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CloudletSchedulerSpaceSharedExample1.java
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CloudletSchedulerSpaceSharedExample1.java
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/*
* CloudSim Plus: A modern, highly-extensible and easier-to-use Framework for
* Modeling and Simulation of Cloud Computing Infrastructures and Services.
* http://cloudsimplus.org
*
* Copyright (C) 2015-2016 Universidade da Beira Interior (UBI, Portugal) and
* the Instituto Federal de Educação Ciência e Tecnologia do Tocantins (IFTO, Brazil).
*
* This file is part of CloudSim Plus.
*
* CloudSim Plus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* CloudSim Plus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CloudSim Plus. If not, see <http://www.gnu.org/licenses/>.
*/
package org.cloudsimplus.examples;
import org.cloudbus.cloudsim.allocationpolicies.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.brokers.DatacenterBroker;
import org.cloudbus.cloudsim.brokers.DatacenterBrokerSimple;
import org.cloudbus.cloudsim.cloudlets.Cloudlet;
import org.cloudbus.cloudsim.cloudlets.CloudletSimple;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.datacenters.Datacenter;
import org.cloudbus.cloudsim.datacenters.DatacenterCharacteristics;
import org.cloudbus.cloudsim.datacenters.DatacenterCharacteristicsSimple;
import org.cloudbus.cloudsim.datacenters.DatacenterSimple;
import org.cloudbus.cloudsim.hosts.Host;
import org.cloudbus.cloudsim.hosts.HostSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.ResourceProvisioner;
import org.cloudbus.cloudsim.provisioners.ResourceProvisionerSimple;
import org.cloudbus.cloudsim.resources.Pe;
import org.cloudbus.cloudsim.resources.PeSimple;
import org.cloudbus.cloudsim.schedulers.cloudlet.CloudletSchedulerSpaceShared;
import org.cloudbus.cloudsim.schedulers.vm.VmScheduler;
import org.cloudbus.cloudsim.schedulers.vm.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.utilizationmodels.UtilizationModel;
import org.cloudbus.cloudsim.utilizationmodels.UtilizationModelFull;
import org.cloudbus.cloudsim.vms.Vm;
import org.cloudbus.cloudsim.vms.VmSimple;
import org.cloudsimplus.builders.tables.CloudletsTableBuilder;
import java.util.ArrayList;
import java.util.List;
/**
* An example that runs 4 Cloudlets into a VM where its number
* of PEs is just half of the total PEs required by all Cloudlets.
* The Vm uses a {@link CloudletSchedulerSpaceShared}, which
* makes half of the Cloudlets to run first, while the other half
* waits their finalization.
* This way, the execution time of all cloudlets is the same,
* but the start time of the second half is equal to
* finish time of the first half.
*
* @author Manoel Campos da Silva Filho
* @since CloudSim Plus 1.2.1
*/
public class CloudletSchedulerSpaceSharedExample1 {
private static final int HOSTS = 1;
private static final int HOST_PES = 4;
private static final int VMS = 1;
private static final int VM_PES = 4;
private static final int CLOUDLETS = 4;
private static final int CLOUDLET_PES = 2;
private static final int CLOUDLET_LENGTH = 10000;
private final CloudSim simulation;
private DatacenterBroker broker0;
private List<Vm> vmList;
private List<Cloudlet> cloudletList;
private Datacenter datacenter0;
public static void main(String[] args) {
new CloudletSchedulerSpaceSharedExample1();
}
public CloudletSchedulerSpaceSharedExample1() {
simulation = new CloudSim();
datacenter0 = createDatacenter();
//Creates a broker that is a software acting on behalf a cloud customer to manage his/her VMs and Cloudlets
broker0 = new DatacenterBrokerSimple(simulation);
vmList = createVms();
cloudletList = createCloudlets();
broker0.submitVmList(vmList);
broker0.submitCloudletList(cloudletList);
simulation.start();
final List<Cloudlet> finishedCloudlets = broker0.getCloudletFinishedList();
new CloudletsTableBuilder(finishedCloudlets).build();
}
/**
* Creates a Datacenter and its Hosts.
*/
private Datacenter createDatacenter() {
final List<Host> hostList = new ArrayList<>(HOSTS);
for(int h = 0; h < HOSTS; h++) {
Host host = createHost();
hostList.add(host);
}
DatacenterCharacteristics characteristics = new DatacenterCharacteristicsSimple(hostList);
final Datacenter dc = new DatacenterSimple(simulation, characteristics, new VmAllocationPolicySimple());
return dc;
}
private Host createHost() {
List<Pe> peList = new ArrayList<>(HOST_PES);
//List of Host's CPUs (Processing Elements, PEs)
for (int i = 0; i < HOST_PES; i++) {
peList.add(new PeSimple(1000, new PeProvisionerSimple()));
}
final long ram = 2048; //in Megabytes
final long bw = 10000; //in Megabits/s
final long storage = 1000000; //in Megabytes
ResourceProvisioner ramProvisioner = new ResourceProvisionerSimple();
ResourceProvisioner bwProvisioner = new ResourceProvisionerSimple();
VmScheduler vmScheduler = new VmSchedulerTimeShared();
Host host = new HostSimple(ram, bw, storage, peList);
host
.setRamProvisioner(ramProvisioner)
.setBwProvisioner(bwProvisioner)
.setVmScheduler(vmScheduler);
return host;
}
/**
* Creates a list of VMs.
*/
private List<Vm> createVms() {
final List<Vm> list = new ArrayList<>(VMS);
for (int v = 0; v < VMS; v++) {
Vm vm =
new VmSimple(v, 1000, VM_PES)
.setRam(512).setBw(1000).setSize(10000)
.setCloudletScheduler(new CloudletSchedulerSpaceShared());
list.add(vm);
}
return list;
}
/**
* Creates a list of Cloudlets.
*/
private List<Cloudlet> createCloudlets() {
final List<Cloudlet> list = new ArrayList<>(CLOUDLETS);
UtilizationModel utilization = new UtilizationModelFull();
for (int c = 0; c < CLOUDLETS; c++) {
Cloudlet cloudlet =
new CloudletSimple(c, CLOUDLET_LENGTH, CLOUDLET_PES)
.setFileSize(1024)
.setOutputSize(1024)
.setUtilizationModel(utilization);
list.add(cloudlet);
}
return list;
}
}