make_checkpoint.h

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-

//-----------------------------------------------------------------------------
// make_checkpoint.h
// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2000
/*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Contact: todos@geneura.ugr.es, http://geneura.ugr.es
             Marc.Schoenauer@polytechnique.fr
             mkeijzer@dhi.dk
 */
//-----------------------------------------------------------------------------

#ifndef _make_checkpoint_h
#define _make_checkpoint_h

#include <eoScalarFitness.h>
#include <utils/selectors.h> // for minimizing_fitness()
#include <EO.h>
#include <eoEvalFuncCounter.h>
#include <utils/checkpointing>

// at the moment, in utils/make_help.cpp
// this should become some eoUtils.cpp with corresponding eoUtils.h
bool testDirRes(std::string _dirName, bool _erase);


template <class EOT>
eoCheckPoint<EOT>& do_make_checkpoint(eoParser& _parser, eoState& _state, eoEvalFuncCounter<EOT>& _eval, eoContinue<EOT>& _continue)
{
  // first, create a checkpoint from the eoContinue
  eoCheckPoint<EOT> *checkpoint = new eoCheckPoint<EOT>(_continue);
  _state.storeFunctor(checkpoint);

  // Counters
  // is nb Eval to be used as counter?
  eoValueParam<bool>& useEvalParam = _parser.createParam(true, "useEval", "Use nb of eval. as counter (vs nb of gen.)", '\0', "Output");
  eoValueParam<bool>& useTimeParam = _parser.createParam(true, "useTime", "Display time (s) every generation", '\0', "Output");

  // if we want the time, we need an eoTimeCounter
  eoTimeCounter * tCounter = NULL;

  // Create anyway a generation-counter
  // Recent change (03/2002): it is now an eoIncrementorParam, both
  // a parameter AND updater so you can store it into the eoState
  eoIncrementorParam<unsigned> *generationCounter = new eoIncrementorParam<unsigned>("Gen.");
  // store it in the state
  _state.storeFunctor(generationCounter);
  // And add it to the checkpoint,
  checkpoint->add(*generationCounter);

    // dir for DISK output
    eoValueParam<std::string>& dirNameParam =  _parser.createParam(std::string("Res"), "resDir", "Directory to store DISK outputs", '\0', "Output - Disk");
    // shoudl we empty it if exists
    eoValueParam<bool>& eraseParam = _parser.createParam(true, "eraseDir", "erase files in dirName if any", '\0', "Output - Disk");
    bool dirOK = false;            // not tested yet

    // now some statistics on the population:

    // Best fitness in population
    //---------------------------
    eoValueParam<bool>& printBestParam = _parser.createParam(true, "printBestStat", "Print Best/avg/stdev every gen.", '\0', "Output");
    eoValueParam<bool>& plotBestParam = _parser.createParam(false, "plotBestStat", "Plot Best/avg Stat", '\0', "Output - Graphical");
    eoValueParam<bool>& fileBestParam = _parser.createParam(false, "fileBestStat", "Output bes/avg/std to file", '\0', "Output - Disk");

    eoBestFitnessStat<EOT> *bestStat = NULL;
    if ( printBestParam.value() || plotBestParam.value() || fileBestParam.value() )
      // we need the bestStat for at least one of the 3 above
      {
        bestStat = new eoBestFitnessStat<EOT>;
        // store it
        _state.storeFunctor(bestStat);
        // add it to the checkpoint
        checkpoint->add(*bestStat);
      }

    // Average fitness alone
    //----------------------
    eoAverageStat<EOT> *averageStat = NULL; // do we need averageStat?
    if ( plotBestParam.value() ) // we need it for gnuplot output
      {
        averageStat = new eoAverageStat<EOT>;
        // store it
        _state.storeFunctor(averageStat);
        // add it to the checkpoint
        checkpoint->add(*averageStat);
      }

    // Second moment stats: average and stdev
    //---------------------------------------
    eoSecondMomentStats<EOT> *secondStat = NULL;
    if ( printBestParam.value() ) // we need it for sreen output
      {
        secondStat = new eoSecondMomentStats<EOT>;
        // store it
        _state.storeFunctor(secondStat);
        // add it to the checkpoint
        checkpoint->add(*secondStat);
      }


    // Dump of the whole population
    //-----------------------------
    eoSortedPopStat<EOT> *popStat = NULL;
    eoValueParam<bool>& printPopParam = _parser.createParam(false, "printPop", "Print sorted pop. every gen.", '\0', "Output");
    if ( printPopParam.value() ) // we do want pop dump
      {
          popStat = new eoSortedPopStat<EOT>;
        // store it
        _state.storeFunctor(popStat);
        // add it to the checkpoint
        checkpoint->add(*popStat);
      }


    // do we wnat some histogram of fitnesses snpashots?
    eoValueParam<bool> plotHistogramParam = _parser.createParam(false, "plotHisto", "Plot histogram of fitnesses", '\0', "Output - Graphical");

    // The monitors
    // do we want an eoStdoutMonitor?
    bool needStdoutMonitor = printBestParam.value()
        || printPopParam.value() ;

    // The Stdout monitor will print parameters to the screen ...
    if ( needStdoutMonitor )
      {
        eoStdoutMonitor *monitor = new eoStdoutMonitor(false);
        _state.storeFunctor(monitor);

        // when called by the checkpoint (i.e. at every generation)
        checkpoint->add(*monitor);

        // the monitor will output a series of parameters: add them
        monitor->add(*generationCounter);
        if (useEvalParam.value()) // we want nb of evaluations
              monitor->add(_eval);
        if (useTimeParam.value()) // we want time
          {
            tCounter = new eoTimeCounter;
            _state.storeFunctor(tCounter);
            checkpoint->add(*tCounter);
            monitor->add(*tCounter);
          }
        if (printBestParam.value())
            {
                monitor->add(*bestStat);
                monitor->add(*secondStat);
            }
        if ( printPopParam.value())
          monitor->add(*popStat);
      }

    // first handle the dir test - if we need at least one file
    if ( ( fileBestParam.value() || plotBestParam.value() ||
           plotHistogramParam.value() )
         && !dirOK )               // just in case we add something before
      dirOK = testDirRes(dirNameParam.value(), eraseParam.value()); // TRUE

    if (fileBestParam.value())    // A file monitor for best & secondMoment
      {
#ifdef _MSVC
        std::string stmp = dirNameParam.value() + "\best.xg";
#else
        std::string stmp = dirNameParam.value() + "/best.xg";
#endif
        eoFileMonitor *fileMonitor = new eoFileMonitor(stmp);
        // save and give to checkpoint
        _state.storeFunctor(fileMonitor);
        checkpoint->add(*fileMonitor);
        // and feed with some statistics
        fileMonitor->add(*generationCounter);
        fileMonitor->add(_eval);
        if (tCounter)              // we want the time as well
          {
            //      std::cout << "On met timecounter\n";
            fileMonitor->add(*tCounter);
          }
        fileMonitor->add(*bestStat);
        fileMonitor->add(*secondStat);
      }

    if (plotBestParam.value())    // an eoGnuplot1DMonitor for best & average
      {
        std::string stmp = dirNameParam.value() + "/gnu_best.xg";
        eoGnuplot1DMonitor *gnuMonitor = new eoGnuplot1DMonitor(stmp,minimizing_fitness<EOT>());
        // save and give to checkpoint
        _state.storeFunctor(gnuMonitor);
        checkpoint->add(*gnuMonitor);
        // and feed with some statistics
        if (useEvalParam.value())  // do we want eval as X coordinate
          gnuMonitor->add(_eval);
        else if (tCounter)         // or time?
          gnuMonitor->add(*tCounter);
        else                       // default: generation
          gnuMonitor->add(*generationCounter);
        gnuMonitor->add(*bestStat);
        gnuMonitor->add(*averageStat);
      }

    // historgram?
    if (plotHistogramParam.value()) // want to see how the fitness is spread?
      {
        eoScalarFitnessStat<EOT> *fitStat = new eoScalarFitnessStat<EOT>;
        _state.storeFunctor(fitStat);
        checkpoint->add(*fitStat);
        // a gnuplot-based monitor for snapshots: needs a dir name
        eoGnuplot1DSnapshot *fitSnapshot = new eoGnuplot1DSnapshot(dirNameParam.value());
        _state.storeFunctor(fitSnapshot);
        // add any stat that is a std::vector<double> to it
        fitSnapshot->add(*fitStat);
        // and of course add it to the checkpoint
        checkpoint->add(*fitSnapshot);
      }

    // State savers

    // feed the state to state savers
    // save state every N  generation
    eoValueParam<unsigned>& saveFrequencyParam = _parser.createParam(unsigned(0), "saveFrequency", "Save every F generation (0 = only final state, absent = never)", '\0', "Persistence" );

    if (_parser.isItThere(saveFrequencyParam))
    {
      // first make sure dirName is OK
      if (! dirOK )
        dirOK = testDirRes(dirNameParam.value(), eraseParam.value()); // TRUE

      unsigned freq = (saveFrequencyParam.value()>0 ? saveFrequencyParam.value() : UINT_MAX );
#ifdef _MSVC
      std::string stmp = dirNameParam.value() + "\generations";
#else
      std::string stmp = dirNameParam.value() + "/generations";
#endif
      eoCountedStateSaver *stateSaver1 = new eoCountedStateSaver(freq, _state, stmp);
      _state.storeFunctor(stateSaver1);
    checkpoint->add(*stateSaver1);
    }

    // save state every T seconds
    eoValueParam<unsigned>& saveTimeIntervalParam = _parser.createParam(unsigned(0), "saveTimeInterval", "Save every T seconds (0 or absent = never)", '\0',"Persistence" );
    if (_parser.isItThere(saveTimeIntervalParam) && saveTimeIntervalParam.value()>0)
    {
      // first make sure dirName is OK
      if (! dirOK )
        dirOK = testDirRes(dirNameParam.value(), eraseParam.value()); // TRUE

#ifdef _MSVC
      std::string stmp = dirNameParam.value() + "\time";
#else
      std::string stmp = dirNameParam.value() + "/time";
#endif
      eoTimedStateSaver *stateSaver2 = new eoTimedStateSaver(saveTimeIntervalParam.value(), _state, stmp);
      _state.storeFunctor(stateSaver2);
      checkpoint->add(*stateSaver2);
    }

    // and that's it for the (control and) output
    return *checkpoint;
}

#endif

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