </span></div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  Scalar* m_nzval; <span class="comment">//array of nonzero values packed by column</span></div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  Index* m_nzval_colptr; <span class="comment">//nzval_colptr[j] Stores the location in nzval[] which starts column j </span></div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  Index* m_rowind; <span class="comment">// Array of compressed row indices of rectangular supernodes</span></div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  Index* m_rowind_colptr; <span class="comment">//rowind_colptr[j] stores the location in rowind[] which starts column j</span></div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  Index* m_col_to_sup; <span class="comment">// col_to_sup[j] is the supernode number to which column j belongs</span></div> <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  Index* m_sup_to_col; <span class="comment">//sup_to_col[s] points to the starting column of the s-th supernode</span></div> <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div> <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">private</span> :</div> <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> };</div> <div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div> <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="keyword">template</span><<span class="keyword">typename</span> Scalar, <span class="keyword">typename</span> Index></div> <div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">class </span>MappedSuperNodalMatrix<Scalar,Index>::InnerIterator</div> <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> {</div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  InnerIterator(<span class="keyword">const</span> MappedSuperNodalMatrix& mat, Index outer)</div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  : m_matrix(mat),</div> <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  m_outer(outer), </div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  m_supno(mat.colToSup()[outer]),</div> <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  m_idval(mat.colIndexPtr()[outer]),</div> <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  m_startidval(m_idval),</div> <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  m_endidval(mat.colIndexPtr()[outer+1]),</div> <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  m_idrow(mat.rowIndexPtr()[outer]),</div> <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  m_endidrow(mat.rowIndexPtr()[outer+1])</div> <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {}</div> <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keyword">inline</span> InnerIterator& operator++()</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>  m_idval++; </div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  m_idrow++;</div> <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</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>  <span class="keyword">inline</span> Scalar value()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_matrix.valuePtr()[m_idval]; }</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>  <span class="keyword">inline</span> Scalar& valueRef() { <span class="keywordflow">return</span> <span class="keyword">const_cast<</span>Scalar&<span class="keyword">></span>(m_matrix.valuePtr()[m_idval]); }</div> <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  </div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">inline</span> Index index()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_matrix.rowIndex()[m_idrow]; }</div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">inline</span> Index row()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> index(); }</div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">inline</span> Index col()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_outer; }</div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">inline</span> Index supIndex()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_supno; }</div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  </div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">inline</span> <span class="keyword">operator</span> bool()<span class="keyword"> const </span></div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> ( (m_idval < m_endidval) && (m_idval >= m_startidval)</div> <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  && (m_idrow < m_endidrow) );</div> <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div> <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">const</span> MappedSuperNodalMatrix& m_matrix; <span class="comment">// Supernodal lower triangular matrix </span></div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">const</span> Index m_outer; <span class="comment">// Current column </span></div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">const</span> Index m_supno; <span class="comment">// Current SuperNode number</span></div> <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  Index m_idval; <span class="comment">// Index to browse the values in the current column</span></div> <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">const</span> Index m_startidval; <span class="comment">// Start of the column value</span></div> <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">const</span> Index m_endidval; <span class="comment">// End of the column value</span></div> <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  Index m_idrow; <span class="comment">// Index to browse the row indices </span></div> <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  Index m_endidrow; <span class="comment">// End index of row indices of the current column</span></div> <div class="line"><a name="l00226"></a><span class="lineno"> 226</span> };</div> <div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div> <div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">template</span><<span class="keyword">typename</span> Scalar, <span class="keyword">typename</span> Index></div> <div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">template</span><<span class="keyword">typename</span> Dest></div> <div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="keywordtype">void</span> MappedSuperNodalMatrix<Scalar,Index>::solveInPlace( MatrixBase<Dest>&X)<span class="keyword"> const</span></div> <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keyword"></span>{</div> <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  Index n = X.rows(); </div> <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  Index nrhs = X.cols(); </div> <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">const</span> Scalar * Lval = valuePtr(); <span class="comment">// Nonzero values </span></div> <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  Matrix<Scalar,Dynamic,Dynamic> work(n, nrhs); <span class="comment">// working vector</span></div> <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  work.setZero();</div> <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">for</span> (Index k = 0; k <= nsuper(); k ++)</div> <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  {</div> <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  Index fsupc = supToCol()[k]; <span class="comment">// First column of the current supernode </span></div> <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  Index istart = rowIndexPtr()[fsupc]; <span class="comment">// Pointer index to the subscript of the current column</span></div> <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  Index nsupr = rowIndexPtr()[fsupc+1] - istart; <span class="comment">// Number of rows in the current supernode</span></div> <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  Index nsupc = supToCol()[k+1] - fsupc; <span class="comment">// Number of columns in the current supernode</span></div> <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  Index nrow = nsupr - nsupc; <span class="comment">// Number of rows in the non-diagonal part of the supernode</span></div> <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  Index irow; <span class="comment">//Current index row</span></div> <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  </div> <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> (nsupc == 1 )</div> <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  {</div> <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">for</span> (Index j = 0; j < nrhs; j++)</div> <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  {</div> <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  InnerIterator it(*<span class="keyword">this</span>, fsupc);</div> <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  ++it; <span class="comment">// Skip the diagonal element</span></div> <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">for</span> (; it; ++it)</div> <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  {</div> <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  irow = it.row();</div> <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  X(irow, j) -= X(fsupc, j) * it.value();</div> <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div> <div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  }</div> <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div> <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  {</div> <div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">// The supernode has more than one column </span></div> <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  Index luptr = colIndexPtr()[fsupc]; </div> <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  Index lda = colIndexPtr()[fsupc+1] - luptr;</div> <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div> <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// Triangular solve </span></div> <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  Map<const Matrix<Scalar,Dynamic,Dynamic>, 0, OuterStride<> > A( &(Lval[luptr]), nsupc, nsupc, OuterStride<>(lda) ); </div> <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  Map< Matrix<Scalar,Dynamic,Dynamic>, 0, OuterStride<> > U (&(X(fsupc,0)), nsupc, nrhs, OuterStride<>(n) ); </div> <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  U = A.template triangularView<UnitLower>().solve(U); </div> <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  </div> <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// Matrix-vector product </span></div> <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keyword">new</span> (&A) Map<<span class="keyword">const</span> Matrix<Scalar,Dynamic,Dynamic>, 0, OuterStride<> > ( &(Lval[luptr+nsupc]), nrow, nsupc, OuterStride<>(lda) ); </div> <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  work.block(0, 0, nrow, nrhs) = A * U; </div> <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  </div> <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">//Begin Scatter </span></div> <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">for</span> (Index j = 0; j < nrhs; j++)</div> <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  {</div> <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  Index iptr = istart + nsupc; </div> <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">for</span> (Index i = 0; i < nrow; i++)</div> <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  {</div> <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  irow = rowIndex()[iptr]; </div> <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  X(irow, j) -= work(i, j); <span class="comment">// Scatter operation</span></div> <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  work(i, j) = Scalar(0); </div> <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  iptr++;</div> <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div> <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div> <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div> <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  } </div> <div class="line"><a name="l00292"></a><span class="lineno"> 292</span> }</div> <div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div> <div class="line"><a name="l00294"></a><span class="lineno"> 294</span> } <span class="comment">// end namespace internal</span></div> <div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div> <div class="line"><a name="l00296"></a><span class="lineno"> 296</span> } <span class="comment">// end namespace Eigen</span></div> <div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div> <div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="preprocessor">#endif // EIGEN_SPARSELU_MATRIX_H</span></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_e49d68e3078f12dfcf157021597ad168.html">Eigen</a></li><li class="navelem"><a class="el" href="dir_64b228556dc7f9fe757d43bb57fbfc24.html">src</a></li><li class="navelem"><a class="el" href="dir_43b7fa11304fca39592f14c296504e53.html">SparseLU</a></li><li class="navelem"><b>SparseLU_SupernodalMatrix.h</b></li> <li class="footer">Generated on Mon Oct 28 2013 11:04:25 for Eigen by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.5 </li> </ul> </div> <!-- Piwik --> <!-- <script type="text/javascript"> var pkBaseURL = (("https:" == document.location.protocol) ? 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