95edf172fe
The mobile processing units are simulated via CloudSim. It is assumed that the mobile devices operate Hosts and VMs like a server. Therefore, the classes located in the mobile_processing_unit package have a similar naming convention to the other Cloud and Edge components.
294 lines
11 KiB
Java
294 lines
11 KiB
Java
/*
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* Title: EdgeCloudSim - Mobile Device Manager
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*
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* Description:
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* DefaultMobileDeviceManager is responsible for submitting the tasks to the related
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* device by using the Edge Orchestrator. It also takes proper actions
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* when the execution of the tasks are finished.
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* By default, DefaultMobileDeviceManager sends tasks to the edge servers or
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* cloud servers. If you want to use different topology, for example
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* MAN edge server, you should modify the flow defined 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.edge_client;
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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.network.NetworkModel;
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import edu.boun.edgecloudsim.utils.EdgeTask;
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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 DefaultMobileDeviceManager 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 REQUEST_RECEIVED_BY_CLOUD = BASE + 1;
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private static final int REQUEST_RECIVED_BY_EDGE_DEVICE = BASE + 2;
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private static final int RESPONSE_RECEIVED_BY_MOBILE_DEVICE = BASE + 3;
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private int taskIdCounter=0;
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public DefaultMobileDeviceManager() 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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/**
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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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//SimLogger.printLine(CloudSim.clock() + ": " + getName() + ": task #" + task.getCloudletId() + " received from edge");
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double WlanDelay = networkModel.getDownloadDelay(task.getAssociatedHostId(), task.getMobileDeviceId(), task);
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if(WlanDelay > 0)
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{
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Location currentLocation = SimManager.getInstance().getMobilityModel().getLocation(task.getMobileDeviceId(),CloudSim.clock()+WlanDelay);
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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(), WlanDelay, NETWORK_DELAY_TYPES.WLAN_DELAY);
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schedule(getId(), WlanDelay, 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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}
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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 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,0,SimSettings.CLOUD_DATACENTER_ID);
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break;
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}
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case REQUEST_RECIVED_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, 0, SimSettings.GENERIC_EDGE_DEVICE_ID);
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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 if(task.getAssociatedDatacenterId() != SimSettings.MOBILE_DATACENTER_ID)
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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(EdgeTask edgeTask) {
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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.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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double WanDelay = networkModel.getUploadDelay(task.getMobileDeviceId(), nextHopId, task);
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if(WanDelay>0){
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networkModel.uploadStarted(currentLocation, nextHopId);
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SimLogger.getInstance().taskStarted(task.getCloudletId(), CloudSim.clock());
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SimLogger.getInstance().setUploadDelay(task.getCloudletId(), WanDelay, NETWORK_DELAY_TYPES.WAN_DELAY);
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schedule(getId(), WanDelay, REQUEST_RECEIVED_BY_CLOUD, 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.CLOUD_VM.ordinal(),
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NETWORK_DELAY_TYPES.WAN_DELAY);
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}
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}
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else if(nextHopId == SimSettings.GENERIC_EDGE_DEVICE_ID) {
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double WlanDelay = networkModel.getUploadDelay(task.getMobileDeviceId(), nextHopId, task);
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if(WlanDelay > 0){
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networkModel.uploadStarted(currentLocation, nextHopId);
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schedule(getId(), WlanDelay, REQUEST_RECIVED_BY_EDGE_DEVICE, task);
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SimLogger.getInstance().taskStarted(task.getCloudletId(), CloudSim.clock());
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SimLogger.getInstance().setUploadDelay(task.getCloudletId(), WlanDelay, NETWORK_DELAY_TYPES.WLAN_DELAY);
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}
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else {
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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.WLAN_DELAY);
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}
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}
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else {
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SimLogger.printLine("Unknown nextHopId! Terminating simulation...");
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System.exit(0);
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}
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}
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private void submitTaskToVm(Task task, double delay, int datacenterId) {
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//select a VM
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Vm selectedVM = SimManager.getInstance().getEdgeOrchestrator().getVmToOffload(task, datacenterId);
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int vmType = 0;
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if(datacenterId == SimSettings.CLOUD_DATACENTER_ID)
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vmType = SimSettings.VM_TYPES.CLOUD_VM.ordinal();
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else
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vmType = SimSettings.VM_TYPES.EDGE_VM.ordinal();
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if(selectedVM != null){
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if(datacenterId == SimSettings.CLOUD_DATACENTER_ID)
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task.setAssociatedDatacenterId(SimSettings.CLOUD_DATACENTER_ID);
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else
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task.setAssociatedDatacenterId(selectedVM.getHost().getDatacenter().getId());
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//save 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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//SimLogger.printLine(CloudSim.clock() + ": Cloudlet#" + task.getCloudletId() + " is submitted to VM#" + task.getVmId());
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schedule(getVmsToDatacentersMap().get(task.getVmId()), delay, CloudSimTags.CLOUDLET_SUBMIT, task);
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SimLogger.getInstance().taskAssigned(task.getCloudletId(),
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selectedVM.getHost().getDatacenter().getId(),
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selectedVM.getHost().getId(),
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selectedVM.getId(),
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vmType);
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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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private Task createTask(EdgeTask 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.mobileDeviceId, ++taskIdCounter,
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edgeTask.length, edgeTask.pesNumber,
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edgeTask.inputFileSize, edgeTask.outputFileSize,
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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.taskType);
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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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