127 lines
3 KiB
C++
127 lines
3 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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// "eoDistPopEvalFunc.h"
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// (c) OPAC Team, LIFL, 2002
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/* This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: cahon@lifl.fr
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*/
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#ifndef eoDistPopEvalFunc_h
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#define eoDistPopEvalFunc_h
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#include <eoPopEvalFunc.h>
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#include <paradisEO/comm/messages/to/eoEOSendMessTo.h>
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template <class EOT> class eoDistPopEvalFunc : public eoPopEvalFunc <EOT> {
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public :
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/**
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Constructor
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*/
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eoDistPopEvalFunc (eoListener <EOT> & _listen,
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string & _label,
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eoEvalFunc <EOT> & _eval
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) :
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listen (_listen),
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label (_label),
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eval (_eval) {
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}
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void operator () (eoPop <EOT> & _parents, eoPop <EOT> & _offspring) {
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int num_eval = 0 ; // How many distributed evaluators ?
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int old_size = _offspring.size () ;
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do {
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listen.update () ;
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for (int i = 0 ; i < listen.size () ; i ++) {
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if (listen [i].label () == label)
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num_eval ++ ;
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}
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if (num_eval == 0) {
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cout << "No [" << label << "] available ..." << endl ;
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cout << "Waiting for a few seconds ..." << endl ;
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sleep (2) ;
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}
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} while (num_eval == 0) ;
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// Partitioning ...
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int j = 0, l = 0 ;
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bool t [listen.size ()] ;
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for (int i = 0 ; i < listen.size () ; i ++)
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t [i] = false ;
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for (int i = 0 ; i < num_eval ; i ++) {
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eoPop <EOT> pop ;
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for (int k = 0 ; k < old_size / num_eval ; k ++)
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pop.push_back (_offspring [j ++]) ;
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if (i < old_size % num_eval)
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pop.push_back (_offspring [j ++]) ;
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// Next evaluator ...
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while (listen [l].label () != label) {
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l ++ ;
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}
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eoEOSendMessTo <EOT> mess (pop) ;
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mess (listen [l]) ;
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t [l ++] = true ;
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}
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// On standby of the returns
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_offspring.clear () ;
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// while (_offspring.size () != old_size) {
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// listen.wait () ;
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for (int i = 0 ; i < listen.size () ; i ++)
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if (t [i]) {
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listen [i].wait () ;
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//while (! listen [i].empty ()) {
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eoPop <EOT> & pop = listen [i].front () ;
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for (int m = 0 ; m < pop.size () ; m ++)
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_offspring.push_back (pop [m]) ;
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listen [i].pop () ;
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//}
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//}
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}
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}
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private :
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eoListener <EOT> & listen ;
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string label ; // String identifier of evaluators
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eoEvalFunc <EOT> & eval ;
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} ;
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#endif
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