cloudsim 学习笔记 实例6.doc

* Title: CloudSim Toolkit * Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation * of Clouds * Licence: GPL - /copyleft/gpl.html * * Copyright (c) 2009, The University of Melbourne, Australia */【试验六：怎样创建扩展的仿真】package org.cloudbus.cloudsim.examples;import java.text.DecimalFormat; 【处理文本、日期、数字和消息的类和接口】【十进制格式】import java.util.ArrayList; 【Java的实用工具类库java.util包】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 visioners.BwProvisionerSimple;import visioners.PeProvisionerSimple;import visioners.RamProvisionerSimple;/* * An example showing how to create * scalable simulations. */public class CloudSimExample6 /* The cloudlet list. */ 【云任务列表】private static List cloudletList;/* The vmlist. */ 【虚拟机列表】private static List vmlist;private static List createVM(int userId, int vms) 【创建一个容器储存虚拟机，之后提交给代理】/Creates a container to store VMs. This list is passed to the broker laterLinkedList list = new LinkedList();/VM Parameters 【虚拟机参数】long size = 10000; /image size (MB)int ram = 512; /vm memory (MB)int mips = 250;long bw = 1000;int pesNumber = 1; /number of cpusString vmm = Xen; /VMM name/create VMs 【创建虚拟机】Vm vm = new Vmvms;for(int i=0;ivms;i+)vmi = new Vm(i, userId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared(); 【云任务时间共享】/for creating a VM with a space shared scheduling policy for cloudlets:/vmi = Vm(i, userId, mips, pesNumber, ram, bw, size, priority, vmm, new CloudletSchedulerSpaceShared();【云任务空间共享】list.add(vmi);return list;【创建一个容器储存云任务】private static List createCloudlet(int userId, int cloudlets)/ Creates a container to store CloudletsLinkedList list = new LinkedList();/cloudlet parameters 【云任务属性】long length = 4000;long fileSize = 300;long outputSize = 300;int pesNumber = 1;UtilizationModel utilizationModel = new UtilizationModelFull();Cloudlet cloudlet = new Cloudletcloudlets;for(int i=0;icloudlets;i+)cloudleti = new Cloudlet(i, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);/ setting the owner of these Cloudlets 【云任务设置相应的用户】cloudleti.setUserId(userId); list.add(cloudleti);return list;/ STATIC METHODS / 【静态方法】/* * Creates main() to run this example */ 【主函数运行实例】public static void main(String args) Log.printLine(Starting CloudSimExample6.);try / First step: Initialize the CloudSim package. It should be called/ before creating any num_user = 1; / number of grid users 【应该是云用户吧，怎么出来了网格用户！】Calendar calendar = Calendar.getInstance();boolean trace_flag = false; / mean trace events/ Initialize the CloudSim libraryCloudSim.init(num_user, calendar, trace_flag);/ Second step: Create Datacenters 【创建数据中心 2个数据中心】/Datacenters are the resource providers in CloudSim. We need at list one of them to run a CloudSim simulationDatacenter datacenter0 = createDatacenter(Datacenter_0);Datacenter datacenter1 = createDatacenter(Datacenter_1);/Third step: Create Broker 【创建代理】DatacenterBroker broker = createBroker();int brokerId = broker.getId();/Fourth step: Create VMs and Cloudlets and send them to brokervmlist = createVM(brokerId,20); /creating 20 vms 【创建20个虚拟机】cloudletList = createCloudlet(brokerId,40); / creating 40 cloudlets 【创建40个云任务】broker.submitVmList(vmlist);broker.submitCloudletList(cloudletList);/ Fifth step: Starts the simulation 【开始仿真】CloudSim.startSimulation();/ Final step: Print results when simulation is over 【仿真结束 打印结果】List newList = broker.getCloudletReceivedList();CloudSim.stopSimulation();printCloudletList(newList);/Print the debt of each user to each datacenter 【打印账单】datacenter0.printDebts();datacenter1.printDebts();Log.printLine(CloudSimExample6 finished!);catch (Exception e)e.printStackTrace();Log.printLine(Unwanted errors happen);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 【创建列表储存机器】/ MachinesList hostList = new ArrayList();/ 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 peList1 = new ArrayList();int mips = 1000;/ 3. Create PEs and add these into the list./for a quad-core machine, a list of 4 PEs is required: 【4个PE】peList1.add(new Pe(0, new PeProvisionerSimple(mips); / need to store Pe id and MIPS RatingpeList1.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 【双核 2个PE】List peList2 = new ArrayList();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 【创建主机】int hostId=0;int ram = 2048; /host memory (MB)long storage = 1000000; /host storageint bw = 10000;hostList.add( new Host( hostId, new RamProvisionerSimple(ram), new BwProvisionerSimple(bw), storage, peList1, new VmSchedulerTimeShared(peList1) 【虚拟机时间共享】 ) ); / This is our first machinehostId+;hostList.add( new Host( hostId, new RamProvisionerSimple(ram), new BwProvisionerSimple(bw), storage, peList2, new VmSchedulerTimeShared(peList2) 【虚拟机时间共享】 ) ); / Second machine【虚拟机空间共享 采用以下方法】/To create a host with a space-shared allocation policy for PEs to VMs:/hostList.add( /new Host( /hostId, /new CpuProvisionerSimple(peList1), /new RamProvisionerSimple(ram), /new BwProvisionerSimple(bw), /storage, /new VmSchedulerSpaceShared(peList1) /) /);/To create a host with a oportunistic space-shared allocation policy for PEs to VMs:/hostList.add( /new Host( /hostId, /new CpuProvisionerSimple(peList1), /new RamProvisionerSimple(ram), /new BwProvisionerSimple(bw), /storage, /new VmSchedulerOportunisticSpaceShared(peList1) /) /);/ 5. Create a DatacenterCharacteristics object that stores the 【创建数据中心特征对象】/ 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 architectureString os = Linux; / operating systemString vmm = Xen;double time_zone = 10.0; / time zone this resource locateddouble cost = 3.0; / the cost of using processing in this resourcedouble costPerMem = 0.05;/ the cost of using memory in this resourcedouble costPerStorage = 0.1;/ the cost of using storage in this resourcedouble costPerBw = 0.1;/ the cost of using bw in this resourceLinkedList storageList = new LinkedList();/we are not adding SAN devices by nowDatacenterCharacteristics characteristics = new DatacenterCharacteristics( arch, os, vmm, hostList, time_zone, cost, costPerMem, costPerStorage, costPerBw);/ 6. Finally, we need to create a PowerDatacenter object. 【创建数据中心对象】Datacenter datacenter = null;try datacenter = new Datacenter(name, characteristics, new VmAllocationPolicySimple(hostList), storageList, 0); catch (Exception e) e.printStackTrace();return datacenter;【创建代理，可以根据特定需求发展自己的代理协议来提交虚拟机和云任务】/We strongly encourage users to develop their own broker policies, to submit vms and cloudlets according/to the specific rules of the simulated scenarioprivate 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 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 + dft.format(cloudlet.getExecStartTime()+ indent + indent + indent + dft.format(cloudlet.getFinishTime();仿真结果Starting CloudSimExample6.Initialising.Starting CloudSim version 2.0Datacenter_0 is starting.Datacenter_1 is starting.Broker is starting.Entities started.0.0: Broker: Cloud Resource List received with 2 resource(s)【2个数据中心】0.0: Broker: Trying to Create VM #0 in Datacenter_00.0: Broker: Trying to Create VM #1 in Datacenter_00.0: Broker: Trying to Create VM #2 in Datacenter_00.0: Broker: Trying to Create VM #3 in Datacenter_00.0: Broker: Trying to Create VM #4 in Datacenter_00.0: Broker: Trying to Create VM #5 in Datacenter_00.0: Broker: Trying to Create VM #6 in Datacenter_00.0: Broker: Trying to Create VM #7 in Datacenter_00.0: Broker: Trying to Create VM #8 in Datacenter_00.0: Broker: Trying to Create VM #9 in Datacenter_00.0: Broker: Trying to Create VM #10 in Datacenter_00.0: Broker: Trying to Create VM #11 in Datacenter_00.0: Broker: Trying to Create VM #12 in Datacenter_00.0: Broker: Trying to Create VM #13 in Datacenter_00.0: Broker: Trying to Create VM #14 in Datacenter_00.0: Broker: Trying to Create VM #15 in Datacenter_00.0: Broker: Trying to Create VM #16 in Datacenter_00.0: Broker: Trying to Create VM #17 in Datacenter_00.0: Broker: Trying to Create VM #18 in Datacenter_00.0: Broker: Trying to Create VM #19 in Datacenter_0Allocation of VM #6 to Host #0 failed by RAMAllocation of VM #7 to Host #0 failed by RAMAllocation of VM #8 to Host #0 failed by RAMAllocation of VM #8 to Host #1 failed by RAMAllocation of VM #9 to Host #0 failed by RAMAllocation of VM #9 to Host #1 failed by RAMAllocation of VM #10 to Host #0 failed by RAMAllocation of VM #10 to Host #1 failed by RAMAllocation of VM #11 to Host #0 failed by RAMAllocation of VM #11 to Host #1 failed by RAMAllocation of VM #12 to Host #0 failed by RAMAllocation of VM #12 to Host #1 failed by RAMAllocation of VM #13 to Host #0 failed by RAMAllocation of VM #13 to Host #1 failed by RAMAllocation of VM #14 to Host #0 failed by RAMAllocation of VM #14 to Host #1 failed by RAMAllocation of VM #15 to Host #0 failed by RAMAllocation of VM #15 to Host #1 failed by RAMAllocation of VM #16 to Host #0 failed by RAMAllocation of VM #16 to Host #1 failed by RAMAllocation of VM #17 to Host #0 failed by RAMAllocation of VM #17 to Host #1 failed by RAMAllocation of VM #18 to Host #0 failed by RAMAllocation of VM #18 to Host #1 failed by RAMAllocation of VM #19 to Host #0 failed by RAMAllocation of VM #19 to Host #1 failed by RAM0.0: Broker: VM #0 has been created in Datacenter #2, Host #00.0: Broker: VM #1 has been created in Datacenter #2, Host #00.0: Broker: VM #2 has been created in Datacenter #2, Host #00.0: Broker: VM #3 has been created in Datacenter #2, Host #10.0: Broker: VM #4 has been created in Datacenter #2, Host #00.0: Broker: VM #5 has been created in Datacenter #2, Host #10.0: Broker: VM #6 has been created in Datacenter #2, Host #10.0: Broker: VM #7 has been created in Datacenter #2, Host #10.0: Broker: Creation of VM #8 failed in Datacenter #20.0: Broker: Creation of VM #9 failed in Datacenter #20.0: Broker: Creation of VM #10 failed in Datacenter #20.0: Broker: Creation of VM #11 failed in Datacenter #20.0: Broker: Creation of VM #12 failed in Datacenter #20.0: Broker: Creation of VM #13 failed in Datacenter #20.0: Broker: Creation of VM #14 failed in Datacenter #20.0: Broker: Creation of VM #15 failed in Datacenter #20.0: Broker: Creation of VM #16 failed in Datacenter #20.0: Broker: Creation of VM #17 failed in Datacenter #20.0: Broker: Creation of VM #18 failed in Datacenter #20.0: Broker: Creation of VM #19 failed in Datacenter #20.0: Broker: Trying to Create VM #8 in Datacenter_10.0: Broker: Trying to Create VM #9 in Datacenter_10.0: Broker: Trying to Create VM #10 in Datacenter_10.0: Broker: Trying to Create VM #11 in Datacenter_10.0: Broker: Trying to Create VM #12 in Datacenter_10.0: Broker: Trying to Create VM #13 in Datacenter_10.0: Broker: Trying to Create VM #14 in Datacenter_10.0: Broker: Trying to Create VM #15 in Datacenter_10.0: Broker: Trying to Create VM #16 in Datacenter_10.0: Broker: Trying to Create VM #17 in Datacenter_10.0: Broker: Trying to Create VM #18 in Datacenter_10.0: Broker: Trying to Create VM #19 in Datacenter_1Allocation of VM #14 to Host #0 failed by RAMAllocation of VM #15 to Host #0 failed by RAMAllocation of VM #16 to Host #0 failed by RAMAllocation of VM #16 to Host #1 failed by RAMAllocation of VM #17 to Host #0 failed by RAMAllocation of VM #17 to Host #1 failed by RAMAllocation of VM #18 to Host #0 failed by RAMAllocation of VM #18 to Host #1 failed by RAMAllocation of VM #19 to Host #0 failed by RAMAllocation of VM #19 to Host #1 failed by RAM0.0: Broker: VM #8 has been created in Datacenter #3, Host #00.0: Broker: VM #9 has been created in Datacenter #3, Host #00.0: Broker: VM #10 has been created in Datacenter #3, Host #00.0: Broker: VM #11 has been created in Datacenter #3, Host #10.0: Broker: VM #12 has been created in Datacenter #3, Host #00.0: Broker: VM #13 has been created in Datacenter #3, Host #10.0: Broker: VM #14 has been created in Datacenter #3, Host #10.0: Broker: VM #15 has been created in Datacenter #3, Host #10.0: Broker: Creation of VM #16 failed in Datacenter #30.0: Broker: Creation of VM #17 failed in Datacenter #30.0: Broker: Creation of VM #18 failed in Datacenter #30.0: Broker: Creation of VM #19 failed in Datacenter #30.0: Broker: Sending cloudlet 0 to VM #00.0: Broker: Sending cloudlet 1 to VM #10.0: Broker: Sending cloudlet 2 to VM #20.0: Broker: Sending cloudlet 3 to VM #30.0: Broker: Sending cloudlet 4 to VM #40.0: Broker: Sending cloudlet 5 to VM #50.0: Broker: Sending cloudlet 6 to VM #60.0: Broker: Sending cloudlet 7 to VM #70.0: Broker: Sending cloudlet 8 to VM #80.0: Broker: Sending cloudlet 9 to VM #90.0: Broker: Sending cloudlet 10 to VM #100.0: Broker: Sending cloudlet 11 to VM #110.0: Broker: Sending cloudlet 12 to VM #120.0: Broker: Sending cloudlet 13 to VM #130.0: Broker: Sending cloudlet 14 to VM #140.0: Broker: Sending cloudlet 15 to VM #150.0: Broker: Sending cloudlet 16 to VM #00.0: Broker: Sending cloudlet 17 to VM #10.0: Broker: Sending cloudlet 18 to VM #20.0: Broker: Sending cloudlet 19 to VM #30.0: Broker: Sending cloudlet 20 to VM #40.0: Broker: Sending cloudlet 21 to VM #50.0: Broker: Sending cloudlet 22 to VM #60.0: Broker: Sending cloudlet 23 to VM #70.0: Broker: Sending cloudlet 24 to VM #80.0: Broker: Sending cloudlet 25 to VM #90.0: Broker: Sending cloudlet 26 to VM #100.0: Broker: Sending cloudlet 27 to VM #110.0: Broker: Sending cloudlet 28 to VM #120.0: Broker: Sending cloudlet 29 to VM #130.0: Broker: Sending cloudlet 30 to VM #140.0: Broker: Sending cloudlet 31 to VM #150.0: Broker: Sending cloudlet 32 to VM #00.0: Broker: Sending cloudlet 33 to VM #10.0: Broker: Sending cloudlet 34 to VM #20.0: Broker: Sending cloudlet 35 to VM #30.0: Broker: Sending cloudlet 36 to VM #40.0: Broker: Sending cloudlet 37 to VM #50.0: Broker: Sending cloudlet 38 to VM #60.0: Broker: Sending cloudlet 39 to VM #732.0: Broker: Cloudlet 8 received32.0: Broker: Cloudlet 24 received32.0: Broker: Cloudlet 9 received32.0: Broker: Cloudlet 25