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Code Issues Releases Wiki Activity

change algorithmReader to allow concurrency

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oblonski 2013-06-20 16:58:39 +02:00
parent cdf4878bf9
commit 277ffdb51a
9 changed files with 317 additions and 208 deletions
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2
jsprit-examples/input/algorithmConfig.xml
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@ -34,7 +34,7 @@
<searchStrategy name="randomRuinAndRecreate">
<selector name="selectBest"/>
<acceptor name="schrimpfAcceptance">
<alpha>0.05</alpha>
<alpha>0.15</alpha>
<warmup>100</warmup>
</acceptor>
<modules>

107
jsprit-examples/src/main/java/examples/ConcurrentMultipleDepotExample.java Normal file
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@ -0,0 +1,107 @@
package examples;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import util.Coordinate;
import util.Solutions;
import algorithms.VehicleRoutingAlgorithms;
import analysis.AlgorithmSearchProgressChartListener;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.StopWatch;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.FleetSize;
import basics.VehicleRoutingProblemSolution;
import basics.algo.VehicleRoutingAlgorithmListeners.Priority;
import basics.io.VrpXMLReader;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
import basics.route.VehicleImpl.VehicleType;
public class ConcurrentMultipleDepotExample {
/**
* @param args
*/
public static void main(String[] args) {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
/*
* Read cordeau-instance p01, BUT only its services without any vehicles
*/
new VrpXMLReader(vrpBuilder).read("input/vrp_cordeau_01.xml");
/*
* add vehicles with its depots
* 4 depots:
* (20,20)
* (30,40)
* (50,30)
* (60,50)
*
* each with 4 vehicles each with a capacity of 80
*/
int nuOfVehicles = 4;
int capacity = 80;
Coordinate firstDepotCoord = Coordinate.newInstance(20, 20);
Coordinate second = Coordinate.newInstance(30, 40);
Coordinate third = Coordinate.newInstance(50, 30);
Coordinate fourth = Coordinate.newInstance(60, 50);
int depotCounter = 1;
for(Coordinate depotCoord : Arrays.asList(firstDepotCoord,second,third,fourth)){
for(int i=0;i<nuOfVehicles;i++){
VehicleType vehicleType = VehicleType.Builder.newInstance(depotCounter + "_" + (i+1) + "_type", capacity).setCostPerDistance(1.0).build();
Vehicle vehicle = VehicleImpl.VehicleBuilder.newInstance(depotCounter + "_" + (i+1) + "_vehicle").setLocationCoord(depotCoord).setType(vehicleType).build();
vrpBuilder.addVehicle(vehicle);
}
depotCounter++;
}
/*
* define problem with finite fleet
*/
vrpBuilder.setFleetSize(FleetSize.FINITE);
/*
* build the problem
*/
VehicleRoutingProblem vrp = vrpBuilder.build();
/*
* plot to see how the problem looks like
*/
// SolutionPlotter.plotVrpAsPNG(vrp, "output/problem01.png", "p01");
/*
* Def. executorService and nuOfThreads
*/
int nuOfThreads = Runtime.getRuntime().availableProcessors() + 2;
ExecutorService executor = Executors.newFixedThreadPool(nuOfThreads);
/*
* solve the problem
*/
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateConcurrentAlgorithm(vrp, "input/algorithmConfig.xml", executor, nuOfThreads);
vra.setNuOfIterations(20000);
vra.getAlgorithmListeners().addListener(new StopWatch(),Priority.HIGH);
vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/progress.png"));
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
executor.shutdown();
// Wait until all threads are finish
while (!executor.isTerminated()) {
}
System.out.println("Finished all threads");
SolutionPrinter.print(Solutions.getBest(solutions));
SolutionPlotter.plotSolutionAsPNG(vrp, Solutions.getBest(solutions), "output/p01_solution.png", "p01");
}
}

126
jsprit-examples/src/main/java/examples/ConcurrentMultipleDepotExampleWithPenaltyVehicles.java Normal file
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@ -0,0 +1,126 @@
package examples;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import util.Coordinate;
import util.Solutions;
import algorithms.VehicleRoutingAlgorithms;
import analysis.AlgorithmSearchProgressChartListener;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.StopWatch;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.FleetSize;
import basics.VehicleRoutingProblemSolution;
import basics.algo.VehicleRoutingAlgorithmListeners.Priority;
import basics.io.VrpXMLReader;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
import basics.route.VehicleImpl.VehicleType;
public class ConcurrentMultipleDepotExampleWithPenaltyVehicles {
/**
* @param args
*/
public static void main(String[] args) {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
/*
* Read cordeau-instance p01, BUT only its services without any vehicles
*/
new VrpXMLReader(vrpBuilder).read("input/vrp_cordeau_08.xml");
/*
* add vehicles with its depots
* 2 depots:
* (-33,33)
* (33,-33)
*
* each with 14 vehicles each with a capacity of 500 and a maximum duration of 310
*/
int nuOfVehicles = 14;
int capacity = 500;
double maxDuration = 310;
Coordinate firstDepotCoord = Coordinate.newInstance(-33, 33);
Coordinate second = Coordinate.newInstance(33, -33);
/*
* number of penalty vehicles
*/
int nuOfPenaltyVehicles = 4;
int depotCounter = 1;
for(Coordinate depotCoord : Arrays.asList(firstDepotCoord,second)){
for(int i=0;i<nuOfVehicles;i++){
VehicleType vehicleType = VehicleType.Builder.newInstance(depotCounter + "_" + (i+1) + "_type", capacity).setCostPerDistance(1.0).build();
String vehicleId = depotCounter + "_" + (i+1) + "_vehicle";
VehicleImpl.VehicleBuilder vehicleBuilder = VehicleImpl.VehicleBuilder.newInstance(vehicleId);
vehicleBuilder.setLocationCoord(depotCoord);
vehicleBuilder.setType(vehicleType);
vehicleBuilder.setLatestArrival(maxDuration);
Vehicle vehicle = vehicleBuilder.build();
vrpBuilder.addVehicle(vehicle);
}
for(int i=0;i<nuOfPenaltyVehicles;i++){
VehicleType penaltyType = VehicleType.Builder.newInstance(depotCounter + "_" + (i+1) + "_penaltyType", capacity).setFixedCost(50).setCostPerDistance(3.0).build();
String vehicleId = depotCounter + "_" + (i+1) + "_penaltyVehicle";
VehicleImpl.VehicleBuilder vehicleBuilder = VehicleImpl.VehicleBuilder.newInstance(vehicleId);
vehicleBuilder.setLocationCoord(depotCoord);
vehicleBuilder.setType(penaltyType);
vehicleBuilder.setLatestArrival(maxDuration);
Vehicle penaltyVehicle = vehicleBuilder.build();
vrpBuilder.addVehicle(penaltyVehicle);
}
depotCounter++;
}
/*
* define problem with finite fleet
*/
vrpBuilder.setFleetSize(FleetSize.FINITE);
/*
* build the problem
*/
VehicleRoutingProblem vrp = vrpBuilder.build();
/*
* plot to see how the problem looks like
*/
// SolutionPlotter.plotVrpAsPNG(vrp, "output/problem08.png", "p08");
/*
* Def. executorService and nuOfThreads
*/
int nuOfThreads = Runtime.getRuntime().availableProcessors() + 2;
ExecutorService executor = Executors.newFixedThreadPool(nuOfThreads);
/*
* solve the problem
*/
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateConcurrentAlgorithm(vrp, "input/algorithmConfig.xml",executor,nuOfThreads);
vra.setNuOfIterations(5000);
vra.getAlgorithmListeners().addListener(new StopWatch(),Priority.HIGH);
vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/progress.png"));
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
executor.shutdown();
// Wait until all threads are finish
while (!executor.isTerminated()) {
}
System.out.println("Finished all threads");
SolutionPrinter.print(Solutions.getBest(solutions));
SolutionPlotter.plotSolutionAsPNG(vrp, Solutions.getBest(solutions), "output/p08_solution.png", "p08");
}
}

5
jsprit-examples/src/main/java/examples/MultipleDepotExample.java
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@ -9,10 +9,12 @@ import algorithms.VehicleRoutingAlgorithms;
import analysis.AlgorithmSearchProgressChartListener;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.StopWatch;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.FleetSize;
import basics.VehicleRoutingProblemSolution;
import basics.algo.VehicleRoutingAlgorithmListeners.Priority;
import basics.io.VrpXMLReader;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
@ -77,6 +79,9 @@ public class MultipleDepotExample {
* solve the problem
*/
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/algorithmConfig.xml");
vra.setNuOfIterations(5000);
vra.getAlgorithmListeners().addListener(new StopWatch(),Priority.HIGH);
vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/progress.png"));
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
SolutionPrinter.print(Solutions.getBest(solutions));

9
jsprit-examples/src/main/java/examples/MultipleDepotExampleWithPenaltyVehicles.java
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@ -9,10 +9,12 @@ import algorithms.VehicleRoutingAlgorithms;
import analysis.AlgorithmSearchProgressChartListener;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.StopWatch;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.FleetSize;
import basics.VehicleRoutingProblemSolution;
import basics.algo.VehicleRoutingAlgorithmListeners.Priority;
import basics.io.VrpXMLReader;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
@ -62,8 +64,8 @@ public class MultipleDepotExampleWithPenaltyVehicles {
vrpBuilder.addVehicle(vehicle);
}
for(int i=0;i<nuOfPenaltyVehicles;i++){
VehicleType penaltyType = VehicleType.Builder.newInstance(depotCounter + "_" + (i+1) + "_penaltyType", capacity).setFixedCost(50).setCostPerDistance(3.0).build();
String vehicleId = depotCounter + "_" + (i+1) + "_penaltyVehicle";
VehicleType penaltyType = VehicleType.Builder.newInstance(depotCounter + "_" + (i+1) + "_type#penalty", capacity).setFixedCost(50).setCostPerDistance(3.0).build();
String vehicleId = depotCounter + "_" + (i+1) + "_vehicle#penalty";
VehicleImpl.VehicleBuilder vehicleBuilder = VehicleImpl.VehicleBuilder.newInstance(vehicleId);
vehicleBuilder.setLocationCoord(depotCoord);
vehicleBuilder.setType(penaltyType);
@ -95,6 +97,9 @@ public class MultipleDepotExampleWithPenaltyVehicles {
* solve the problem
*/
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/algorithmConfig.xml");
vra.setNuOfIterations(5000);
vra.getAlgorithmListeners().addListener(new StopWatch(),Priority.HIGH);
vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/progress.png"));
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
SolutionPrinter.print(Solutions.getBest(solutions));