Practical 3

/*
 * 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;
/**
 * A simple example showing how to create
 * a datacenter with one host and run two
 * cloudlets on it. The cloudlets run in
 * VMs with the same MIPS requirements.
 * The cloudlets will take the same time to
 * complete the execution.
 */
public class CloudSimExample2 {
	/** The cloudlet list. */
	private static List<Cloudlet> cloudletList;
	/** The vmlist. */
	private static List<Vm> vmlist;
	/**
	 * Creates main() to run this example
	 */
	public static void main(String[] args) {
		Log.printLine("Starting CloudSimExample2...");
		try {
			// First step: Initialize the CloudSim package. It should be called
			// before creating any entities.
			int num_user = 1; // number of cloud 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 datacenter0 = createDatacenter("Datacenter_0");
			//Third step: Create Broker
			DatacenterBroker broker = createBroker();
			int brokerId = broker.getId();
			//Fourth step: Create one virtual machine
			vmlist = new ArrayList<Vm>();
			//VM description
			int vmid = 0;
			int mips = 250;
			long size = 10000; //image size (MB)
			int ram = 512;//vm memory (MB)
			long bw = 1000;
			int pesNumber = 1; //number of cpus
			String vmm = "Xen"; //VMM name
			//create two VMs
			Vm vm1 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size,
					vmm, new CloudletSchedulerTimeShared());
			vmid++;
			Vm vm2 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size,
					vmm, new CloudletSchedulerTimeShared());
			//add the VMs to the vmList
			vmlist.add(vm1);
			vmlist.add(vm2);
			//submit vm list to the broker
			broker.submitVmList(vmlist);
			//Fifth step: Create two Cloudlets
			cloudletList = new ArrayList<Cloudlet>();
			//Cloudlet properties
			int id = 0;
			int pesNumber = 1;
			long length = 250000;
			long fileSize = 300;
			long outputSize = 300;
			UtilizationModel utilizationModel = new UtilizationModelFull();
			Cloudlet cloudlet1 = new Cloudlet(id, length, pesNumber, fileSize,
					outputSize, utilizationModel, utilizationModel, utilizationModel);
			cloudlet1.setUserId(brokerId);
			id++;
			Cloudlet cloudlet2 = new Cloudlet(id, length, pesNumber, fileSize,
					outputSize, utilizationModel, utilizationModel, utilizationModel);
			cloudlet2.setUserId(brokerId);
			//add the cloudlets to the list
			cloudletList.add(cloudlet1);
			cloudletList.add(cloudlet2);
			//submit cloudlet list to the broker
			broker.submitCloudletList(cloudletList);
			//bind the cloudlets to the vms. This way, the broker
			// will submit the bound cloudlets only to the specific VM
			broker.bindCloudletToVm(cloudlet1.getCloudletId(), vm1.getId());
			broker.bindCloudletToVm(cloudlet2.getCloudletId(), vm2.getId());
			// Sixth 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("CloudSimExample2 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
		// our machine
		List<Host> hostList = new ArrayList<Host>();
		// 2. A Machine contains one or more PEs or CPUs/Cores.
		// In this example, it will have only one core.
		List<Pe> peList = new ArrayList<Pe>();
		int mips = 1000;
		// 3. Create PEs and add these into a list.
		peList.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id and
		// MIPS Rating
		// 4. Create Host with its id and list of PEs and add them to the list of machines
		int hostId = 0;
		int ram = 2048; //host memory (MB)
		long storage = 100000; //host storage
		int bw = 10000;
		hostList.add(
				new Host(
					hostId,
					new RamProvisionerSimple(ram),
					new BwProvisionerSimple(bw),
					storage,
					peList,
					new VmSchedulerTimeShared(peList)
				)
		); // This is our 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 = 0.001; // the cost of using storage in this resource
		double costPerBw = 0.0;
		// 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(){
		DatacenterBroker broker = null;
		try {
			broker = new DatacenterBroker("Broker");
		} 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 + "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 + dft.format(cloudlet.getActualCPUTime()) + indent +
						indent + dft.format(cloudlet.getExecStartTime())+
						indent + indent + dft.format(cloudlet.getFinishTime()));
			}
		}
	}
}

0.1: Broker: Sending cloudlet 0 to VM #0
0.1: Broker: Sending cloudlet 1 to VM #1
1000.1: Broker: Cloudlet 0 received
1000.1: Broker: Cloudlet 1 received
1000.1: Broker: All Cloudlets executed. Finishing...
1000.1: Broker: Destroying VM #0
1000.1: Broker: Destroying VM #1
Broker is shutting down...
Simulation: No more future events
CloudInformationService: Notify all CloudSim entities for shutting down.
Datacenter_0 is shutting down...
Broker is shutting down...
Simulation completed.
Simulation completed.

The following table:
"========== OUTPUT====
",,,,,,,
"Cloudlet ID
","STATUS
","Data center ID
",,"VM ID
","Time
","Start Time
","Finish T
"
"0
","SUCCESS
","2
","0
",,"1000
","0.1
","1000.1
"
"1
","SUCCESS
","2
","1
",,"1000
","0.1
","1000.1
"

CloudSimExample2 finished!