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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@40 331e1502-861f-0410-8da2-ba01fb791d7f
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<title>EO: make_pop.h Source File</title>
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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000025.html">do</a></div>
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<h1>make_pop.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-</span>
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00002
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00003 <span class="comment">//-----------------------------------------------------------------------------</span>
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00004 <span class="comment">// make_pop.h</span>
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00005 <span class="comment">// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2001</span>
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00006 <span class="comment">/*</span>
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00007 <span class="comment"> This library is free software; you can redistribute it and/or</span>
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00008 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
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00009 <span class="comment"> License as published by the Free Software Foundation; either</span>
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00010 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
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00011 <span class="comment"></span>
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00012 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
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00013 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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00014 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
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00015 <span class="comment"> Lesser General Public License for more details.</span>
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00016 <span class="comment"></span>
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00017 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
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00018 <span class="comment"> License along with this library; if not, write to the Free Software</span>
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00019 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
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00020 <span class="comment"></span>
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00021 <span class="comment"> Contact: todos@geneura.ugr.es, http://geneura.ugr.es</span>
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00022 <span class="comment"> Marc.Schoenauer@polytechnique.fr</span>
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00023 <span class="comment"> mkeijzer@dhi.dk</span>
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00024 <span class="comment"> */</span>
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00025 <span class="comment">//-----------------------------------------------------------------------------</span>
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00026
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00027 <span class="preprocessor">#ifndef _make_pop_h</span>
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00028 <span class="preprocessor"></span><span class="preprocessor">#define _make_pop_h</span>
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00029 <span class="preprocessor"></span>
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00030 <span class="preprocessor">#include <ctime></span> <span class="comment">// for time(0) for random seeding</span>
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00031 <span class="preprocessor">#include <eoPop.h></span>
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00032 <span class="preprocessor">#include <eoInit.h></span>
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00033 <span class="preprocessor">#include <utils/eoRNG.h></span>
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00034 <span class="preprocessor">#include <utils/eoParser.h></span>
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00035 <span class="preprocessor">#include <utils/eoState.h></span>
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00036
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00037
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00039
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00048 <span class="keyword">template</span> <<span class="keyword">class</span> EOT>
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00049 <a class="code" href="classeo_pop.html">eoPop<EOT></a>& do_make_pop(<a class="code" href="classeo_parser.html">eoParser</a> & _parser, <a class="code" href="classeo_state.html">eoState</a>& _state, <a class="code" href="classeo_init.html">eoInit<EOT></a> & _init)
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00050 {
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00051 <span class="comment">// random seed</span>
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00052 <a class="code" href="classeo_value_param.html">eoValueParam<uint32_t></a>& seedParam = _parser.<a class="code" href="classeo_parameter_loader.html#a3">createParam</a>(uint32_t(0), <span class="stringliteral">"seed"</span>, <span class="stringliteral">"Random number seed"</span>, <span class="charliteral">'S'</span>);
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00053 <span class="keywordflow">if</span> (seedParam.<a class="code" href="classeo_value_param.html#a2">value</a>() == 0)
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00054 seedParam.<a class="code" href="classeo_value_param.html#a2">value</a>() = time(0);
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00055 <a class="code" href="classeo_value_param.html">eoValueParam<unsigned></a>& popSize = _parser.<a class="code" href="classeo_parameter_loader.html#a3">createParam</a>(<span class="keywordtype">unsigned</span>(20), <span class="stringliteral">"popSize"</span>, <span class="stringliteral">"Population Size"</span>, <span class="charliteral">'P'</span>, <span class="stringliteral">"Evolution Engine"</span>);
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00056
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00057 <span class="comment">// Either load or initialize</span>
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00058 <span class="comment">// create an empty pop and let the state handle the memory</span>
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00059 <a class="code" href="classeo_pop.html">eoPop<EOT></a>& pop = _state.<a class="code" href="classeo_state.html#a3">takeOwnership</a>(<a class="code" href="classeo_pop.html">eoPop<EOT></a>());
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00060
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00061 <a class="code" href="classeo_value_param.html">eoValueParam<std::string></a>& loadNameParam = _parser.<a class="code" href="classeo_parameter_loader.html#a3">createParam</a>(std::string(<span class="stringliteral">""</span>), <span class="stringliteral">"Load"</span>,<span class="stringliteral">"A save file to restart from"</span>,<span class="charliteral">'L'</span>, <span class="stringliteral">"Persistence"</span> );
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00062 <a class="code" href="classeo_value_param.html">eoValueParam<bool></a> & recomputeFitnessParam = _parser.<a class="code" href="classeo_parameter_loader.html#a3">createParam</a>(<span class="keyword">false</span>, <span class="stringliteral">"recomputeFitness"</span>, <span class="stringliteral">"Recompute the fitness after re-loading the pop.?"</span>, <span class="charliteral">'r'</span>, <span class="stringliteral">"Persistence"</span> );
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00063
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00064 <span class="keywordflow">if</span> (loadNameParam.<a class="code" href="classeo_value_param.html#a2">value</a>() != <span class="stringliteral">""</span>) <span class="comment">// something to load</span>
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00065 {
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00066 <span class="comment">// create another state for reading</span>
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00067 <a class="code" href="classeo_state.html">eoState</a> inState; <span class="comment">// a state for loading - WITHOUT the parser</span>
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00068 <span class="comment">// register the rng and the pop in the state, so they can be loaded,</span>
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00069 <span class="comment">// and the present run will be the exact continuation of the saved run</span>
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00070 <span class="comment">// eventually with different parameters</span>
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00071 inState.<a class="code" href="classeo_state.html#a2">registerObject</a>(pop);
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00072 inState.<a class="code" href="classeo_state.html#a2">registerObject</a>(rng);
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00073 inState.<a class="code" href="classeo_state.html#a5">load</a>(loadNameParam.<a class="code" href="classeo_value_param.html#a2">value</a>()); <span class="comment">// load the pop and the rng</span>
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00074 <span class="comment">// the fitness is read in the file:</span>
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00075 <span class="comment">// do only evaluate the pop if the fitness has changed</span>
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00076 <span class="keywordflow">if</span> (recomputeFitnessParam.<a class="code" href="classeo_value_param.html#a2">value</a>())
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00077 {
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00078 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i=0; i<pop.size(); i++)
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00079 pop[i].<a class="code" href="classeo_pop.html#a19">invalidate</a>();
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00080 }
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00081 <span class="keywordflow">if</span> (pop.size() < popSize.<a class="code" href="classeo_value_param.html#a2">value</a>())
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00082 std::cerr << <span class="stringliteral">"WARNING, only "</span> << pop.size() << <span class="stringliteral">" individuals read in file "</span> << loadNameParam.<a class="code" href="classeo_value_param.html#a2">value</a>() << <span class="stringliteral">"\nThe remaining "</span> << popSize.<a class="code" href="classeo_value_param.html#a2">value</a>() - pop.size() << <span class="stringliteral">" will be randomly drawn"</span> << std::endl;
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00083 <span class="keywordflow">if</span> (pop.size() > popSize.<a class="code" href="classeo_value_param.html#a2">value</a>())
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00084 {
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00085 std::cerr << <span class="stringliteral">"WARNING, Load file contained too many individuals. Only the best will be retained"</span> << std::endl;
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00086 pop.resize(popSize.<a class="code" href="classeo_value_param.html#a2">value</a>());
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00087 }
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00088 }
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00089 <span class="keywordflow">else</span> <span class="comment">// nothing loaded from a file</span>
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00090 {
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00091 rng.<a class="code" href="classeo_rng.html#a2">reseed</a>(seedParam.<a class="code" href="classeo_value_param.html#a2">value</a>());
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00092 }
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00093
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00094 <span class="keywordflow">if</span> (pop.size() < popSize.<a class="code" href="classeo_value_param.html#a2">value</a>()) <span class="comment">// missing some guys</span>
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00095 {
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00096 <span class="comment">// Init pop from the randomizer: need to use the append function</span>
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00097 pop.<a class="code" href="classeo_pop.html#a2">append</a>(popSize.<a class="code" href="classeo_value_param.html#a2">value</a>(), _init);
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00098 }
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00099
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00100 <span class="comment">// for future stateSave, register the algorithm into the state</span>
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00101 _state.<a class="code" href="classeo_state.html#a2">registerObject</a>(_parser);
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00102 _state.<a class="code" href="classeo_state.html#a2">registerObject</a>(pop);
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00103 _state.<a class="code" href="classeo_state.html#a2">registerObject</a>(rng);
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00104
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00105 <span class="keywordflow">return</span> pop;
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00106 }
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00107
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00108 <span class="preprocessor">#endif</span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:41 2006 for EO by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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