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<title>PHPC - nBody project: /media/lmunier/Data/EPFL/Master/2eme_annee/Semestre_2/Parallel_and_High_Performance_Computing/phpc_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;vector&gt;</code><br />
<code>#include &lt;math.h&gt;</code><br />
<code>#include &lt;chrono&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:ae4abc233898f783a9cb9b8aea5ae5e37"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="constants_8hpp.html#ae4abc233898f783a9cb9b8aea5ae5e37">NB_DIM</a>&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a3deeed386c13e0d2526898f3cf3db3cf">DIM_3</a></td></tr>
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<tr class="memitem:a4806239b7f0dbc96aedf9adb9cb1e444"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="constants_8hpp.html#a4806239b7f0dbc96aedf9adb9cb1e444">OCCUPATION_PERC</a>&#160;&#160;&#160;0.5f</td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:af2b8102aeac8f02ab62ac42828289569"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569">property</a> { <br />
&#160;&#160;<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569a91743bc3932693c4b8a6ca984e8a8437">POS</a>,
<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569a52747a70f1917d227fb19ded90da348d">VEL</a>,
<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569a972dbcdf74cff71e20bdcfb53be9c391">LOAD</a>,
<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569a6c8e5f290be4be86fd5e7048654b4a50">DIM</a>,
<br />
&#160;&#160;<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569a2159ffbd3a68037511ab5ab4dd35ace7">CENTER</a>,
<a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569aef9ad485b29b65c89dd94b1fb31ad262">MASS_POS</a>
<br />
}</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="a17e1cd37c814dbe8b5e962b7fd2cdaec"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a17e1cd37c814dbe8b5e962b7fd2cdaec">&#9670;&nbsp;</a></span>BH_THETA</h2>
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<td class="memname">#define BH_THETA&#160;&#160;&#160;1.0f</td>
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<p>Barnes-Hut threshold to consider particles as a unique one </p>
</div>
</div>
<a id="a5400b1f2028d38732e4377be4f32b255"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5400b1f2028d38732e4377be4f32b255">&#9670;&nbsp;</a></span>DELTA_T</h2>
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<tr>
<td class="memname">#define DELTA_T&#160;&#160;&#160;0.01f</td>
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<p>duration of each update timestep </p>
</div>
</div>
<a id="a10266c76d61a61f598560381580e0113"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a10266c76d61a61f598560381580e0113">&#9670;&nbsp;</a></span>DIM_2</h2>
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<td class="memname">#define DIM_2&#160;&#160;&#160;2</td>
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<p>number of dimension in 2D </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>
</div>
</div>
<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>
<div class="memitem">
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<td class="memname">#define G&#160;&#160;&#160;6.67408e-11f</td>
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<p>Different defines to have constants for the overall project.gravitational general constant </p>
</div>
</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>
</div>
</div>
<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>
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<a id="ae4abc233898f783a9cb9b8aea5ae5e37"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae4abc233898f783a9cb9b8aea5ae5e37">&#9670;&nbsp;</a></span>NB_DIM</h2>
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<td class="memname">#define NB_DIM&#160;&#160;&#160;<a class="el" href="constants_8hpp.html#a3deeed386c13e0d2526898f3cf3db3cf">DIM_3</a></td>
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<p>number of dimension chosen for the project </p>
</div>
</div>
<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>
</div>
</div>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="af2b8102aeac8f02ab62ac42828289569"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af2b8102aeac8f02ab62ac42828289569">&#9670;&nbsp;</a></span>property</h2>
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<td class="memname">enum <a class="el" href="constants_8hpp.html#af2b8102aeac8f02ab62ac42828289569">property</a></td>
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<p>of the particle </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569a91743bc3932693c4b8a6ca984e8a8437"></a>POS&#160;</td><td class="fielddoc"><p>enum value for position property </p>
</td></tr>
<tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569a52747a70f1917d227fb19ded90da348d"></a>VEL&#160;</td><td class="fielddoc"><p>enum value for velocity property </p>
</td></tr>
<tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569a972dbcdf74cff71e20bdcfb53be9c391"></a>LOAD&#160;</td><td class="fielddoc"><p>enum value for load property </p>
</td></tr>
<tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569a6c8e5f290be4be86fd5e7048654b4a50"></a>DIM&#160;</td><td class="fielddoc"><p>enum value for dimension of cell property </p>
</td></tr>
<tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569a2159ffbd3a68037511ab5ab4dd35ace7"></a>CENTER&#160;</td><td class="fielddoc"><p>enum value for center of cell property </p>
</td></tr>
<tr><td class="fieldname"><a id="af2b8102aeac8f02ab62ac42828289569aef9ad485b29b65c89dd94b1fb31ad262"></a>MASS_POS&#160;</td><td class="fielddoc"><p>enum value for center of mass position property </p>
</td></tr>
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