e7b97ea34f
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@924 331e1502-861f-0410-8da2-ba01fb791d7f
59 lines
2.5 KiB
C++
59 lines
2.5 KiB
C++
template <class EOT>
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peoMoeoPop<EOT>& do_make_pop(eoParser & _parser, eoState& _state, eoInit<EOT> & _init)
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{
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// random seed
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eoValueParam<uint32_t>& seedParam = _parser.createParam(uint32_t(0), "seed", "Random number seed", 'S');
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if (seedParam.value() == 0)
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seedParam.value() = time(0);
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eoValueParam<unsigned>& popSize = _parser.createParam(unsigned(20), "popSize", "Population Size", 'P', "Evolution Engine");
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// Either load or initialize
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// create an empty pop and let the state handle the memory
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peoMoeoPop<EOT>& pop = _state.takeOwnership(peoMoeoPop<EOT>());
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eoValueParam<std::string>& loadNameParam = _parser.createParam(std::string(""), "Load","A save file to restart from",'L', "Persistence" );
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eoValueParam<bool> & recomputeFitnessParam = _parser.createParam(false, "recomputeFitness", "Recompute the fitness after re-loading the pop.?", 'r', "Persistence" );
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if (loadNameParam.value() != "") // something to load
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{
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// create another state for reading
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eoState inState; // a state for loading - WITHOUT the parser
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// register the rng and the pop in the state, so they can be loaded,
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// and the present run will be the exact continuation of the saved run
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// eventually with different parameters
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inState.registerObject(pop);
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inState.registerObject(rng);
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inState.load(loadNameParam.value()); // load the pop and the rng
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// the fitness is read in the file:
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// do only evaluate the pop if the fitness has changed
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if (recomputeFitnessParam.value())
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{
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for (unsigned i=0; i<pop.size(); i++)
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pop[i].invalidate();
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}
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if (pop.size() < popSize.value())
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std::cerr << "WARNING, only " << pop.size() << " individuals read in file " << loadNameParam.value() << "\nThe remaining " << popSize.value() - pop.size() << " will be randomly drawn" << std::endl;
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if (pop.size() > popSize.value())
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{
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std::cerr << "WARNING, Load file contained too many individuals. Only the best will be retained" << std::endl;
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pop.resize(popSize.value());
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}
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}
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else // nothing loaded from a file
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{
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rng.reseed(seedParam.value());
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}
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if (pop.size() < popSize.value()) // missing some guys
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{
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// Init pop from the randomizer: need to use the append function
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pop.append(popSize.value(), _init);
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}
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// for future stateSave, register the algorithm into the state
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_state.registerObject(_parser);
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_state.registerObject(pop);
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_state.registerObject(rng);
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return pop;
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}
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