Practical 7

/*
 * Title: CloudSim Toolkit
 * Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation
 * of Clouds
 * Licence: GPL - http://www.gnu.org/copyleft/gpl.html
 * Copyright (c) 2009, The University of Melbourne, Australia
 */
package org.cloudbus.cloudsim.examples;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;
import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;
/**
 * An example showing how to pause and resume the simulation,
 * and create simulation entities (a DatacenterBroker in this example)
 * dynamically.
 */
public class CloudSimExample7 {
	/** The cloudlet list. */
	private static List<Cloudlet> cloudletList;
	/** The vmlist. */
	private static List<Vm> vmlist;
	private static List<Vm> createVM(int userId, int vms, int idShift) {
		//Creates a container to store VMs. This list is passed to the broker later
		LinkedList<Vm> list = new LinkedList<Vm>();
		//VM Parameters
		long size = 10000; //image size (MB)
		int ram = 512; //vm memory (MB)
		int mips = 250;
		long bw = 1000;
		int pesNumber = 1; //number of cpus
		String vmm = "Xen"; //VMM name
		//create VMs
		Vm[] vm = new Vm[vms];
		for(int i=0;i<vms;i++){
			vm[i] = new Vm(idShift + i, userId, mips, pesNumber, ram, bw, size,
					vmm, new CloudletSchedulerTimeShared());
			list.add(vm[i]);
		}
		return list;
	}
	private static List<Cloudlet> createCloudlet(int userId, int cloudlets, int idShift) {
		// Creates a container to store Cloudlets
		LinkedList<Cloudlet> list = new LinkedList<Cloudlet>();
		//cloudlet parameters
		long length = 40000;
		long fileSize = 300;
		long outputSize = 300;
		int pesNumber = 1;
		UtilizationModel utilizationModel = new UtilizationModelFull();
		Cloudlet[] cloudlet = new Cloudlet [cloudlets];
		for(int i=0;i<cloudlets;i++){
			cloudlet[i] = new Cloudlet(idShift + i, length, pesNumber, fileSize,
					outputSize, utilizationModel, utilizationModel, utilizationModel);
			// setting the owner of these Cloudlets
			cloudlet[i].setUserId(userId);
			list.add(cloudlet[i]);
		}
		return list;
	}
	////////////////////////// STATIC METHODS ///////////////////////
	/**
	 * Creates main() to run this example
	 */
	public static void main(String[] args) {
		Log.printLine("Starting CloudSimExample7...");
		try {
			// First step: Initialize the CloudSim package. It should be called
			// before creating any entities.
			int num_user = 2; // number of grid users
			Calendar calendar = Calendar.getInstance();
			boolean trace_flag = false; // mean trace events
			// Initialize the CloudSim library
			CloudSim.init(num_user, calendar, trace_flag);
			// Second step: Create Datacenters
			//Datacenters are the resource providers in CloudSim. We need at list one
			//of them to run a CloudSim simulation
			@SuppressWarnings("unused")
			Datacenter datacenter = createDatacenter("Datacenter_0");
			@SuppressWarnings("unused")
			Datacenter datacenter1 = createDatacenter("Datacenter_1");
			//Third step: Create Broker
			DatacenterBroker broker = createBroker("Broker_0");
			int brokerId = broker.getId();
			//Fourth step: Create VMs and Cloudlets and send them to broker
			vmlist = createVM(brokerId, 5, 0); //creating 5 vms
			cloudletList = createCloudlet(brokerId, 10, 0); // creating 10 cloudlets
			broker.submitVmList(vmlist);
			broker.submitCloudletList(cloudletList);
			// A thread that will create a new broker at 200 clock time
			Runnable monitor = new Runnable() {
				@Override
				public void run() {
					CloudSim.pauseSimulation (200);
					while (true) {
						if (CloudSim.isPaused()) {
							break;
						}
						try {
							Thread.sleep(100);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}
					}
					Log.printLine("\n\n\n" + CloudSim.clock() + ": The
					simulation is paused for 5 sec\n\n");
					try {
						Thread.sleep(5000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					DatacenterBroker broker = createBroker("Broker_1");
					int brokerId = broker.getId();
					//Create VMs and Cloudlets and send them to broker
					vmlist = createVM(brokerId, 5, 100); //creating 5 vms
					cloudletList = createCloudlet(brokerId, 10, 100); // creating
					// 10 cloudlets
					broker.submitVmList(vmlist);
					broker.submitCloudletList(cloudletList);
					CloudSim.resumeSimulation();
				}
			};
			new Thread(monitor).start();
			Thread.sleep(1000);
			// Fifth step: Starts the simulation
			CloudSim.startSimulation();
			// Final step: Print results when simulation is over
			List<Cloudlet> newList = broker.getCloudletReceivedList();
			CloudSim.stopSimulation();
			printCloudletList(newList);
			Log.printLine("CloudSimExample7 finished!");
		}
		catch (Exception e)
		{
			e.printStackTrace();
			Log.printLine("The simulation has been terminated due to an unexpected
			error");
		}
	}
	private static Datacenter createDatacenter(String name){
		// Here are the steps needed to create a PowerDatacenter:
		// 1. We need to create a list to store one or more
		// Machines
		List<Host> hostList = new ArrayList<Host>();
		// 2. A Machine contains one or more PEs or CPUs/Cores. Therefore, should
		// create a list to store these PEs before creating
		// a Machine.
		List<Pe> peList1 = new ArrayList<Pe>();
		int mips = 1000;
		// 3. Create PEs and add these into the list.
		//for a quad-core machine, a list of 4 PEs is required:
		peList1.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id
		// and MIPS Rating
		peList1.add(new Pe(1, new PeProvisionerSimple(mips)));
		peList1.add(new Pe(2, new PeProvisionerSimple(mips)));
		peList1.add(new Pe(3, new PeProvisionerSimple(mips)));
		//Another list, for a dual-core machine
		List<Pe> peList2 = new ArrayList<Pe>();
		peList2.add(new Pe(0, new PeProvisionerSimple(mips)));
		peList2.add(new Pe(1, new PeProvisionerSimple(mips)));
		//4. Create Hosts with its id and list of PEs and add them to the list of machines
		int hostId = 0;
		int ram = 16384; //host memory (MB)
		long storage = 100000; //host storage
		int bw = 1000;
		hostList.add(
				new Host(
					hostId,
					new RamProvisionerSimple(ram),
					new BwProvisionerSimple(bw),
					storage,
					peList1,
					new VmSchedulerTimeShared(peList1)
				)
		); // This is our first machine
		hostId++;
		hostList.add(
				new Host(
					hostId,
					new RamProvisionerSimple(ram),
					new BwProvisionerSimple(bw),
					storage,
					peList2,
					new VmSchedulerTimeShared(peList2)
				)
		); // Second machine
		// 5. Create a Datacenter Characteristics object that stores the
		// properties of a data center: architecture, OS, list of
		// Machines, allocation policy: time- or space-shared, time zone
		// and its price (G$/Pe time unit).
		String arch = "x86"; // system architecture
		String os = "Linux";
		// operating system
		String vmm = "Xen";
		double time_zone = 10.0;
		// time zone this resource located
		double cost = 3.0;
		// the cost of using processing in this resource
		double costPerMem = 0.05;
		// the cost of using memory in this resource
		double costPerStorage = 0.1; // the cost of using storage in this resource
		double costPerBw = 0.1;
		// the cost of using bw in this
		// resource
		LinkedList<Storage> storageList = new LinkedList<Storage>(); //we are not
		// adding SAN devices by now
		DatacenterCharacteristics characteristics = new DatacenterCharacteristics(
				arch, os, vmm, hostList, time_zone, cost, costPerMem, costPerStorage, costPerBw);
		// 6. Finally, we need to create a PowerDatacenter object.
		Datacenter datacenter = null;
		try {
			datacenter = new Datacenter(name, characteristics, new
					VmAllocationPolicySimple(hostList), storageList, 0);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return datacenter;
	}
	//We strongly encourage users to develop their own broker policies, to submit vms and
	//cloudlets according
	//to the specific rules of the simulated scenario
	private static DatacenterBroker createBroker(String name) {
		DatacenterBroker broker = null;
		try {
			broker = new DatacenterBroker(name);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
		return broker;
	}
	/**
	 * Prints the Cloudlet objects
	 * @param list list of Cloudlets
	 */
	private static void printCloudletList(List<Cloudlet> list) {
		int size = list.size();
		Cloudlet cloudlet;
		String indent = " ";
		Log.printLine();
		Log.printLine("========== OUTPUT==========");
		Log.printLine("Cloudlet ID" + indent + "STATUS" + indent +
				"Data center ID" + indent + "VM ID" + indent + indent + "Time" +
				indent + "Start Time" + indent + "Finish Time");
		DecimalFormat dft = new DecimalFormat("###.##");
		for (int i = 0; i < size; i++) {
			cloudlet = list.get(i);
			Log.print(indent + cloudlet.getCloudletId() + indent + indent);
			if (cloudlet.getCloudletStatus() == Cloudlet.SUCCESS){
				Log.print("SUCCESS");
				Log.printLine(indent + indent + cloudlet.getResourceId() + indent
						+ indent + indent + cloudlet.getVmId() +
						indent + indent + indent + dft.format(cloudlet.getActualCPUTime()) +
						indent + indent + indent + dft.format(cloudlet.getExecStartTime())+
						indent + indent + indent + dft.format(cloudlet.getFinishTime()));
			}
		}
	}
}

Starting CloudSimExample7...
...
200.0: The
simulation is paused for 5 sec


200.0: Broker_1 is starting...
200.0: Broker_1: Cloud Resource List received with 2 resource(s)
200.0: Broker_1: Trying to Create VM #100 in Datacenter_0
200.0: Broker_1: Trying to Create VM #101 in Datacenter_0
200.0: Broker_1: Trying to Create VM #102 in Datacenter_0
200.0: Broker_1: Trying to Create VM #103 in Datacenter_0
200.0: Broker_1: Trying to Create VM #104 in Datacenter_0
200.1: Broker_1: VM #100 has been created in Datacenter #2, Host #0
200.1: Broker_1: VM #101 has been created in Datacenter #2, Host #0
200.1: Broker_1: VM #102 has been created in Datacenter #2, Host #1
200.1: Broker_1: VM #103 has been created in Datacenter #2, Host #1
200.1: Broker_1: VM #104 has been created in Datacenter #3, Host #0
200.1: Broker_1: Sending cloudlet 100 to VM #100
...
200.1: Broker_1: Sending cloudlet 109 to VM #104
...
519.996: Broker_1: Cloudlet 108 received
519.996: Broker_1: Cloudlet 100 received
...
519.996: Broker_1: All Cloudlets executed. Finishing.
519.996: Broker_1: Destroying VM #100
...
519.996: Broker_1: Destroying VM #104
Broker_1 is shutting down....
...
Simulation completed.

========== OUTPUT==========
Cloudlet ID  STATUS  Data center ID  VM ID   Time  Start Time  Finish Time
 0  SUCCESS  2  0  320  0.1  320.1
 5  SUCCESS  2  0  320  0.1  320.1
 1  SUCCESS  2  1  320  0.1  320.1
 6  SUCCESS  2  1  320  0.1  320.1
 2  SUCCESS  2  2  320  0.1  320.1
 7  SUCCESS  2  2  320  0.1  320.1
 4  SUCCESS  2  4  320  0.1  320.1
 9  SUCCESS  2  4  320  0.1  320.1
 3  SUCCESS  2  3  320  0.1  320.1
 8  SUCCESS  2  3  320  0.1  320.1
 101  SUCCESS  3  101  320  200.1  520.1
 106  SUCCESS  3  101  320  200.1  520.1
 103  SUCCESS  3  103  320  200.1  520.1
 108  SUCCESS  3  103  320  200.1  520.1
 100  SUCCESS  3  100  320  200.1  520.1
 105  SUCCESS  3  100  320  200.1  520.1
 102  SUCCESS  3  102  320  200.1  520.1
 107  SUCCESS  3  102  320  200.1  520.1
 104  SUCCESS  3  104  320  200.1  520.1
 109  SUCCESS  3  104  320  200.1  520.1
CloudSimExample7 finished!