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  67 <a href="#define-members">Macros</a> &#124;
  68 <a href="#func-members">Functions</a>  </div>
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  70 <div class="title">common.cpp File Reference</div>  </div>
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  73 <div class="textblock"><code>#include &lt;cmath&gt;</code><br />
  74 <code>#include &lt;fstream&gt;</code><br />
  75 <code>#include &lt;numeric&gt;</code><br />
  76 <code>#include &lt;unistd.h&gt;</code><br />
  77 <code>#include &lt;sys/syscall.h&gt;</code><br />
  78 <code>#include &quot;<a class="el" href="common_8hpp_source.html">common.hpp</a>&quot;</code><br />
  79 </div><div class="textblock"><div class="dynheader">
  80 Include dependency graph for common.cpp:</div>
  81 <div class="dyncontent">
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  90 <p><a href="common_8cpp_source.html">Go to the source code of this file.</a></p>
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  92 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
  93 Macros</h2></td></tr>
  94 <tr class="memitem:a80c653d62783a4e7ea960794bd287b49"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a80c653d62783a4e7ea960794bd287b49">CPU_ID</a>&#160;&#160;&#160;4</td></tr>
  95 <tr class="separator:a80c653d62783a4e7ea960794bd287b49"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  97 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
  98 Functions</h2></td></tr>
  99 <tr class="memitem:ae39390f41ba978a1f0d79691436c074a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#ae39390f41ba978a1f0d79691436c074a">bind_to_cpu</a> (const unsigned cpu)</td></tr>
 100 <tr class="memdesc:ae39390f41ba978a1f0d79691436c074a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Attach current process to the selected core.  <a href="#ae39390f41ba978a1f0d79691436c074a">More...</a><br /></td></tr>
 101 <tr class="separator:ae39390f41ba978a1f0d79691436c074a"><td class="memSeparator" colspan="2">&#160;</td></tr>
 102 <tr class="memitem:a8265b710246f9019ff14556adf5eb35a"><td class="memItemLeft" align="right" valign="top">std::pair&lt; double, double &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a8265b710246f9019ff14556adf5eb35a">calculate_statistics</a> (const std::vector&lt; long &gt; values)</td></tr>
 103 <tr class="memdesc:a8265b710246f9019ff14556adf5eb35a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the mean and variance from the result of the run_benchmark.  <a href="#a8265b710246f9019ff14556adf5eb35a">More...</a><br /></td></tr>
 104 <tr class="separator:a8265b710246f9019ff14556adf5eb35a"><td class="memSeparator" colspan="2">&#160;</td></tr>
 105 <tr class="memitem:a39bf4f7770751080f5b72046abfd01a5"><td class="memItemLeft" align="right" valign="top">std::vector&lt; unsigned &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a39bf4f7770751080f5b72046abfd01a5">get_sequence</a> (const unsigned number)</td></tr>
 106 <tr class="memdesc:a39bf4f7770751080f5b72046abfd01a5"><td class="mdescLeft">&#160;</td><td class="mdescRight">For a given number return sequence of number from 0 to number - 1.  <a href="#a39bf4f7770751080f5b72046abfd01a5">More...</a><br /></td></tr>
 107 <tr class="separator:a39bf4f7770751080f5b72046abfd01a5"><td class="memSeparator" colspan="2">&#160;</td></tr>
 108 <tr class="memitem:a876ed07783b27d38779f7cef4db673e6"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a876ed07783b27d38779f7cef4db673e6">read_data_to_aligned_array</a> (const std::string &amp;filename)</td></tr>
 109 <tr class="memdesc:a876ed07783b27d38779f7cef4db673e6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read binary data from the file.  <a href="#a876ed07783b27d38779f7cef4db673e6">More...</a><br /></td></tr>
 110 <tr class="separator:a876ed07783b27d38779f7cef4db673e6"><td class="memSeparator" colspan="2">&#160;</td></tr>
 111 <tr class="memitem:ad8c062e9b24e4b3a8408b23a0d8ab428"><td class="memItemLeft" align="right" valign="top"><a class="el" href="common_8hpp.html#ab701e3ac61a85b337ec5c1abaad6742d">json</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#ad8c062e9b24e4b3a8408b23a0d8ab428">read_json_from_file</a> (const std::string &amp;filename)</td></tr>
 112 <tr class="memdesc:ad8c062e9b24e4b3a8408b23a0d8ab428"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read JSON from the given file.  <a href="#ad8c062e9b24e4b3a8408b23a0d8ab428">More...</a><br /></td></tr>
 113 <tr class="separator:ad8c062e9b24e4b3a8408b23a0d8ab428"><td class="memSeparator" colspan="2">&#160;</td></tr>
 114 <tr class="memitem:a56c41cbb9de4bce25da45ecd74b46a81"><td class="memItemLeft" align="right" valign="top">unsigned long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a56c41cbb9de4bce25da45ecd74b46a81">tsc_recovery</a> ()</td></tr>
 115 <tr class="memdesc:a56c41cbb9de4bce25da45ecd74b46a81"><td class="mdescLeft">&#160;</td><td class="mdescRight">Measure the TSC on the machine.  <a href="#a56c41cbb9de4bce25da45ecd74b46a81">More...</a><br /></td></tr>
 116 <tr class="separator:a56c41cbb9de4bce25da45ecd74b46a81"><td class="memSeparator" colspan="2">&#160;</td></tr>
 117 <tr class="memitem:a0ab5719a5f67d4d52057b2c4550fe930"><td class="memItemLeft" align="right" valign="top">unsigned long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="common_8cpp.html#a0ab5719a5f67d4d52057b2c4550fe930">tsc_tick</a> ()</td></tr>
 118 <tr class="memdesc:a0ab5719a5f67d4d52057b2c4550fe930"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the current value of the TSC.  <a href="#a0ab5719a5f67d4d52057b2c4550fe930">More...</a><br /></td></tr>
 119 <tr class="separator:a0ab5719a5f67d4d52057b2c4550fe930"><td class="memSeparator" colspan="2">&#160;</td></tr>
 120 </table>
 121 <h2 class="groupheader">Macro Definition Documentation</h2>
 122 <a id="a80c653d62783a4e7ea960794bd287b49"></a>
 123 <h2 class="memtitle"><span class="permalink"><a href="#a80c653d62783a4e7ea960794bd287b49">&#9670;&nbsp;</a></span>CPU_ID</h2>
 124
 125 <div class="memitem">
 126 <div class="memproto">
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 128         <tr>
 129           <td class="memname">#define CPU_ID&#160;&#160;&#160;4</td>
 130         </tr>
 131       </table>
 132 </div><div class="memdoc">
 133
 134 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00034">34</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
 135
 136 </div>
 137 </div>
 138 <h2 class="groupheader">Function Documentation</h2>
 139 <a id="ae39390f41ba978a1f0d79691436c074a"></a>
 140 <h2 class="memtitle"><span class="permalink"><a href="#ae39390f41ba978a1f0d79691436c074a">&#9670;&nbsp;</a></span>bind_to_cpu()</h2>
 141
 142 <div class="memitem">
 143 <div class="memproto">
 144       <table class="memname">
 145         <tr>
 146           <td class="memname">int bind_to_cpu </td>
 147           <td>(</td>
 148           <td class="paramtype">const unsigned&#160;</td>
 149           <td class="paramname"><em>cpu</em></td><td>)</td>
 150           <td></td>
 151         </tr>
 152       </table>
 153 </div><div class="memdoc">
 154
 155 <p>Attach current process to the selected core. </p>
 156 <dl class="params"><dt>Parameters</dt><dd>
 157   <table class="params">
 158     <tr><td class="paramdir">[in]</td><td class="paramname">cpu</td><td>Core number. </td></tr>
 159   </table>
 160   </dd>
 161 </dl>
 162 <dl class="section return"><dt>Returns</dt><dd>0 on success, -1 otherwise. </dd></dl>
 163
 164 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00047">47</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
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 181 <h2 class="memtitle"><span class="permalink"><a href="#a8265b710246f9019ff14556adf5eb35a">&#9670;&nbsp;</a></span>calculate_statistics()</h2>
 182
 183 <div class="memitem">
 184 <div class="memproto">
 185       <table class="memname">
 186         <tr>
 187           <td class="memname">std::pair&lt;double, double&gt; calculate_statistics </td>
 188           <td>(</td>
 189           <td class="paramtype">const std::vector&lt; long &gt;&#160;</td>
 190           <td class="paramname"><em>values</em></td><td>)</td>
 191           <td></td>
 192         </tr>
 193       </table>
 194 </div><div class="memdoc">
 195
 196 <p>Calculate the mean and variance from the result of the run_benchmark. </p>
 197 <dl class="params"><dt>Parameters</dt><dd>
 198   <table class="params">
 199     <tr><td class="paramdir">[in]</td><td class="paramname">values</td><td>Vector with result values. </td></tr>
 200   </table>
 201   </dd>
 202 </dl>
 203 <dl class="section return"><dt>Returns</dt><dd>std::pair where the first element is mean and the second one is standard deviation. </dd></dl>
 204 <dl class="section note"><dt>Note</dt><dd>It's not a general mean/stddev function it only works properly when feed with data from the benchmark function. </dd></dl>
 205
 206 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00060">60</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
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 225
 226 <div class="memitem">
 227 <div class="memproto">
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 229         <tr>
 230           <td class="memname">std::vector&lt;unsigned&gt; get_sequence </td>
 231           <td>(</td>
 232           <td class="paramtype">const unsigned&#160;</td>
 233           <td class="paramname"><em>number</em></td><td>)</td>
 234           <td></td>
 235         </tr>
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 237 </div><div class="memdoc">
 238
 239 <p>For a given number return sequence of number from 0 to number - 1. </p>
 240 <dl class="params"><dt>Parameters</dt><dd>
 241   <table class="params">
 242     <tr><td class="paramdir">[in]</td><td class="paramname">number</td><td>Positive integer value. </td></tr>
 243   </table>
 244   </dd>
 245 </dl>
 246 <dl class="section return"><dt>Returns</dt><dd>Vector with the sorted integer numbers between 0 and number - 1. </dd></dl>
 247
 248 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00078">78</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
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 264 <h2 class="memtitle"><span class="permalink"><a href="#a876ed07783b27d38779f7cef4db673e6">&#9670;&nbsp;</a></span>read_data_to_aligned_array()</h2>
 265
 266 <div class="memitem">
 267 <div class="memproto">
 268       <table class="memname">
 269         <tr>
 270           <td class="memname">char* read_data_to_aligned_array </td>
 271           <td>(</td>
 272           <td class="paramtype">const std::string &amp;&#160;</td>
 273           <td class="paramname"><em>filename</em></td><td>)</td>
 274           <td></td>
 275         </tr>
 276       </table>
 277 </div><div class="memdoc">
 278
 279 <p>Read binary data from the file. </p>
 280 <dl class="params"><dt>Parameters</dt><dd>
 281   <table class="params">
 282     <tr><td class="paramdir">[in]</td><td class="paramname">filename</td><td>name of the binary file. </td></tr>
 283   </table>
 284   </dd>
 285 </dl>
 286 <dl class="section return"><dt>Returns</dt><dd>Pointer to the allocated memory with data from the file. </dd></dl>
 287 <dl class="exception"><dt>Exceptions</dt><dd>
 288   <table class="exception">
 289     <tr><td class="paramname">std::runtime_error</td><td>when memory cannot be allocated. </td></tr>
 290   </table>
 291   </dd>
 292 </dl>
 293
 294 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00086">86</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
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 317
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 319 <div class="memproto">
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 322           <td class="memname"><a class="el" href="common_8hpp.html#ab701e3ac61a85b337ec5c1abaad6742d">json</a> read_json_from_file </td>
 323           <td>(</td>
 324           <td class="paramtype">const std::string &amp;&#160;</td>
 325           <td class="paramname"><em>filename</em></td><td>)</td>
 326           <td></td>
 327         </tr>
 328       </table>
 329 </div><div class="memdoc">
 330
 331 <p>Read JSON from the given file. </p>
 332 <dl class="params"><dt>Parameters</dt><dd>
 333   <table class="params">
 334     <tr><td class="paramdir">[in]</td><td class="paramname">filename</td><td>name of the .json file. </td></tr>
 335   </table>
 336   </dd>
 337 </dl>
 338 <dl class="section return"><dt>Returns</dt><dd>JSON object with data. </dd></dl>
 339 <dl class="exception"><dt>Exceptions</dt><dd>
 340   <table class="exception">
 341     <tr><td class="paramname"><a class="el" href="structmissing__config__file__exception.html">missing_config_file_exception</a></td><td>when file cannot be opened. </td></tr>
 342   </table>
 343   </dd>
 344 </dl>
 345
 346 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00106">106</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
 347 <div class="dynheader">
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 365 <h2 class="memtitle"><span class="permalink"><a href="#a56c41cbb9de4bce25da45ecd74b46a81">&#9670;&nbsp;</a></span>tsc_recovery()</h2>
 366
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 369       <table class="memname">
 370         <tr>
 371           <td class="memname">unsigned long tsc_recovery </td>
 372           <td>(</td>
 373           <td class="paramname"></td><td>)</td>
 374           <td></td>
 375         </tr>
 376       </table>
 377 </div><div class="memdoc">
 378
 379 <p>Measure the TSC on the machine. </p>
 380 <dl class="section return"><dt>Returns</dt><dd>Number of ticks per us </dd></dl>
 381
 382 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00119">119</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
 383 <div class="dynheader">
 384 Here is the call graph for this function:</div>
 385 <div class="dyncontent">
 386 <div class="center"><img src="common_8cpp_a56c41cbb9de4bce25da45ecd74b46a81_cgraph.png" border="0" usemap="#common_8cpp_a56c41cbb9de4bce25da45ecd74b46a81_cgraph" alt=""/></div>
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 392 Here is the caller graph for this function:</div>
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 407
 408 <div class="memitem">
 409 <div class="memproto">
 410       <table class="memname">
 411         <tr>
 412           <td class="memname">unsigned long tsc_tick </td>
 413           <td>(</td>
 414           <td class="paramname"></td><td>)</td>
 415           <td></td>
 416         </tr>
 417       </table>
 418 </div><div class="memdoc">
 419
 420 <p>Return the current value of the TSC. </p>
 421 <dl class="section return"><dt>Returns</dt><dd>Current TSC value </dd></dl>
 422
 423 <p class="definition">Definition at line <a class="el" href="common_8cpp_source.html#l00162">162</a> of file <a class="el" href="common_8cpp_source.html">common.cpp</a>.</p>
 424 <div class="dynheader">
 425 Here is the caller graph for this function:</div>
 426 <div class="dyncontent">
 427 <div class="center"><img src="common_8cpp_a0ab5719a5f67d4d52057b2c4550fe930_icgraph.png" border="0" usemap="#common_8cpp_a0ab5719a5f67d4d52057b2c4550fe930_icgraph" alt=""/></div>
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 438 </div>
 439 </div><!-- contents -->
 440 <!-- start footer part -->
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 442 Generated by &#160;<a href="http://www.doxygen.org/index.html">
 443 <img class="footer" src="doxygen.png" alt="doxygen"/>
 444 </a> 1.8.13
 445 </small></address>
 446 </body>
 447 </html>