c3aec878e5
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@40 331e1502-861f-0410-8da2-ba01fb791d7f
198 lines
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198 lines
13 KiB
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<title>EO: t-eoCheckpointing.cpp Source File</title>
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<h1>t-eoCheckpointing.cpp</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">//-----------------------------------------------------------------------------</span>
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00002
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00003 <span class="comment">// to avoid long name warnings</span>
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00004 <span class="preprocessor">#ifdef _MSC_VER</span>
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00005 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(disable:4786)</span>
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00006 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
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00007 <span class="preprocessor"></span>
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00008 <span class="preprocessor">#include <stdexcept></span> <span class="comment">// runtime_error</span>
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00009
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00010 <span class="comment">//-----------------------------------------------------------------------------</span>
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00011 <span class="comment">// tt.cpp:</span>
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00012 <span class="comment">//</span>
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00013 <span class="comment">//-----------------------------------------------------------------------------</span>
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00014
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00015
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00016 <span class="comment">// general</span>
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00017 <span class="preprocessor">#include <utils/eoRNG.h></span> <span class="comment">// Random number generators</span>
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00018 <span class="preprocessor">#include <ga.h></span>
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00019 <span class="preprocessor">#include <utils/eoParser.h></span>
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00020 <span class="preprocessor">#include <utils/eoState.h></span>
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00021 <span class="preprocessor">#include <eoGenContinue.h></span>
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00022 <span class="comment">//-----------------------------------------------------------------------------</span>
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00023
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00024 <span class="comment">// include package checkpointing</span>
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00025 <span class="preprocessor">#include <utils/checkpointing></span>
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00026
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<a name="l00027"></a><a class="code" href="struct_dummy.html">00027</a> <span class="keyword">struct </span><a class="code" href="struct_dummy.html">Dummy</a> : <span class="keyword">public</span> <a class="code" href="class_e_o.html">EO</a><double>
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00028 {
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00029 <span class="keyword">typedef</span> <span class="keywordtype">double</span> Type;
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00030 };
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00031
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00032
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00033 <span class="keyword">struct </span>eoDummyPop : <span class="keyword">public</span> <a class="code" href="classeo_pop.html">eoPop</a><Dummy>
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00034 {
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00035 <span class="keyword">public</span> :
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00036 eoDummyPop(<span class="keywordtype">int</span> s = 2) { resize(s); }
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00037 };
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00038
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00039 <span class="comment">//-----------------------------------------------------------------------------</span>
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00040
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00041 <span class="keywordtype">int</span> the_main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)
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00042 { <span class="comment">// ok, we have a command line parser and a state</span>
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00043
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00044 <span class="keyword">typedef</span> <a class="code" href="classeo_bit.html">eoBit<float></a> Chrom;
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00045
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00046 <a class="code" href="classeo_parser.html">eoParser</a> parser(argc, argv);
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00047
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00048 <span class="comment">// Define Parameters</span>
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00049 <a class="code" href="classeo_value_param.html">eoValueParam<double></a> rate(0.01, <span class="stringliteral">"mutationRatePerBit"</span>, <span class="stringliteral">"Initial value for mutation rate per bit"</span>);
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00050 <a class="code" href="classeo_value_param.html">eoValueParam<double></a> factor(0.99, <span class="stringliteral">"mutationFactor"</span>, <span class="stringliteral">"Decrease factor for mutation rate"</span>);
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00051 <a class="code" href="classeo_value_param.html">eoValueParam<uint32_t></a> seed(time(0), <span class="stringliteral">"seed"</span>, <span class="stringliteral">"Random number seed"</span>);
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00052 <a class="code" href="classeo_value_param.html">eoValueParam<std::string></a> load_name(<span class="stringliteral">""</span>, <span class="stringliteral">"Load"</span>,<span class="stringliteral">"Load"</span>,<span class="charliteral">'L'</span>);
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00053 <a class="code" href="classeo_value_param.html">eoValueParam<std::string></a> save_name(<span class="stringliteral">""</span>, <span class="stringliteral">"Save"</span>,<span class="stringliteral">"Save"</span>,<span class="charliteral">'S'</span>);
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00054
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00055 <span class="comment">// Register them</span>
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00056 parser.processParam(rate, <span class="stringliteral">"Genetic Operators"</span>);
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00057 parser.processParam(factor, <span class="stringliteral">"Genetic Operators"</span>);
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00058 parser.processParam(load_name, <span class="stringliteral">"Persistence"</span>);
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00059 parser.processParam(save_name, <span class="stringliteral">"Persistence"</span>);
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00060 parser.processParam(seed, <span class="stringliteral">"Rng seeding"</span>);
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00061
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00062 <a class="code" href="classeo_state.html">eoState</a> state;
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00063 state.<a class="code" href="classeo_state.html#a2">registerObject</a>(parser);
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00064
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00065 <span class="keywordflow">if</span> (load_name.value() != <span class="stringliteral">""</span>)
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00066 { <span class="comment">// load the parser. This is only neccessary when the user wants to</span>
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00067 <span class="comment">// be able to change the parameters in the state file by hand.</span>
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00068 state.<a class="code" href="classeo_state.html#a5">load</a>(load_name.value()); <span class="comment">// load the parser</span>
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00069 }
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00070
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00071 <span class="comment">// Create the algorithm here</span>
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00072 <span class="keyword">typedef</span> <a class="code" href="struct_dummy.html">Dummy</a> <a class="code" href="classeo_parse_tree.html">EoType</a>;
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00073
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00074 eoDummyPop pop;
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00075
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00076 <a class="code" href="classeo_gen_continue.html">eoGenContinue<EoType></a> genTerm(5); <span class="comment">// run for 5 generations</span>
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00077
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00078 <a class="code" href="classeo_check_point.html">eoCheckPoint<EoType></a> checkpoint(genTerm);
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00079 <span class="comment">// The algorithm will now quit after five generations</span>
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00080
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00081 <span class="comment">// Create a counter parameter</span>
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00082 <a class="code" href="classeo_value_param.html">eoValueParam<unsigned></a> generationCounter(0, <span class="stringliteral">"Generation"</span>);
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00083
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00084 <span class="comment">// Create an incrementor (wich is an eoUpdater). Note that the</span>
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00085 <span class="comment">// Parameter's value is passed by reference, so every time the incrementer increments,</span>
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00086 <span class="comment">// the data in generationCounter will change.</span>
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00087 <a class="code" href="classeo_incrementor.html">eoIncrementor<unsigned></a> increment(generationCounter.value());
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00088
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00089 <span class="comment">// Add it to the checkpoint, this will result in the counter being incremented every generation</span>
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00090 checkpoint.add(increment);
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00091
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00092 <span class="comment">// The file monitor will print parameters to a comma seperated file</span>
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00093 <a class="code" href="classeo_file_monitor.html">eoFileMonitor</a> monitor(<span class="stringliteral">"monitor.csv"</span>);
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00094
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00095 <span class="comment">// the checkpoint mechanism can handle multiple monitors</span>
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00096 checkpoint.add(monitor);
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00097
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00098 <span class="comment">// the monitor can monitor parameters such as the generationCounter</span>
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00099 monitor.add(generationCounter);
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00100
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00101 <span class="comment">// Second moment stats: average and stdev</span>
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00102 <a class="code" href="classeo_second_moment_stats.html">eoSecondMomentStats<EoType></a> stats;
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00103
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00104 <span class="comment">// Add it to the checkpoint to get it called at the appropriate time</span>
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00105 checkpoint.add(stats);
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00106
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00107 <span class="comment">// Add it to the monitor to get it written to the file</span>
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00108 monitor.add(stats);
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00109
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00110 <span class="comment">// save state every third generation</span>
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00111 <a class="code" href="classeo_counted_state_saver.html">eoCountedStateSaver</a> stateSaver1(3, state, <span class="stringliteral">"generation"</span>);
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00112 <span class="comment">// save state every 2 seconds</span>
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00113 <a class="code" href="classeo_timed_state_saver.html">eoTimedStateSaver</a> stateSaver2(2, state, <span class="stringliteral">"time"</span>);
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00114
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00115 <span class="comment">// And add the two savers to the checkpoint</span>
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00116 checkpoint.add(stateSaver1);
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00117 checkpoint.add(stateSaver2);
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00118
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00119 <span class="comment">// Register the algorithm</span>
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00120 state.<a class="code" href="classeo_state.html#a2">registerObject</a>(rng);
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00121 state.<a class="code" href="classeo_state.html#a2">registerObject</a>(pop);
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00122
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00123 <span class="keywordflow">if</span> (parser.userNeedsHelp())
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00124 {
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00125 parser.printHelp(std::cout);
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00126 <span class="keywordflow">return</span> 0;
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00127 }
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00128
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00129 <span class="comment">// Either load or initialize</span>
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00130 <span class="keywordflow">if</span> (load_name.value() != <span class="stringliteral">""</span>)
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00131 {
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00132 state.<a class="code" href="classeo_state.html#a5">load</a>(load_name.value()); <span class="comment">// load the rest</span>
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00133 }
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00134 <span class="keywordflow">else</span>
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00135 {
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00136 <span class="comment">// else</span>
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00137
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00138 <span class="comment">// initialize rng and population</span>
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00139
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00140 rng.<a class="code" href="classeo_rng.html#a2">reseed</a>(seed.value());
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00141
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00142 pop.resize(2);
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00143
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00144 pop[0].fitness(1);
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00145 pop[1].fitness(2);
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00146 }
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00147
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00148 <span class="keywordflow">while</span>(checkpoint(pop))
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00149 {
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00150 pop[0].fitness(pop[0].fitness() + 1);
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00151
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00152 time_t now = time(0);
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00153
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00154 <span class="keywordflow">while</span> (time(0) == now) {} <span class="comment">// wait a second to test timed saver</span>
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00155
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00156 std::cout << <span class="stringliteral">"gen "</span> << generationCounter.value() << std::endl;
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00157 }
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00158
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00159 <span class="comment">// run the algorithm</span>
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00160
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00161 <span class="comment">// Save when needed</span>
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00162 <span class="keywordflow">if</span> (save_name.value() != <span class="stringliteral">""</span>)
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00163 {
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00164 std::string file_name = save_name.value();
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00165 save_name.value() = <span class="stringliteral">""</span>; <span class="comment">// so that it does not appear in the parser section of the state file</span>
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00166 state.<a class="code" href="classeo_state.html#a7">save</a>(file_name);
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00167 }
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00168
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00169 <span class="keywordflow">return</span> 1;
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00170 }
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00171
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00172 <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)
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00173 {
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00174 <span class="keywordflow">try</span>
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00175 {
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00176 the_main(argc, argv);
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00177 }
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00178 <span class="keywordflow">catch</span>(std::exception& e)
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00179 {
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00180 std::cout << <span class="stringliteral">"Exception: "</span> << e.what() << std::endl;
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00181 }
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00182
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00183 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:43 2006 for EO by
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<a href="http://www.doxygen.org/index.html">
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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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