static void Main(string[] args)
{
GurobiDrv g = new GurobiDrv();
try
{
var m = g.loadModel(@"D:\Development\AMPL\solvers-public\test\models\tsp.nl");
int nvars = m.getNumVars();
//CB cb = new CB();
//m.setCallback(cb);
GCB gcb = new GCB();
m.setCallback(gcb);
double obj = m.optimize();
Console.WriteLine("Solution with CPLEX={0}", m.getObj());
double[] sol = new double[nvars];
m.getSolution(0, nvars, sol);
m.writeSol();
// var map = m.getVarMap();
// foreach (var item in map)
// {
// if (sol[item.Value] != 0)
// Console.WriteLine("{0}: {1}", item.Key, sol[item.Value]);
// }
}
catch (Exception ex)
{
Console.WriteLine("exception caught!\r\n" + ex.Message);
}
}
static void DoStuff(AMPLModel m)
{
// Get the number of variables
int nvars = m.getNumVars();
GCB gcb = new GCB();
m.setCallback(gcb);
double obj = m.optimize();
var sol = m.getSolutionVector().Where(a => a != 0).ToList();
Console.WriteLine($"Status: {m.getStatus().ToString()}");
Console.WriteLine($"Solution of {m.GetType().Name}={m.getObj()}, nnz={sol.Count()}");
var map = m.getVarMapInverse();
Console.WriteLine($"First 10 non zeroes:");
for (int i = 0; i < Math.Min(sol.Count, 10); i++)
{
Console.WriteLine($"{map[i]}: {sol[i]}");
}
}