401 lines
15 KiB
Java
401 lines
15 KiB
Java
/*
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* Title: EdgeCloudSim - Mobile Device Manager
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*
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* Description:
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* Mobile Device Manager is one of the most important component
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* in EdgeCloudSim. It is responsible for creating the tasks,
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* submitting them to the related VM with respect to the
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* Edge Orchestrator decision, and takes proper actions when
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* the execution of the tasks are finished. It also feeds the
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* SimLogger with the relevant results.
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* SampleMobileDeviceManager sends tasks to the edge servers or
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* cloud servers. The mobile devices use WAN if the tasks are
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* offloaded to the edge servers. On the other hand, they use WLAN
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* if the target server is an edge server. Finally, the mobile
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* devices use MAN if they must be served by a remote edge server
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* due to the congestion at their own location. In this case,
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* they access the edge server via two hops where the packets
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* must go through WLAN and MAN.
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*
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* If you want to use different topology, you should modify
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* the flow implemented in this class.
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*
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* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
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* Copyright (c) 2017, Bogazici University, Istanbul, Turkey
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*/
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package edu.boun.edgecloudsim.applications.sample_app2;
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import org.cloudbus.cloudsim.UtilizationModel;
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import org.cloudbus.cloudsim.UtilizationModelFull;
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import org.cloudbus.cloudsim.Vm;
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import org.cloudbus.cloudsim.core.CloudSim;
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import org.cloudbus.cloudsim.core.CloudSimTags;
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import org.cloudbus.cloudsim.core.SimEvent;
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import edu.boun.edgecloudsim.core.SimManager;
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import edu.boun.edgecloudsim.core.SimSettings;
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import edu.boun.edgecloudsim.core.SimSettings.NETWORK_DELAY_TYPES;
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import edu.boun.edgecloudsim.edge_client.CpuUtilizationModel_Custom;
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import edu.boun.edgecloudsim.edge_client.MobileDeviceManager;
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import edu.boun.edgecloudsim.edge_client.Task;
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import edu.boun.edgecloudsim.edge_server.EdgeHost;
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import edu.boun.edgecloudsim.edge_server.EdgeVM;
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import edu.boun.edgecloudsim.network.NetworkModel;
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import edu.boun.edgecloudsim.utils.TaskProperty;
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import edu.boun.edgecloudsim.utils.Location;
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import edu.boun.edgecloudsim.utils.SimLogger;
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public class SampleMobileDeviceManager extends MobileDeviceManager {
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private static final int BASE = 100000; //start from base in order not to conflict cloudsim tag!
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private static final int UPDATE_MM1_QUEUE_MODEL = BASE + 1;
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private static final int REQUEST_RECEIVED_BY_CLOUD = BASE + 2;
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private static final int REQUEST_RECEIVED_BY_EDGE_DEVICE = BASE + 3;
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private static final int REQUEST_RECEIVED_BY_REMOTE_EDGE_DEVICE = BASE + 4;
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private static final int REQUEST_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_NEIGHBOR = BASE + 5;
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private static final int RESPONSE_RECEIVED_BY_MOBILE_DEVICE = BASE + 6;
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private static final int RESPONSE_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_MOBILE_DEVICE = BASE + 7;
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private static final double MM1_QUEUE_MODEL_UPDATE_INTEVAL = 5; //seconds
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private int taskIdCounter=0;
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public SampleMobileDeviceManager() throws Exception{
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}
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@Override
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public void initialize() {
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}
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@Override
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public UtilizationModel getCpuUtilizationModel() {
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return new CpuUtilizationModel_Custom();
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}
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@Override
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public void startEntity() {
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super.startEntity();
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schedule(getId(), SimSettings.CLIENT_ACTIVITY_START_TIME +
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MM1_QUEUE_MODEL_UPDATE_INTEVAL, UPDATE_MM1_QUEUE_MODEL);
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}
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/**
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* Submit cloudlets to the created VMs.
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*
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* @pre $none
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* @post $none
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*/
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protected void submitCloudlets() {
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//do nothing!
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}
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/**
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* Process a cloudlet return event.
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*
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* @param ev a SimEvent object
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* @pre ev != $null
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* @post $none
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*/
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protected void processCloudletReturn(SimEvent ev) {
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NetworkModel networkModel = SimManager.getInstance().getNetworkModel();
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Task task = (Task) ev.getData();
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SimLogger.getInstance().taskExecuted(task.getCloudletId());
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if(task.getAssociatedDatacenterId() == SimSettings.CLOUD_DATACENTER_ID){
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//SimLogger.printLine(CloudSim.clock() + ": " + getName() + ": task #" + task.getCloudletId() + " received from cloud");
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double WanDelay = networkModel.getDownloadDelay(SimSettings.CLOUD_DATACENTER_ID, task.getMobileDeviceId(), task);
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if(WanDelay > 0)
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{
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Location currentLocation = SimManager.getInstance().getMobilityModel().getLocation(task.getMobileDeviceId(),CloudSim.clock()+WanDelay);
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if(task.getSubmittedLocation().getServingWlanId() == currentLocation.getServingWlanId())
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{
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networkModel.downloadStarted(task.getSubmittedLocation(), SimSettings.CLOUD_DATACENTER_ID);
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SimLogger.getInstance().setDownloadDelay(task.getCloudletId(), WanDelay, NETWORK_DELAY_TYPES.WAN_DELAY);
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schedule(getId(), WanDelay, RESPONSE_RECEIVED_BY_MOBILE_DEVICE, task);
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}
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else
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{
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SimLogger.getInstance().failedDueToMobility(task.getCloudletId(), CloudSim.clock());
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}
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}
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else
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{
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SimLogger.getInstance().failedDueToBandwidth(task.getCloudletId(), CloudSim.clock(), NETWORK_DELAY_TYPES.WAN_DELAY);
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}
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}
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else{
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int nextEvent = RESPONSE_RECEIVED_BY_MOBILE_DEVICE;
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int nextDeviceForNetworkModel = SimSettings.GENERIC_EDGE_DEVICE_ID;
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NETWORK_DELAY_TYPES delayType = NETWORK_DELAY_TYPES.WLAN_DELAY;
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double delay = networkModel.getDownloadDelay(task.getAssociatedHostId(), task.getMobileDeviceId(), task);
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EdgeHost host = (EdgeHost)(SimManager.
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getInstance().
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getEdgeServerManager().
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getDatacenterList().get(task.getAssociatedHostId()).
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getHostList().get(0));
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//if neighbor edge device is selected
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if(host.getLocation().getServingWlanId() != task.getSubmittedLocation().getServingWlanId())
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{
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delay = networkModel.getDownloadDelay(SimSettings.GENERIC_EDGE_DEVICE_ID, SimSettings.GENERIC_EDGE_DEVICE_ID, task);
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nextEvent = RESPONSE_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_MOBILE_DEVICE;
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nextDeviceForNetworkModel = SimSettings.GENERIC_EDGE_DEVICE_ID + 1;
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delayType = NETWORK_DELAY_TYPES.MAN_DELAY;
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}
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if(delay > 0)
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{
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Location currentLocation = SimManager.getInstance().getMobilityModel().getLocation(task.getMobileDeviceId(),CloudSim.clock()+delay);
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if(task.getSubmittedLocation().getServingWlanId() == currentLocation.getServingWlanId())
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{
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networkModel.downloadStarted(currentLocation, nextDeviceForNetworkModel);
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SimLogger.getInstance().setDownloadDelay(task.getCloudletId(), delay, delayType);
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schedule(getId(), delay, nextEvent, task);
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}
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else
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{
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SimLogger.getInstance().failedDueToMobility(task.getCloudletId(), CloudSim.clock());
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}
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}
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else
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{
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SimLogger.getInstance().failedDueToBandwidth(task.getCloudletId(), CloudSim.clock(), delayType);
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}
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}
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}
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protected void processOtherEvent(SimEvent ev) {
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if (ev == null) {
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SimLogger.printLine(getName() + ".processOtherEvent(): " + "Error - an event is null! Terminating simulation...");
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System.exit(0);
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return;
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}
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NetworkModel networkModel = SimManager.getInstance().getNetworkModel();
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switch (ev.getTag()) {
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case UPDATE_MM1_QUEUE_MODEL:
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{
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((SampleNetworkModel)networkModel).updateMM1QueeuModel();
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schedule(getId(), MM1_QUEUE_MODEL_UPDATE_INTEVAL, UPDATE_MM1_QUEUE_MODEL);
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break;
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}
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case REQUEST_RECEIVED_BY_CLOUD:
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{
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Task task = (Task) ev.getData();
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networkModel.uploadFinished(task.getSubmittedLocation(), SimSettings.CLOUD_DATACENTER_ID);
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submitTaskToVm(task, SimSettings.VM_TYPES.CLOUD_VM);
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break;
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}
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case REQUEST_RECEIVED_BY_EDGE_DEVICE:
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{
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Task task = (Task) ev.getData();
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networkModel.uploadFinished(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID);
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submitTaskToVm(task, SimSettings.VM_TYPES.EDGE_VM);
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break;
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}
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case REQUEST_RECEIVED_BY_REMOTE_EDGE_DEVICE:
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{
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Task task = (Task) ev.getData();
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networkModel.uploadFinished(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID+1);
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submitTaskToVm(task, SimSettings.VM_TYPES.EDGE_VM);
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break;
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}
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case REQUEST_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_NEIGHBOR:
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{
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Task task = (Task) ev.getData();
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networkModel.uploadFinished(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID);
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double manDelay = networkModel.getUploadDelay(SimSettings.GENERIC_EDGE_DEVICE_ID, SimSettings.GENERIC_EDGE_DEVICE_ID, task);
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if(manDelay>0){
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networkModel.uploadStarted(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID+1);
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SimLogger.getInstance().setUploadDelay(task.getCloudletId(), manDelay, NETWORK_DELAY_TYPES.MAN_DELAY);
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schedule(getId(), manDelay, REQUEST_RECEIVED_BY_REMOTE_EDGE_DEVICE, task);
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}
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else
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{
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//SimLogger.printLine("Task #" + task.getCloudletId() + " cannot assign to any VM");
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SimLogger.getInstance().rejectedDueToBandwidth(
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task.getCloudletId(),
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CloudSim.clock(),
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SimSettings.VM_TYPES.EDGE_VM.ordinal(),
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NETWORK_DELAY_TYPES.MAN_DELAY);
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}
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break;
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}
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case RESPONSE_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_MOBILE_DEVICE:
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{
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Task task = (Task) ev.getData();
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networkModel.downloadFinished(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID+1);
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//SimLogger.printLine(CloudSim.clock() + ": " + getName() + ": task #" + task.getCloudletId() + " received from edge");
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double delay = networkModel.getDownloadDelay(task.getAssociatedHostId(), task.getMobileDeviceId(), task);
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if(delay > 0)
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{
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Location currentLocation = SimManager.getInstance().getMobilityModel().getLocation(task.getMobileDeviceId(),CloudSim.clock()+delay);
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if(task.getSubmittedLocation().getServingWlanId() == currentLocation.getServingWlanId())
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{
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networkModel.downloadStarted(currentLocation, SimSettings.GENERIC_EDGE_DEVICE_ID);
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SimLogger.getInstance().setDownloadDelay(task.getCloudletId(), delay, NETWORK_DELAY_TYPES.WLAN_DELAY);
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schedule(getId(), delay, RESPONSE_RECEIVED_BY_MOBILE_DEVICE, task);
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}
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else
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{
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SimLogger.getInstance().failedDueToMobility(task.getCloudletId(), CloudSim.clock());
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}
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}
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else
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{
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SimLogger.getInstance().failedDueToBandwidth(task.getCloudletId(), CloudSim.clock(), NETWORK_DELAY_TYPES.WLAN_DELAY);
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}
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break;
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}
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case RESPONSE_RECEIVED_BY_MOBILE_DEVICE:
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{
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Task task = (Task) ev.getData();
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if(task.getAssociatedDatacenterId() == SimSettings.CLOUD_DATACENTER_ID)
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networkModel.downloadFinished(task.getSubmittedLocation(), SimSettings.CLOUD_DATACENTER_ID);
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else
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networkModel.downloadFinished(task.getSubmittedLocation(), SimSettings.GENERIC_EDGE_DEVICE_ID);
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SimLogger.getInstance().taskEnded(task.getCloudletId(), CloudSim.clock());
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break;
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}
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default:
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SimLogger.printLine(getName() + ".processOtherEvent(): " + "Error - event unknown by this DatacenterBroker. Terminating simulation...");
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System.exit(0);
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break;
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}
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}
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public void submitTask(TaskProperty edgeTask) {
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int vmType=0;
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int nextEvent=0;
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int nextDeviceForNetworkModel;
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NETWORK_DELAY_TYPES delayType;
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double delay=0;
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NetworkModel networkModel = SimManager.getInstance().getNetworkModel();
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//create a task
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Task task = createTask(edgeTask);
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Location currentLocation = SimManager.getInstance().getMobilityModel().
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getLocation(task.getMobileDeviceId(), CloudSim.clock());
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//set location of the mobile device which generates this task
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task.setSubmittedLocation(currentLocation);
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//add related task to log list
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SimLogger.getInstance().addLog(task.getMobileDeviceId(),
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task.getCloudletId(),
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task.getTaskType(),
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(int)task.getCloudletLength(),
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(int)task.getCloudletFileSize(),
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(int)task.getCloudletOutputSize());
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int nextHopId = SimManager.getInstance().getEdgeOrchestrator().getDeviceToOffload(task);
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if(nextHopId == SimSettings.CLOUD_DATACENTER_ID){
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delay = networkModel.getUploadDelay(task.getMobileDeviceId(), SimSettings.CLOUD_DATACENTER_ID, task);
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vmType = SimSettings.VM_TYPES.CLOUD_VM.ordinal();
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nextEvent = REQUEST_RECEIVED_BY_CLOUD;
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delayType = NETWORK_DELAY_TYPES.WAN_DELAY;
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nextDeviceForNetworkModel = SimSettings.CLOUD_DATACENTER_ID;
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}
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else {
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delay = networkModel.getUploadDelay(task.getMobileDeviceId(), SimSettings.GENERIC_EDGE_DEVICE_ID, task);
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vmType = SimSettings.VM_TYPES.EDGE_VM.ordinal();
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nextEvent = REQUEST_RECEIVED_BY_EDGE_DEVICE;
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delayType = NETWORK_DELAY_TYPES.WLAN_DELAY;
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nextDeviceForNetworkModel = SimSettings.GENERIC_EDGE_DEVICE_ID;
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}
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if(delay>0){
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Vm selectedVM = SimManager.getInstance().getEdgeOrchestrator().getVmToOffload(task, nextHopId);
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if(selectedVM != null){
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//set related host id
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task.setAssociatedDatacenterId(nextHopId);
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//set related host id
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task.setAssociatedHostId(selectedVM.getHost().getId());
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//set related vm id
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task.setAssociatedVmId(selectedVM.getId());
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//bind task to related VM
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getCloudletList().add(task);
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bindCloudletToVm(task.getCloudletId(), selectedVM.getId());
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if(selectedVM instanceof EdgeVM){
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EdgeHost host = (EdgeHost)(selectedVM.getHost());
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//if neighbor edge device is selected
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if(host.getLocation().getServingWlanId() != task.getSubmittedLocation().getServingWlanId()){
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nextEvent = REQUEST_RECEIVED_BY_EDGE_DEVICE_TO_RELAY_NEIGHBOR;
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}
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}
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networkModel.uploadStarted(currentLocation, nextDeviceForNetworkModel);
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SimLogger.getInstance().taskStarted(task.getCloudletId(), CloudSim.clock());
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SimLogger.getInstance().setUploadDelay(task.getCloudletId(), delay, delayType);
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schedule(getId(), delay, nextEvent, task);
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}
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else{
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//SimLogger.printLine("Task #" + task.getCloudletId() + " cannot assign to any VM");
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SimLogger.getInstance().rejectedDueToVMCapacity(task.getCloudletId(), CloudSim.clock(), vmType);
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}
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}
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else
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{
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//SimLogger.printLine("Task #" + task.getCloudletId() + " cannot assign to any VM");
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SimLogger.getInstance().rejectedDueToBandwidth(task.getCloudletId(), CloudSim.clock(), vmType, delayType);
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}
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}
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private void submitTaskToVm(Task task, SimSettings.VM_TYPES vmType) {
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//SimLogger.printLine(CloudSim.clock() + ": Cloudlet#" + task.getCloudletId() + " is submitted to VM#" + task.getVmId());
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schedule(getVmsToDatacentersMap().get(task.getVmId()), 0, CloudSimTags.CLOUDLET_SUBMIT, task);
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SimLogger.getInstance().taskAssigned(task.getCloudletId(),
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task.getAssociatedDatacenterId(),
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task.getAssociatedHostId(),
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task.getAssociatedVmId(),
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vmType.ordinal());
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}
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private Task createTask(TaskProperty edgeTask){
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UtilizationModel utilizationModel = new UtilizationModelFull(); /*UtilizationModelStochastic*/
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UtilizationModel utilizationModelCPU = getCpuUtilizationModel();
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Task task = new Task(edgeTask.getMobileDeviceId(), ++taskIdCounter,
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edgeTask.getLength(), edgeTask.getPesNumber(),
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edgeTask.getInputFileSize(), edgeTask.getOutputFileSize(),
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utilizationModelCPU, utilizationModel, utilizationModel);
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//set the owner of this task
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task.setUserId(this.getId());
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task.setTaskType(edgeTask.getTaskType());
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if (utilizationModelCPU instanceof CpuUtilizationModel_Custom) {
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((CpuUtilizationModel_Custom)utilizationModelCPU).setTask(task);
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}
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return task;
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}
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}
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