lpmethod_c ++。CPP
/ *版权所有2018，Gurobi 狗万app足彩Optimization，LLC * // *通过方法参数的不同值解决模型;显示哪个值提供最短的解决时间。* / #include“gurobi_c ++。h”使用命名空间std;int main（int argc，char * argv []）{if（argc <2）{cout <<“用法：lpmethod_c ++ filename”<<端口;返回1;}尝试{//读取型号grbenv ent = grbenv（）;grbmodel m = grbmodel（env，argv [1]）;//用不同的方法int bestmethod = -1解决模型;双倍besttime = m.get（grb_doubleparam_timelimit）;for（int i = 0; i <= 2; ++ i）{m.reset（）; m.set(GRB_IntParam_Method, i); m.optimize(); if (m.get(GRB_IntAttr_Status) == GRB_OPTIMAL) { bestTime = m.get(GRB_DoubleAttr_Runtime); bestMethod = i; // Reduce the TimeLimit parameter to save time // with other methods m.set(GRB_DoubleParam_TimeLimit, bestTime); } } // Report which method was fastest if (bestMethod == -1) { cout << "Unable to solve this model" << endl; } else { cout << "Solved in " << bestTime << " seconds with Method: " << bestMethod << endl; } } catch(GRBException e) { cout << "Error code = " << e.getErrorCode() << endl; cout << e.getMessage() << endl; } catch(...) { cout << "Exception during optimization" << endl; } return 0; }
