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# /home/coin/svn-release/Alps-1.4.8/Alps/src/AlpsHelperFunctions.h

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    00001 /*===========================================================================*
    00002  * This file is part of the Abstract Library for Parallel Search (ALPS).     *
    00003  *                                                                           *
    00004  * ALPS is distributed under the Eclipse Public License as part of the       *
    00005  * COIN-OR repository (http://www.coin-or.org).                              *
    00006  *                                                                           *
    00007  * Authors:                                                                  *
    00008  *                                                                           *
    00009  *          Yan Xu, Lehigh University                                        *
    00010  *          Ted Ralphs, Lehigh University                                    *
    00011  *                                                                           *
    00012  * Conceptual Design:                                                        *
    00013  *                                                                           *
    00014  *          Yan Xu, Lehigh University                                        *
    00015  *          Ted Ralphs, Lehigh University                                    *
    00016  *          Laszlo Ladanyi, IBM T.J. Watson Research Center                  *
    00017  *          Matthew Saltzman, Clemson University                             *
    00018  *                                                                           *
    00019  *                                                                           *
    00020  * Copyright (C) 2001-2013, Lehigh University, Yan Xu, and Ted Ralphs.       *
    00021  *===========================================================================*/
    00022
    00023 #ifndef AlpsHelperFunctions_h_
    00024 #define AlpsHelperFunctions_h_
    00025
    00026 #if defined(NF_DEBGU)
    00027 #include <iostream>
    00028 #endif
    00029 #include <cmath>
    00030
    00031 #include "CoinTime.hpp"
    00032
    00033 #include "AlpsTreeNode.h"
    00034
    00035 //#############################################################################
    00036
    00038 class TotalWorkload : public std::unary_function<AlpsTreeNode*, void> {
    00039
    00040  private:
    00041     double totalLoad_;
    00042     double incVal_;
    00043     double rho_;
    00044
    00045  public:
    00046     TotalWorkload(const double incVal, const double rho)
    00047         :
    00048         totalLoad_(0.0),
    00049         incVal_(incVal),
    00050         rho_(rho)
    00051         {}
    00052
    00053     void operator()(AlpsTreeNode*& node) {
    00054         totalLoad_ += pow(fabs(incVal_ - node->getQuality()), rho_);
    00055     }
    00056
    00057     double result() const { return totalLoad_; }
    00058 };
    00059
    00060 //#############################################################################
    00062 struct DeletePtrObject
    00063 {
    00064     template<class T>
    00065     void operator()(const T* ptr) const
    00066         {
    00067             delete ptr;
    00068         }
    00069 };
    00070
    00071 //#############################################################################
    00073 inline void AlpsSleep(double sec)
    00074 {
    00075     double start = CoinCpuTime();
    00076     while ( (CoinCpuTime() - start) < sec) { };
    00077 }
    00078 #endif