peoParaPopEval.h

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

// "peoParaPopEval.h"

// (c) OPAC Team, LIFL, August 2005

/* 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: paradiseo-help@lists.gforge.inria.fr
*/

#ifndef __peoParaPopEval_h
#define __peoParaPopEval_h

#include <queue>
#include <eoEvalFunc.h>

#include "core/messaging.h"
#include "core/peo_debug.h"
#include "peoAggEvalFunc.h"
#include "peoNoAggEvalFunc.h"



template< class EOT > class peoParaPopEval : public peoPopEval< EOT > {

public:

        using peoPopEval< EOT > :: requestResourceRequest;
        using peoPopEval< EOT > :: resume;
        using peoPopEval< EOT > :: stop;
        using peoPopEval< EOT > :: getOwner;
        
        peoParaPopEval( eoEvalFunc< EOT >& __eval_func );

        peoParaPopEval( const std :: vector< eoEvalFunc < EOT >* >& __funcs, peoAggEvalFunc< EOT >& __merge_eval );

        void operator()( eoPop< EOT >& __pop );

        void packData();
        
        void unpackData();

        void execute();
        
        void packResult();
        
        void unpackResult();
        
        void notifySendingData();

        void notifySendingAllResourceRequests();

private:


        const std :: vector< eoEvalFunc < EOT >* >& funcs;
        std :: vector< eoEvalFunc < EOT >* > one_func;
        
        peoAggEvalFunc< EOT >& merge_eval;
        peoNoAggEvalFunc< EOT > no_merge_eval;
        
        std :: queue< EOT* >tasks;
        
        std :: map< EOT*, std :: pair< unsigned, unsigned > > progression;
        
        unsigned num_func;
        
        EOT sol;
        
        EOT *ad_sol;
        
        unsigned total;
};


template< class EOT > peoParaPopEval< EOT > :: peoParaPopEval( eoEvalFunc< EOT >& __eval_func ) : 

                funcs( one_func ), merge_eval( no_merge_eval )
{

        one_func.push_back( &__eval_func );
}


template< class EOT > peoParaPopEval< EOT > :: peoParaPopEval( 

                                const std :: vector< eoEvalFunc< EOT >* >& __funcs,
                                peoAggEvalFunc< EOT >& __merge_eval 

                ) : funcs( __funcs ), merge_eval( __merge_eval )
{

}


template< class EOT > void peoParaPopEval< EOT >::operator()( eoPop< EOT >& __pop ) {

        for ( unsigned i = 0; i < __pop.size(); i++ ) {

                __pop[ i ].fitness( typename EOT :: Fitness() );

                progression[ &__pop[ i ] ].first = funcs.size() - 1;
                progression[ &__pop[ i ] ].second = funcs.size();
                
                for ( unsigned j = 0; j < funcs.size(); j++ ) {
                        /* Queuing the 'invalid' solution and its associated owner */
                        tasks.push( &__pop[ i ] );
                }
        }
        
        total = funcs.size() * __pop.size();
        requestResourceRequest( funcs.size() * __pop.size() );
        stop();
}


template< class EOT > void peoParaPopEval< EOT > :: packData() {

        //  printDebugMessage ("debut pakc data");
        pack( progression[ tasks.front() ].first-- );
        
        /* Packing the contents :-) of the solution */
        pack( *tasks.front() );
        
        /* Packing the addresses of both the solution and the owner */
        pack( tasks.front() );
        tasks.pop(  );
}


template< class EOT > void peoParaPopEval< EOT > :: unpackData() {

        unpack( num_func );
        /* Unpacking the solution */
        unpack( sol );
        /* Unpacking the @ of that one */
        unpack( ad_sol );
}


template< class EOT > void peoParaPopEval< EOT > :: execute() {

        /* Computing the fitness of the solution */
        funcs[ num_func ]->operator()( sol );
}


template< class EOT > void peoParaPopEval< EOT > :: packResult() {

        /* Packing the fitness of the solution */
        pack( sol.fitness() );
        /* Packing the @ of the individual */
        pack( ad_sol );
}


template< class EOT > void peoParaPopEval< EOT > :: unpackResult() {

        typename EOT :: Fitness fit;
        
        /* Unpacking the computed fitness */
        unpack( fit );
                
        /* Unpacking the @ of the associated individual */
        unpack( ad_sol );
        
        
        /* Associating the fitness the local solution */
        merge_eval( *ad_sol, fit );

        progression[ ad_sol ].second--;

        /* Notifying the container of the termination of the evaluation */
        if ( !progression[ ad_sol ].second ) {

                progression.erase( ad_sol );
        }
        
        total--;
        if ( !total ) {

                getOwner()->setActive();
                resume();
        }
}


template< class EOT > void peoParaPopEval< EOT > :: notifySendingData() {

}


template< class EOT > void peoParaPopEval< EOT > :: notifySendingAllResourceRequests() {

        getOwner()->setPassive();
}


#endif

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