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<div id="projectname">PISM, A Parallel Ice Sheet Model
 <span id="projectnumber">stable v2.1.1 committed by Constantine Khrulev on 2024-12-04 13:36:58 -0900</span>
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<a href="Array__helpers_8hh.html">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">// Copyright (C) 2011, 2013, 2014, 2016, 2017, 2020, 2021, 2022, 2023 PISM Authors</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// This file is part of PISM.</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="comment">// PISM is free software; you can redistribute it and/or modify it under the</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// terms of the GNU General Public License as published by the Free Software</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Foundation; either version 3 of the License, or (at your option) any later</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// version.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">//</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// PISM is distributed in the hope that it will be useful, but WITHOUT ANY</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// details.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">//</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// along with PISM; if not, write to the Free Software</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef PISM_ARRAY_HELPERS_H</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define PISM_ARRAY_HELPERS_H</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "pism/util/Grid.hh"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span><a class="code" href="namespacepism.html">pism</a> {</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> <span class="keyword">namespace </span>array {</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="namespacepism_1_1array_1_1details.html"> 28</a></span> <span class="keyword">namespace </span>details {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"></span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">//! \brief Computes result = x + alpha * y, where x, y, and z are 2D</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">//! Arrays (scalar or vector).</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"></span><span class="comment">/*!</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">template</span> <<span class="keyword">class</span> V></div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacepism_1_1array_1_1details_a5d44cd8277166194373912546db8b44f.html#a5d44cd8277166194373912546db8b44f"> 35</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacepism_1_1array_1_1details_a5d44cd8277166194373912546db8b44f.html#a5d44cd8277166194373912546db8b44f">add</a>(<span class="keyword">const</span> V &x, <span class="keywordtype">double</span> alpha, <span class="keyword">const</span> V &y, V &result, <span class="keywordtype">bool</span> scatter = <span class="keyword">true</span>) {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="classpism_1_1array_1_1AccessScope.html">array::AccessScope</a> list{ &x, &y, &result };</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> p = result.grid()->points(); p; p.next()) {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> i = p.i(), j = p.j();</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>  result(i, j) = x(i, j) + y(i, j) * alpha;</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>  <span class="keywordflow">if</span> (scatter) {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  result.update_ghosts();</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>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  result.inc_state_counter();</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> <span class="keyword">template</span> <<span class="keyword">class</span> V></div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="namespacepism_1_1array_1_1details_a7411388ce2c6572dcd85fe717ae1fee9.html#a7411388ce2c6572dcd85fe717ae1fee9"> 52</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacepism_1_1array_1_1details_a7411388ce2c6572dcd85fe717ae1fee9.html#a7411388ce2c6572dcd85fe717ae1fee9">copy</a>(<span class="keyword">const</span> V &input, V &result, <span class="keywordtype">bool</span> scatter = <span class="keyword">true</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>  <a class="code" href="classpism_1_1array_1_1AccessScope.html">array::AccessScope</a> list{ &input, &result };</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>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> p = result.grid()->points(); p; p.next()) {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> i = p.i(), j = p.j();</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>  result(i, j) = input(i, j);</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>  </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (scatter) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  result.update_ghosts();</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>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  result.inc_state_counter();</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"> 69</span> } <span class="comment">// namespace details</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> } <span class="comment">// namespace array</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> } <span class="comment">// end of namespace pism</span></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="preprocessor">#endif </span><span class="comment">/* PISM_ARRAY_HELPERS_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="aclasspism_1_1array_1_1AccessScope_html"><div class="ttname"><a href="classpism_1_1array_1_1AccessScope.html">pism::array::AccessScope</a></div><div class="ttdoc">Makes sure that we call begin_access() and end_access() for all accessed array::Arrays.</div><div class="ttdef"><b>Definition:</b> <a href="Array_8hh_source.html#l00065">Array.hh:65</a></div></div>
<div class="ttc" id="anamespacepism_1_1array_1_1details_a5d44cd8277166194373912546db8b44f_html_a5d44cd8277166194373912546db8b44f"><div class="ttname"><a href="namespacepism_1_1array_1_1details_a5d44cd8277166194373912546db8b44f.html#a5d44cd8277166194373912546db8b44f">pism::array::details::add</a></div><div class="ttdeci">void add(const V &x, double alpha, const V &y, V &result, bool scatter=true)</div><div class="ttdoc">Computes result = x + alpha * y, where x, y, and z are 2D Arrays (scalar or vector).</div><div class="ttdef"><b>Definition:</b> <a href="Array__helpers_8hh_source.html#l00035">Array_helpers.hh:35</a></div></div>
<div class="ttc" id="anamespacepism_1_1array_1_1details_a7411388ce2c6572dcd85fe717ae1fee9_html_a7411388ce2c6572dcd85fe717ae1fee9"><div class="ttname"><a href="namespacepism_1_1array_1_1details_a7411388ce2c6572dcd85fe717ae1fee9.html#a7411388ce2c6572dcd85fe717ae1fee9">pism::array::details::copy</a></div><div class="ttdeci">void copy(const V &input, V &result, bool scatter=true)</div><div class="ttdef"><b>Definition:</b> <a href="Array__helpers_8hh_source.html#l00052">Array_helpers.hh:52</a></div></div>
<div class="ttc" id="anamespacepism_html"><div class="ttname"><a href="namespacepism.html">pism</a></div><div class="ttdef"><b>Definition:</b> <a href="AgeColumnSystem_8cc_source.html#l00023">AgeColumnSystem.cc:23</a></div></div>
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