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<title>PHPC - nBody project: /media/lmunier/Data/EPFL/Master/2eme_annee/Semestre_2/Parallel_and_High_Performance_Computing/phpc_submit_nbody/src/constants.hpp File Reference</title>
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<div class="textblock"><code>#include &lt;iostream&gt;</code><br />
<code>#include &lt;fstream&gt;</code><br />
<code>#include &lt;string&gt;</code><br />
<code>#include &lt;cstdlib&gt;</code><br />
<code>#include &lt;cstdint&gt;</code><br />
<code>#include &lt;random&gt;</code><br />
<code>#include &lt;math.h&gt;</code><br />
<code>#include &lt;curand.h&gt;</code><br />
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<p><a href="constants_8hpp_source.html">Go to the source code of this file.</a></p>
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<tr class="memitem:a8b5173357adb02a86c027316e0acdfa0"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="constants_8hpp.html#a8b5173357adb02a86c027316e0acdfa0">MAX_THREADS</a>&#160;&#160;&#160;1024</td></tr>
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<tr class="memitem:aa9cc087d076e4fa101f8794a947bd01a"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="constants_8hpp.html#aa9cc087d076e4fa101f8794a947bd01a">ITERATIONS</a>&#160;&#160;&#160;200</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><dl class="section author"><dt>Author</dt><dd>Munier Louis </dd></dl>
<dl class="section date"><dt>Date</dt><dd>30.05.19 </dd></dl>
<dl class="section version"><dt>Version</dt><dd>1.0</dd></dl>
<p>Constants file to have all the desired constants of the overall project. </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a5400b1f2028d38732e4377be4f32b255"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5400b1f2028d38732e4377be4f32b255">&#9670;&nbsp;</a></span>DELTA_T</h2>
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<td class="memname">#define DELTA_T&#160;&#160;&#160;0.05f</td>
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<p>duration of each update timestep </p>
</div>
</div>
<a id="a3deeed386c13e0d2526898f3cf3db3cf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3deeed386c13e0d2526898f3cf3db3cf">&#9670;&nbsp;</a></span>DIM_3</h2>
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<td class="memname">#define DIM_3&#160;&#160;&#160;3</td>
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<p>number of dimension in 3D </p>
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<a id="a002b2f4894492820fe708b1b7e7c5e70"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a002b2f4894492820fe708b1b7e7c5e70">&#9670;&nbsp;</a></span>EPSILON</h2>
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<td class="memname">#define EPSILON&#160;&#160;&#160;0.005f</td>
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<p>to avoid collision between particles </p>
</div>
</div>
<a id="aed9ea78689ecce0b7264c02c7f8a9a54"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aed9ea78689ecce0b7264c02c7f8a9a54">&#9670;&nbsp;</a></span>G</h2>
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<td class="memname">#define G&#160;&#160;&#160;6.67408e-11f</td>
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<p>gravitational general constant </p>
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</div>
<a id="aa9cc087d076e4fa101f8794a947bd01a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa9cc087d076e4fa101f8794a947bd01a">&#9670;&nbsp;</a></span>ITERATIONS</h2>
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<td class="memname">#define ITERATIONS&#160;&#160;&#160;200</td>
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<p>number of iterations to solve nBody problem </p>
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<a id="a1d730e4d47eb4add97e86a332c42006d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1d730e4d47eb4add97e86a332c42006d">&#9670;&nbsp;</a></span>MASS_MAX</h2>
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<td class="memname">#define MASS_MAX&#160;&#160;&#160;10e10f</td>
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<p>maximum of mass value for a particle </p>
</div>
</div>
<a id="a8b5173357adb02a86c027316e0acdfa0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8b5173357adb02a86c027316e0acdfa0">&#9670;&nbsp;</a></span>MAX_THREADS</h2>
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<td class="memname">#define MAX_THREADS&#160;&#160;&#160;1024</td>
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<a id="a75f5bceb8d0490f77f52370ffd8194f6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a75f5bceb8d0490f77f52370ffd8194f6">&#9670;&nbsp;</a></span>NB_PARTICLES</h2>
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<td class="memname">#define NB_PARTICLES&#160;&#160;&#160;4096</td>
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<p>number of particles for the project </p>
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<a id="a4806239b7f0dbc96aedf9adb9cb1e444"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4806239b7f0dbc96aedf9adb9cb1e444">&#9670;&nbsp;</a></span>OCCUPATION_PERC</h2>
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<td class="memname">#define OCCUPATION_PERC&#160;&#160;&#160;0.5f</td>
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<p>percentage of occupation to avoid particle go easily outside boundaries </p>
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<a id="a8b43bafee90b30676faae508c21cb8d7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8b43bafee90b30676faae508c21cb8d7">&#9670;&nbsp;</a></span>PRINT</h2>
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<td class="memname">#define PRINT</td>
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<p>Different includes to have all the c++ functions/library needed.&lt; input/output stream objects &lt; input/output stream class to operate on files &lt; string library manipulation &lt; C standard general utilities library &lt; integer types &lt; introduces random number generation facilities &lt; different maths functions Different defines to have constants for the overall project.if it is defined, print value in terminal and csv file </p>
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<a id="ac179eef68bcc694aa0ef8dd1eb09950b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac179eef68bcc694aa0ef8dd1eb09950b">&#9670;&nbsp;</a></span>SHIFT</h2>
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<td class="memname">#define SHIFT&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a4ad5358b722276fb6ec503ebc2b0d011">SIDE</a> / 3.0f</td>
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<p>Shift value to unbalanced uniformity of particles creation </p>
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<a id="a4ad5358b722276fb6ec503ebc2b0d011"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4ad5358b722276fb6ec503ebc2b0d011">&#9670;&nbsp;</a></span>SIDE</h2>
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<td class="memname">#define SIDE&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a75f5bceb8d0490f77f52370ffd8194f6">NB_PARTICLES</a></td>
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<p>side of the area considered for the project </p>
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<a id="a27d553e6f2bf4078cd5b995b7691005e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a27d553e6f2bf4078cd5b995b7691005e">&#9670;&nbsp;</a></span>SIDE_2f</h2>
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<td class="memname">#define SIDE_2f&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a4ad5358b722276fb6ec503ebc2b0d011">SIDE</a> / 2.0f</td>
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<p>1/2 side of the area considered for the project </p>
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<a id="acda55cb9baa03666373658b86ad3527b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acda55cb9baa03666373658b86ad3527b">&#9670;&nbsp;</a></span>SIDE_4f</h2>
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<td class="memname">#define SIDE_4f&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a4ad5358b722276fb6ec503ebc2b0d011">SIDE</a> / 4.0f</td>
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<p>1/4 side of the area considered for the project </p>
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