1.1 --- a/src/work/athos/lp/lp_test_cplex.cc Sun Apr 17 18:57:22 2005 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,185 +0,0 @@
1.4 -#include"lp_solver_skeleton.h"
1.5 -#include"lp_cplex.h"
1.6 -#include<lemon/list_graph.h>
1.7 -
1.8 -using namespace lemon;
1.9 -
1.10 -void lpTest(LpSolverBase & lp)
1.11 -{
1.12 - typedef LpSolverBase LP;
1.13 -
1.14 - std::vector<LP::Col> x;
1.15 - for(int i=0;i<10;i++) x.push_back(lp.addCol());
1.16 -
1.17 - std::vector<LP::Col> y(10);
1.18 - lp.addColSet(y);
1.19 -
1.20 - std::map<int,LP::Col> z;
1.21 -
1.22 - z.insert(std::make_pair(12,INVALID));
1.23 - z.insert(std::make_pair(2,INVALID));
1.24 - z.insert(std::make_pair(7,INVALID));
1.25 - z.insert(std::make_pair(5,INVALID));
1.26 -
1.27 - lp.addColSet(z);
1.28 -
1.29 -
1.30 - LP::Expr e,f,g;
1.31 - LP::Col p1,p2,p3,p4,p5;
1.32 - LP::Constr c;
1.33 -
1.34 - e[p1]=2;
1.35 - e.constComp()=12;
1.36 - e[p1]+=2;
1.37 - e.constComp()+=12;
1.38 - e[p1]-=2;
1.39 - e.constComp()-=12;
1.40 -
1.41 - e=2;
1.42 - e=2.2;
1.43 - e=p1;
1.44 - e=f;
1.45 -
1.46 - e+=2;
1.47 - e+=2.2;
1.48 - e+=p1;
1.49 - e+=f;
1.50 -
1.51 - e-=2;
1.52 - e-=2.2;
1.53 - e-=p1;
1.54 - e-=f;
1.55 -
1.56 - e*=2;
1.57 - e*=2.2;
1.58 - e/=2;
1.59 - e/=2.2;
1.60 -
1.61 - e=((p1+p2)+(p1-p2)+(p1+12)+(12+p1)+(p1-12)+(12-p1)+
1.62 - (f+12)+(12+f)+(p1+f)+(f+p1)+(f+g)+
1.63 - (f-12)+(12-f)+(p1-f)+(f-p1)+(f-g)+
1.64 - 2.2*f+f*2.2+f/2.2+
1.65 - 2*f+f*2+f/2+
1.66 - 2.2*p1+p1*2.2+p1/2.2+
1.67 - 2*p1+p1*2+p1/2
1.68 - );
1.69 -
1.70 -
1.71 - c = (e <= f );
1.72 - c = (e <= 2.2);
1.73 - c = (e <= 2 );
1.74 - c = (e <= p1 );
1.75 - c = (2.2<= f );
1.76 - c = (2 <= f );
1.77 - c = (p1 <= f );
1.78 - c = (p1 <= p2 );
1.79 - c = (p1 <= 2.2);
1.80 - c = (p1 <= 2 );
1.81 - c = (2.2<= p2 );
1.82 - c = (2 <= p2 );
1.83 -
1.84 - c = (e >= f );
1.85 - c = (e >= 2.2);
1.86 - c = (e >= 2 );
1.87 - c = (e >= p1 );
1.88 - c = (2.2>= f );
1.89 - c = (2 >= f );
1.90 - c = (p1 >= f );
1.91 - c = (p1 >= p2 );
1.92 - c = (p1 >= 2.2);
1.93 - c = (p1 >= 2 );
1.94 - c = (2.2>= p2 );
1.95 - c = (2 >= p2 );
1.96 -
1.97 - c = (e == f );
1.98 - c = (e == 2.2);
1.99 - c = (e == 2 );
1.100 - c = (e == p1 );
1.101 - c = (2.2== f );
1.102 - c = (2 == f );
1.103 - c = (p1 == f );
1.104 - //c = (p1 == p2 );
1.105 - c = (p1 == 2.2);
1.106 - c = (p1 == 2 );
1.107 - c = (2.2== p2 );
1.108 - c = (2 == p2 );
1.109 -
1.110 - c = (2 <= e <= 3);
1.111 - c = (2 <= p1<= 3);
1.112 -
1.113 - c = (2 >= e >= 3);
1.114 - c = (2 >= p1>= 3);
1.115 -
1.116 - e[x[3]]=2;
1.117 - e[x[3]]=4;
1.118 - e[x[3]]=1;
1.119 - e.constComp()=12;
1.120 -
1.121 - lp.addRow(LP::INF,e,23);
1.122 - lp.addRow(LP::INF,3.0*(p1+p2)-p3,23);
1.123 - lp.addRow(LP::INF,3.0*(x[1]+x[2]/2)-x[3],23);
1.124 - lp.addRow(LP::INF,3.0*(p1+p2*2-5*p3+12-p4/3)+2*p4-4,23);
1.125 - lp.addRow(LP::INF,3.0*(x[1]+x[2]*2-5*x[3]+12-x[4]/3)+2*x[4]-4,23);
1.126 -
1.127 - lp.addRow(x[1]+x[3]<=x[5]-3);
1.128 - lp.addRow(-7<=x[1]+x[3]-12<=3);
1.129 - //lp.addRow(x[1]<=x[5]);
1.130 -
1.131 -}
1.132 -
1.133 -
1.134 -template<class G,class C>
1.135 -double maxFlow(const G &g,const C &cap,typename G::Node s,typename G::Node t)
1.136 -{
1.137 - LpGlpk lp;
1.138 -
1.139 - typedef G Graph;
1.140 - typedef typename G::Node Node;
1.141 - typedef typename G::NodeIt NodeIt;
1.142 - typedef typename G::Edge Edge;
1.143 - typedef typename G::EdgeIt EdgeIt;
1.144 - typedef typename G::OutEdgeIt OutEdgeIt;
1.145 - typedef typename G::InEdgeIt InEdgeIt;
1.146 -
1.147 - typename G::EdgeMap<LpGlpk::Col> x(g);
1.148 - lp.addColSet(x);
1.149 - //for(EdgeIt e(g);e!=INVALID;++e) x[e]=lp.addCol();
1.150 -
1.151 - for(EdgeIt e(g);e!=INVALID;++e) {
1.152 - lp.setColUpperBound(x[e],cap[e]);
1.153 - lp.setColLowerBound(x[e],0);
1.154 - }
1.155 -
1.156 - for(NodeIt n(g);n!=INVALID;++n) if(n!=s&&n!=t) {
1.157 - LpGlpk::Expr ex;
1.158 - for(InEdgeIt e(g,n);e!=INVALID;++e) ex+=x[e];
1.159 - for(OutEdgeIt e(g,n);e!=INVALID;++e) ex-=x[e];
1.160 - lp.addRow(0,ex,0);
1.161 - }
1.162 - {
1.163 - LpGlpk::Expr ex;
1.164 - for(InEdgeIt e(g,t);e!=INVALID;++e) ex+=x[e];
1.165 - for(OutEdgeIt e(g,t);e!=INVALID;++e) ex-=x[e];
1.166 - lp.setObj(ex);
1.167 - }
1.168 -
1.169 - lp.solve();
1.170 -
1.171 - return 0;
1.172 -}
1.173 -
1.174 -int main()
1.175 -{
1.176 - LpSolverSkeleton lp_skel;
1.177 - LpGlpk lp_glpk;
1.178 - LpCplex lp_cplex;
1.179 -
1.180 - lpTest(lp_skel);
1.181 - lpTest(lp_cplex);
1.182 -
1.183 - ListGraph g;
1.184 - ListGraph::EdgeMap<double> cap(g);
1.185 -
1.186 - maxFlow(g,cap,ListGraph::NodeIt(g),ListGraph::NodeIt(g));
1.187 -
1.188 -}