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Cory Balaton
2023-12-05 19:32:43 +01:00
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@@ -101,31 +101,16 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="headertitle"><div class="title">phase_transition_mpi.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="phase__transition__mpi_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/** @file phase_transition_mpi.cpp</span></div>
<div class="line"><span class="lineno"> 2</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 3</span><span class="comment"> * @author Cory Alexander Balaton (coryab)</span></div>
<div class="line"><span class="lineno"> 4</span><span class="comment"> * @author Janita Ovidie Sandtrøen Willumsen (janitaws)</span></div>
<div class="line"><span class="lineno"> 5</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 6</span><span class="comment"> * @version 1.0</span></div>
<div class="line"><span class="lineno"> 7</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 8</span><span class="comment"> * @brief Sweep over different temperatures and generate data.</span></div>
<div class="line"><span class="lineno"> 9</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 10</span><span class="comment"> * @details This program takes in 4 arguments: the start temperature,</span></div>
<div class="line"><span class="lineno"> 11</span><span class="comment"> * the end temperature, the amount of temperature points to simulate, and</span></div>
<div class="line"><span class="lineno"> 12</span><span class="comment"> * the amount of monte carlo samples to collect, in that order.</span></div>
<div class="line"><span class="lineno"> 13</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 14</span><span class="comment"> * @bug No known bugs</span></div>
<div class="line"><span class="lineno"> 15</span><span class="comment"> * */</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="data__type_8hpp.html" title="Header for the data_t type.">&quot;data_type.hpp&quot;</a></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="monte__carlo_8hpp.html" title="Functions for Monte Carlo simulations.">&quot;monte_carlo.hpp&quot;</a></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="utils_8hpp.html" title="Function prototypes and macros that are useful.">&quot;utils.hpp&quot;</a></div>
<a href="phase__transition__mpi_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &quot;<a class="code" href="data__type_8hpp.html">data_type.hpp</a>&quot;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &quot;<a class="code" href="monte__carlo_8hpp.html">monte_carlo.hpp</a>&quot;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &quot;<a class="code" href="utils_8hpp.html">utils.hpp</a>&quot;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <span class="preprocessor">&lt;</span><span class="preprocessor">getopt</span><span class="preprocessor">.</span><span class="preprocessor">h</span><span class="preprocessor">&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <span class="preprocessor">&lt;</span><span class="preprocessor">mpi</span><span class="preprocessor">.</span><span class="preprocessor">h</span><span class="preprocessor">&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#</span><span class="preprocessor">include</span> <span class="preprocessor">&lt;</span><span class="preprocessor">string</span><span class="preprocessor">&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include &lt;getopt.h&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &lt;mpi.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment">/** @brief A function that displays how to use the program and quits.*/</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1"> 25</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="main_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a>(std::string filename)</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1"> 25</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a>(std::string filename)</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>{</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> std::cout</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> &lt;&lt; <span class="stringliteral">&quot;Usage: &quot;</span> &lt;&lt; filename</div>
@@ -137,11 +122,10 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> exit(-1);</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>}</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">/** @brief The main function.*/</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="phase__transition__mpi_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627"> 38</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="main_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="phase__transition__mpi_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627"> 38</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="test__suite_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span>{</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="comment">// Command options</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">struct</span> option long_options[] = {{<span class="stringliteral">&quot;help&quot;</span>, 0, 0, 0}, {NULL, 0, NULL, 0}};</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">struct </span>option long_options[] = {{<span class="stringliteral">&quot;help&quot;</span>, 0, 0, 0}, {NULL, 0, NULL, 0}};</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">int</span> option_index = -1;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">int</span> c;</div>
@@ -157,17 +141,17 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">switch</span> (option_index) {</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">case</span> 0: <span class="comment">// Not a mistake. This just goes to the default.</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> usage(argv[0]);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <a class="code hl_function" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a>(argv[0]);</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">case</span> <span class="stringliteral">&#39;h&#39;</span>:</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">case</span> <span class="charliteral">&#39;h&#39;</span>:</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> usage(argv[0]);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_function" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a>(argv[0]);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// Check that the number of arguments is at least 8.</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">if</span> (argc &lt; 8) {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> usage(argv[0]);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <a class="code hl_function" href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a>(argv[0]);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// Timing variables</span></div>
@@ -211,9 +195,9 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <a class="code hl_class" href="classdata__t.html">data_t</a> i_data[i_points];</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// Simulate and save data to array</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">for</span> (size_t i = 0; i &lt; i_points; i++) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> i_data[i] = montecarlo<a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">::</a><a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">mcmc_parallel</a><a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">(</a>L<a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">,</a> i_start + dt * i<a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">,</a> cycles<a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">,</a></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> burn_in_time<a class="code hl_function" href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">)</a>;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; i_points; i++) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> i_data[i] = montecarlo::mcmc_parallel(L, i_start + dt * i, cycles,</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> burn_in_time);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> }</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// Rank 0 collects all the data and copies it to the &quot;master&quot;</span></div>
@@ -223,17 +207,17 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::copy_n(i_data, i_points, data);</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Collect i_data from other ranks in order and copy to data.</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">for</span> (size_t i = 1; i &lt; cluster_size; i++) {</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 1; i &lt; cluster_size; i++) {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">if</span> (rank &lt; remainder) {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> MPI_Recv((<span class="keywordtype">void</span> *)i_data,</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">sizeof</span>(data_t) * (points / cluster_size + 1), MPI_CHAR,</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">sizeof</span>(<a class="code hl_class" href="classdata__t.html">data_t</a>) * (points / cluster_size + 1), MPI_CHAR,</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> i, MPI_ANY_TAG, MPI_COMM_WORLD, MPI_STATUS_IGNORE);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> std::copy_n(i_data, points / cluster_size + 1,</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> data + (points / cluster_size) * i);</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> MPI_Recv((<span class="keywordtype">void</span> *)i_data,</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">sizeof</span>(data_t) * (points / cluster_size), MPI_CHAR, i,</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">sizeof</span>(<a class="code hl_class" href="classdata__t.html">data_t</a>) * (points / cluster_size), MPI_CHAR, i,</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> MPI_ANY_TAG, MPI_COMM_WORLD, MPI_STATUS_IGNORE);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> std::copy_n(i_data, points / cluster_size,</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> data + (points / cluster_size) * i + remainder);</div>
@@ -241,30 +225,30 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// Write everything from data to file</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> utils<a class="code hl_function" href="utils_8hpp.html#a2b45adc86b70f42021582994e83fa00d">::</a><a class="code hl_function" href="utils_8hpp.html#a2b45adc86b70f42021582994e83fa00d">mkpath</a><a class="code hl_function" href="utils_8hpp.html#a2b45adc86b70f42021582994e83fa00d">(</a>utils<a class="code hl_function" href="utils_8hpp.html#aed026119193a9bbe076671809ff0f430">::</a><a class="code hl_function" href="utils_8hpp.html#aed026119193a9bbe076671809ff0f430">dirname</a><a class="code hl_function" href="utils_8hpp.html#aed026119193a9bbe076671809ff0f430">(</a>outfile<a class="code hl_function" href="utils_8hpp.html#aed026119193a9bbe076671809ff0f430">)</a><a class="code hl_function" href="utils_8hpp.html#a2b45adc86b70f42021582994e83fa00d">)</a>;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> utils::mkpath(utils::dirname(outfile));</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> ofile.open(outfile);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordtype">double</span> temp, CV, X;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">using</span> utils::scientific_format;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">for</span> (size_t i = 0; i &lt; points; i++) {</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">using </span>utils::scientific_format;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; points; i++) {</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> temp = start + dt * i;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> CV = (data[i].E2 - data[i].E * data[i].E)</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> CV = (data[i].<a class="code hl_variable" href="classdata__t.html#abb622f9c6cc5ffb9dddb151d2e202f72">E2</a> - data[i].<a class="code hl_variable" href="classdata__t.html#a6c1a196d96e177b11ca98c61fae35a2e">E</a> * data[i].<a class="code hl_variable" href="classdata__t.html#a6c1a196d96e177b11ca98c61fae35a2e">E</a>)</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> / ((<span class="keywordtype">double</span>)N * temp * temp);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> X = (data[i].M2 - data[i].M_abs * data[i].M_abs)</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> X = (data[i].<a class="code hl_variable" href="classdata__t.html#a71ae3cd4460f2c66239500c11804e70b">M2</a> - data[i].<a class="code hl_variable" href="classdata__t.html#a586475e0f71322dffda2e75f228ab24b">M_abs</a> * data[i].<a class="code hl_variable" href="classdata__t.html#a586475e0f71322dffda2e75f228ab24b">M_abs</a>)</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> / ((<span class="keywordtype">double</span>)N * temp);</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> ofile &lt;&lt; <a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">scientific_format</a><a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">(</a>temp<a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">)</a> &lt;&lt; <span class="stringliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> &lt;&lt; scientific_format(data[i].E / N) &lt;&lt; <span class="stringliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> &lt;&lt; scientific_format(data[i].M_abs / N) &lt;&lt; <span class="stringliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> &lt;&lt; <a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">scientific_format</a><a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">(</a>CV<a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">)</a> &lt;&lt; <span class="stringliteral">&#39;,&#39;</span> &lt;&lt; <a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">scientific_format</a><a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">(</a>X<a class="code hl_function" href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">)</a></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> &lt;&lt; <span class="stringliteral">&#39;\n&#39;</span>;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> ofile &lt;&lt; scientific_format(temp) &lt;&lt; <span class="charliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> &lt;&lt; scientific_format(data[i].E / N) &lt;&lt; <span class="charliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> &lt;&lt; scientific_format(data[i].M_abs / N) &lt;&lt; <span class="charliteral">&#39;,&#39;</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> &lt;&lt; scientific_format(CV) &lt;&lt; <span class="charliteral">&#39;,&#39;</span> &lt;&lt; scientific_format(X)</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> }</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> ofile.close();</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> }</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// For all other ranks, send the data to rank 0</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> MPI_Send(i_data, i_points * <span class="keyword">sizeof</span>(data_t), MPI_CHAR, 0, rank,</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> MPI_Send(i_data, i_points * <span class="keyword">sizeof</span>(<a class="code hl_class" href="classdata__t.html">data_t</a>), MPI_CHAR, 0, rank,</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> MPI_COMM_WORLD);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> }</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
@@ -277,12 +261,15 @@ $(document).ready(function(){initNavTree('phase__transition__mpi_8cpp_source.htm
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> MPI_Finalize();</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span>}</div>
<div class="ttc" id="aclassdata__t_html"><div class="ttname"><a href="classdata__t.html">data_t</a></div><div class="ttdoc">Type to use with the IsingModel class and montecarlo module.</div><div class="ttdef"><b>Definition:</b> <a href="data__type_8hpp_source.html#l00019">data_type.hpp:19</a></div></div>
<div class="ttc" id="amain_8cpp_html_a3c04138a5bfe5d72780bb7e82a18e627"><div class="ttname"><a href="main_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a></div><div class="ttdeci">int main(int argc, char **argv)</div><div class="ttdoc">The main function.</div><div class="ttdef"><b>Definition:</b> <a href="main_8cpp_source.html#l00125">main.cpp:125</a></div></div>
<div class="ttc" id="amain_8cpp_html_ac907e18135856c90366aaa599a9e10b1"><div class="ttname"><a href="main_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a></div><div class="ttdeci">void usage(std::string filename)</div><div class="ttdoc">A function that displays how to use the program and quits.</div><div class="ttdef"><b>Definition:</b> <a href="main_8cpp_source.html#l00110">main.cpp:110</a></div></div>
<div class="ttc" id="amonte__carlo_8hpp_html_ae1e7f904ecfc3d8f3c4dd1ef155dd771"><div class="ttname"><a href="monte__carlo_8hpp.html#ae1e7f904ecfc3d8f3c4dd1ef155dd771">montecarlo::mcmc_parallel</a></div><div class="ttdeci">data_t mcmc_parallel(int L, double T, int cycles, int burn_in_time=BURN_IN_TIME)</div><div class="ttdoc">Execute the Metropolis algorithm for a certain amount of Monte Carlo cycles in parallel.</div><div class="ttdef"><b>Definition:</b> <a href="monte__carlo_8cpp_source.html#l00127">monte_carlo.cpp:127</a></div></div>
<div class="ttc" id="autils_8hpp_html_a2b45adc86b70f42021582994e83fa00d"><div class="ttname"><a href="utils_8hpp.html#a2b45adc86b70f42021582994e83fa00d">utils::mkpath</a></div><div class="ttdeci">bool mkpath(std::string path, int mode=0777)</div><div class="ttdoc">Make path given.</div><div class="ttdef"><b>Definition:</b> <a href="utils_8cpp_source.html#l00032">utils.cpp:32</a></div></div>
<div class="ttc" id="autils_8hpp_html_a3529a74fd2a25d24de73d9d4e1c90835"><div class="ttname"><a href="utils_8hpp.html#a3529a74fd2a25d24de73d9d4e1c90835">utils::scientific_format</a></div><div class="ttdeci">std::string scientific_format(double d, int width=20, int prec=10)</div><div class="ttdoc">Turns a double into a string written in scientific format.</div><div class="ttdef"><b>Definition:</b> <a href="utils_8cpp_source.html#l00016">utils.cpp:16</a></div></div>
<div class="ttc" id="autils_8hpp_html_aed026119193a9bbe076671809ff0f430"><div class="ttname"><a href="utils_8hpp.html#aed026119193a9bbe076671809ff0f430">utils::dirname</a></div><div class="ttdeci">std::string dirname(const std::string &amp;path)</div><div class="ttdoc">Get the directory name of the path.</div><div class="ttdef"><b>Definition:</b> <a href="utils_8cpp_source.html#l00058">utils.cpp:58</a></div></div>
<div class="ttc" id="aclassdata__t_html_a586475e0f71322dffda2e75f228ab24b"><div class="ttname"><a href="classdata__t.html#a586475e0f71322dffda2e75f228ab24b">data_t::M_abs</a></div><div class="ttdeci">double M_abs</div><div class="ttdoc">Absolute Magnetization.</div><div class="ttdef"><b>Definition:</b> <a href="data__type_8hpp_source.html#l00025">data_type.hpp:25</a></div></div>
<div class="ttc" id="aclassdata__t_html_a6c1a196d96e177b11ca98c61fae35a2e"><div class="ttname"><a href="classdata__t.html#a6c1a196d96e177b11ca98c61fae35a2e">data_t::E</a></div><div class="ttdeci">double E</div><div class="ttdoc">Energy.</div><div class="ttdef"><b>Definition:</b> <a href="data__type_8hpp_source.html#l00021">data_type.hpp:21</a></div></div>
<div class="ttc" id="aclassdata__t_html_a71ae3cd4460f2c66239500c11804e70b"><div class="ttname"><a href="classdata__t.html#a71ae3cd4460f2c66239500c11804e70b">data_t::M2</a></div><div class="ttdeci">double M2</div><div class="ttdoc">Magnetization squared.</div><div class="ttdef"><b>Definition:</b> <a href="data__type_8hpp_source.html#l00024">data_type.hpp:24</a></div></div>
<div class="ttc" id="aclassdata__t_html_abb622f9c6cc5ffb9dddb151d2e202f72"><div class="ttname"><a href="classdata__t.html#abb622f9c6cc5ffb9dddb151d2e202f72">data_t::E2</a></div><div class="ttdeci">double E2</div><div class="ttdoc">Energy squared.</div><div class="ttdef"><b>Definition:</b> <a href="data__type_8hpp_source.html#l00023">data_type.hpp:23</a></div></div>
<div class="ttc" id="adata__type_8hpp_html"><div class="ttname"><a href="data__type_8hpp.html">data_type.hpp</a></div><div class="ttdoc">Header for the data_t type.</div></div>
<div class="ttc" id="amonte__carlo_8hpp_html"><div class="ttname"><a href="monte__carlo_8hpp.html">monte_carlo.hpp</a></div><div class="ttdoc">Functions for Monte Carlo simulations.</div></div>
<div class="ttc" id="aphase__transition__mpi_8cpp_html_ac907e18135856c90366aaa599a9e10b1"><div class="ttname"><a href="phase__transition__mpi_8cpp.html#ac907e18135856c90366aaa599a9e10b1">usage</a></div><div class="ttdeci">void usage(std::string filename)</div><div class="ttdoc">A function that displays how to use the program and quits.</div><div class="ttdef"><b>Definition:</b> <a href="phase__transition__mpi_8cpp_source.html#l00025">phase_transition_mpi.cpp:25</a></div></div>
<div class="ttc" id="atest__suite_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="test__suite_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">The main function.</div><div class="ttdef"><b>Definition:</b> <a href="test__suite_8cpp_source.html#l00110">test_suite.cpp:110</a></div></div>
<div class="ttc" id="autils_8hpp_html"><div class="ttname"><a href="utils_8hpp.html">utils.hpp</a></div><div class="ttdoc">Function prototypes and macros that are useful.</div></div>
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