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Q & A ... °Ô½ÃÆÇ  (Optimization)


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exception °ü·Ã ¹®ÀÇ
ÀÛ¼ºÀÚ
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ÀÛ¼ºÀÏ
2012-05-16
Á¶È¸¼ö 1542 È¸
÷ºÎÆÄÀÏ Ã·ºÎµÈ ÆÄÀϾøÀ½.
´ÙÀ½°ú °°Àº ¼Ò½ºÄڵ带 ½ÇÇàÇÒ¶§ cplex.solve() ÇÔ¼ö¸¦ ½ÇÇàÇϸé(debugging ½Ã)
´ÙÀ½°ú °°Àº ¿¡·¯ ¸Þ¼¼Áö°¡ ¶å´Ï´Ù..)(ÂüÁ¶·Î Cplex´Â ¸ÞÀÎÇÔ¼ö°¡ ¾Æ´Ñ ÇÔ¼ö¿¡¼­ call ÇÏ¿© »ç¿ë]


MyTest.exeÀÇ 0x7c7e2afb¿¡ ù° ¿¹¿Ü°¡ ÀÖ½À´Ï´Ù. Microsoft C++ ¿¹¿Ü: IloCplex::Exception(¸Þ¸ð¸® À§Ä¡ 0x3815eca0


[¼Ò½ºÄÚµå]

#define TN 3 ///# of vehicle types...
#define iteration4 100
//#include

#include

ILOSTLBEGIN
typedef IloArray IloNumVarArray2;

double ext_knapsack( double a[], double cc[], int s[], int xx[], int n, double capa)
{ int i;double minval = 0.0;
IloEnv env;
try {
IloNumVarArray x(env, n + 1, 0, 1, ILOINT);
IloModel model(env);
IloExpr v(env);
for(i = 1 ; i <= n ; i++)
{
v+= a[s[i]] * x[i];
}
model.add(v <= capa); ////////1st constraint add
v.end();
IloExpr obj(env);
for(i = 1; i <= n; i++)
obj += cc[s[i]] * x[i];
model.add(IloMinimize(env, obj));
obj.end();
IloCplex cplex(model);
cplex.exportModel("steel.lp");
// IloCplex cplex(env);
// cplex.extract(model);
cplex.solve();

IloNum tolerance = cplex.getParam(IloCplex::EpInt);
for(i = 1; i <= n; i++)
{
if( cplex.getValue(x[i]) >= 1 - tolerance)
{
minval = minval + cc[s[i]];
xx[s[i]] = 1;
}
else
xx[s[i]] = 0;
}
}///end try
catch(IloException& e) { }
env.end();
return(minval);
}

°ü·Ã±Û º¸±â
"exception °ü·Ã ¹®ÀÇ"¿Í(°ú) °ü·ÃµÈ ±ÛÀÌ  2°Ç ÀÖ½À´Ï´Ù.
exception °ü·Ã ¹®ÀÇ Á¤ÀçÇå 2012-05-16
¼Ò½º ½ÇÇà ¿¹ À̺¸Çå 2012-05-22
[RE]exception °ü·Ã ¹®ÀÇ À̺¸Çå 2012-05-22