/// <summary>
/// Builds an instance of the <see cref="AlgorithmTuner{TTargetAlorithm,TInstance,TResult}" /> class for tuning Gurobi.
/// </summary>
/// <param name="configuration">The <see cref="AlgorithmTunerConfiguration" /> to use.</param>
/// <param name="pathToTrainingInstanceFolder">The path to the folder containing training instances.</param>
/// <param name="pathToTestInstanceFolder">The path to test instance folder.</param>
/// <param name="gurobiConfigBuilder">The gurobi configuration builder.</param>
/// <returns>
/// The built instance.
/// </returns>
public static AlgorithmTuner <GurobiRunner, InstanceSeedFile, GurobiResult> BuildGurobiRunner(
AlgorithmTunerConfiguration configuration,
string pathToTrainingInstanceFolder,
string pathToTestInstanceFolder,
GurobiRunnerConfiguration.GurobiRunnerConfigBuilder gurobiConfigBuilder)
{
var gurobiConfig = gurobiConfigBuilder.Build(configuration.CpuTimeout);
var tuner = new AlgorithmTuner <GurobiRunner, InstanceSeedFile, GurobiResult>(
targetAlgorithmFactory: new GurobiRunnerFactory(gurobiConfig),
runEvaluator: new GurobiRunEvaluator(),
trainingInstances: GurobiUtils.CreateInstances(pathToTrainingInstanceFolder, gurobiConfig.NumberOfSeeds, gurobiConfig.RngSeed),
parameterTree: GurobiUtils.CreateParameterTree(),
configuration: configuration);
try
{
if (!string.IsNullOrWhiteSpace(pathToTestInstanceFolder))
{
var testInstances = GurobiUtils.CreateInstances(pathToTestInstanceFolder, gurobiConfig.NumberOfSeeds, gurobiConfig.RngSeed);
tuner.SetTestInstances(testInstances);
}
}
catch
{
}
return(tuner);
}
