How to find cpu Utilization of host ?

[Binal Parekh]

i create one simple program in cloudsim which having a number of hosts , vms and cloudlets now i want to find out cpu utilization of hosts the how to use getutilizationofcpu method for host in cloudsim .. and i used this method get utilization of cpu but it only return 0 ..

vm utilization count same as host utilization in cloudsim.. is correct?

any help appreciate...plz help me 

this is my code

public double getTotalUtilizationOfCpu(double time) {

          double util = 0;

for (int i = 0; i <vmsNumber; i++) 

                {

Vm vm;

                        vm=vmList.get(i);

                         // vm.updateVmProcessing(CloudSim.clock(), null);

                         //double k = vm.getRam();

                       Log.printLine(" VM id is :"+ vm.getId()+ "its ram is "+vm.getRam() +"its MIPS:" +vm.getMips() +"its BW is:"+vm.getBw());

                         //double a=vm.getTotalUtilizationOfCpuMips(time);

                        //Log.printLine(" mips utilization is :"+ "   "+a);

util= vm.getTotalUtilizationOfCpu(CloudSim.clock());

                       Log.printLine(" VMid is :"+ vm.getId() +" utilization is : "+util);

                        

                }

  return util;

       }

[Manoel Campos]

Hello,

I haven't had success with this too. The class Vm has a stateHistory attribute.

Looking at CloudSim code, this state is supposed to be updated by a HostDynamicWorkload host.

However, no entries are being added to the stateHistory list of the VM.

But I think this is to be the way to do what you want, however, 

there may be some issue with this feature that needs to be assessed.

The example below gives you one idea of how that feature is supposed to work.

It uses a HostDynamicWorkload host instead of the Host.

See the showCpuUtilizationForAllHosts method and the others it calls.

https://gist.github.com/manoelcampos/7e2bdcb64331bd85947a

I hope it can help in any way.

Manoel Campos da Silva Filho Developer and Systems Analyst
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

--

---
You received this message because you are subscribed to the Google Groups "cloudsim" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cloudsim+u...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Binal Parekh]

thank you so much sir

but it is based on usage history so i get no usage history output

--

---
You received this message because you are subscribed to a topic in the Google Groups "cloudsim" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/cloudsim/MVVXolbAgVc/unsubscribe.
To unsubscribe from this group and all its topics, send an email to cloudsim+u...@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

Thank you  

Binal Parekh

[Manoel Campos]

Yes, it is what I mean. The history is not being updated, always returning zero for any time you give.

Anyway, there is a HostStateHistoryClass and and stateHistory list direct in the HostDynamicWorkload class.

The new example below shows how to use it, however, it always returns 0.

https://gist.github.com/manoelcampos/8a7016b319046edbe4e6

Manoel Campos da Silva Filho Developer and Systems Analyst
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

thank you sir

that means we cant find host utilization without its usage history.. 

[Binal Parekh]

i want to know 

 methods getUtilizationOfCpu() , getTotalUtilizationOfCpu() (which methods that already available)

using this methods can we find utilization of host ?

[Binal Parekh]

i want to know 

 methods getUtilizationOfCpu() , getTotalUtilizationOfCpu() (which methods that already available)

using this methods can we find utilization of host ?

so if  possible then i will use this all methods instead of usage history

[Manoel Campos]

Well, you said that the approach you tried always returned 0.

How I had seen the history attributes in some classes, I decided to try using them.

But in fact, the vm.getUtilizationOfCpu worked for me. 

See at https://gist.github.com/manoelcampos/3dc9db6d16867153d76f

Manoel Campos da Silva Filho Developer and Systems Analyst
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

thank you soo much sir..

i try all examples which u sent but  my program have some bugs at Cloudsim.startsimulation it stop working but i will try this also 

[Binal Parekh]

i got this type of error  

at org.cloudbus.cloudsim.core.SimEntity.run(SimEntity.java:406)

at org.cloudbus.cloudsim.core.CloudSim.runClockTick(CloudSim.java:518)

at org.cloudbus.cloudsim.core.CloudSim.run(CloudSim.java:882)

at org.cloudbus.cloudsim.core.CloudSim.startSimulation(CloudSim.java:188)

at csim1.csim1.main(csim1.java:98)

[Manoel Campos]

The error log is incomplete.

But maybe you aren't using the latest version of CloudSim, because I run without problem.

Manoel Campos da Silva Filho Developer and Systems Analyst
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

--

[Binal Parekh]

i am getting error at

Cloudsim.Startsimulator

NullPointerException is there  

[Manoel Campos]

Run the example with the latest cloudsim version.

Manoel Campos da Silva Filho Developer and Systems Analyst
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

--

[Bhuvan Soni]

I am cloudsim 3.0.3

---

From: Manoel Campos
Sent: ‎2/‎6/‎2016 11:30 PM
To: clou...@googlegroups.com
Subject: Re: How to find cpu Utilization of host ?

You received this message because you are subscribed to a topic in the Google Groups "cloudsim" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/cloudsim/MVVXolbAgVc/unsubscribe.
To unsubscribe from this group and all its topics, send an email to cloudsim+u...@googlegroups.com.

[Binal Parekh]

Respected sir,

i m working on to minimize the power consumption in datacenter...someone told this not possible in cloudsim but i have very less time i have to do this 

but my first step is to find host over utilized or under utilized if it <30 then it under utilized make array of them that numbers of array of host are underutilized 

here i put my code sir .. i vry frustrated with all i didnt get any solution and didnt understand what wrongs things i did

package org.cloudbus.cloudsim.examples.power;

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;

import org.cloudbus.cloudsim.CloudletSchedulerDynamicWorkload;

import org.cloudbus.cloudsim.DatacenterBroker;

import org.cloudbus.cloudsim.DatacenterCharacteristics;

import org.cloudbus.cloudsim.Log;

import org.cloudbus.cloudsim.Pe;

import org.cloudbus.cloudsim.Storage;

import org.cloudbus.cloudsim.UtilizationModelStochastic;

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.power.PowerDatacenter;

import org.cloudbus.cloudsim.power.PowerHost;

import org.cloudbus.cloudsim.power.models.PowerModelLinear;

import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;

import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;

import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

public class Csim4 {

/** The cloudlet list. */

private static List<Cloudlet> cloudletList;

/** The vm list. */

private static List<Vm> vmList;

        private static List<PowerHost> hostList;

//private static double utilizationThreshold = 0.8;

private static final double hostsNumber = 2;

private static final double vmsNumber = 5;

private static final double cloudletsNumber = 5;

               

        private static List<Storage> storageList;

/**

 * Creates main() to run this example.

 *

 * @param args the args

 */

public static void main(String[] args) {

Log.printLine("Starting  example...");

                Csim4 n = new Csim4();

                     n.getNumberOfHosts();

try {

// First step: Initialize the CloudSim package. It should be called

// before creating any entities. We can't run this example without

// initializing CloudSim first. We will get run-time exception

// error.

int num_user = 1; // number of cloud users

Calendar calendar = Calendar.getInstance();

boolean trace_flag = false; // mean trace GridSim 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

//

                    // PowerDatacenter datacenter = createDatacenter("Datacenter_0");

                       //  PowerDatacenter datacenter = (PowerDatacenter) createDatacenter(

//"Datacenter0",

//PowerDatacenter.class);

                        

                    PowerDatacenter datacenter0 = (PowerDatacenter) createDatacenter("Datacenter_0");

                   // System.out.println("power:" +datacenter0.getPower());

                    

// Third step: Create Broker

DatacenterBroker broker = createBroker();

int brokerId = broker.getId();

// Fourth step: Create one virtual machine

vmList = createVms(brokerId);

                        

// submit vm list to the broker

broker.submitVmList(vmList);

// Fifth step: Create one cloudlet

cloudletList = createCloudletList(brokerId);

                        //cloudletList.add(cloudlet);

// submit cloudlet list to the broker

broker.submitCloudletList(cloudletList);

CloudSim.startSimulation();

                       

                    System.out.println("hello............");

                     List<Cloudlet> newList = broker.getCloudletReceivedList();

                   Log.printLine("Received..... " + newList.size() + " cloudlets....");

                         CloudSim.stopSimulation();

                        

                        printCloudletList(newList);

                        Log.printLine("cloudsim example finished");

                        

           

  

  

} catch (Exception e) {

Log.printLine("Unwanted errors happen");

}

                

               

//Log.printLine("SingleThreshold finished!");

              // if(host.getUtilizationOfCpu()<=30)

                      //  {

                            

                       // }

           

            //System.out.println("print this");

}

     

         

/**

 * Creates the cloudlet list.

 *

 * @param brokerId the broker id

 *

 * @return the cloudlet list

 */

private static List<Cloudlet> createCloudletList(int brokerId) {

List<Cloudlet> list = new ArrayList<Cloudlet>();

long length = 80000; // 10 min on 250 MIPS

int pesNumber = 1;

long fileSize = 300;

long outputSize = 300;

for (int i = 0; i < cloudletsNumber; i++) {

Cloudlet cloudlet = new Cloudlet(i, length, pesNumber, fileSize, outputSize, new UtilizationModelStochastic(), new UtilizationModelStochastic(), new UtilizationModelStochastic());

cloudlet.setUserId(brokerId);

cloudlet.setVmId(i);

list.add(cloudlet);

                        System.out.println("display" +(cloudlet.getUtilizationOfCpu(i)) +" _get vm id" +cloudlet.getVmId());

}

return list;

}

/**

 * Creates the vms.

 *

 * @param brokerId the broker id

 *

 * @return the list< vm>

 */

private static List<Vm> createVms(int brokerId) {

List<Vm> vms = new ArrayList<Vm>();

// VM description

int[] mips = {100, 150, 200, 250}; // MIPSRating

               // int mips = 250;

int pesNumber = 1; // number of cpus

int ram = 256; // vm memory (MB)

long bw = 2000; // bandwidth

long size = 2000; // image size (MB)

String vmm = "Xen"; // VMM name

for (int i = 0; i < vmsNumber; i++) {

vms.add(

new Vm(i, brokerId, mips[i % mips.length], pesNumber, ram, bw, size, vmm, new CloudletSchedulerDynamicWorkload(mips[i%mips.length], pesNumber))

);

}

                

return vms;

}

/**

 * Creates the datacenter.

 *

 * @param name the name

 *

 * @return the datacenter

 *

 * @throws Exception the exception

 */

private static PowerDatacenter createDatacenter(String name) throws Exception {

// Here are the steps needed to create a PowerDatacenter:

// 1. We need to create an object of HostList2 to store

// our machine

ArrayList<PowerHost> hostList = new ArrayList<PowerHost>();

double maxPower = 250; // 250W

double staticPowerPercent = 0.7; // 70%

int[] mips = { 1000, 2000, 3000 };

               // int mips=1000;

int ram = 10000; // host memory (MB)

long storage = 1000000; // host storage

int bw = 100000;

for (int i = 0; i < hostsNumber; i++) {

// 2. A Machine contains one or more PEs or CPUs/Cores.

// In this example, it will have only one core.

// 3. Create PEs and add these into an object of PowerPeList.

List<Pe> peList = new ArrayList<Pe>();

peList.add(new Pe(0, new PeProvisionerSimple(mips[i%mips.length]))); // need to store PowerPe id and MIPS Rating

// 4. Create PowerHost with its id and list of PEs and add them to the list of machines

hostList.add(

new PowerHost(

i,

new RamProvisionerSimple(ram),

new BwProvisionerSimple(bw),

storage,

peList,

new VmSchedulerTimeShared(peList), 

new PowerModelLinear(maxPower, staticPowerPercent)

)

); // This is our machine

}

                

                

// 5. Create a DatacenterCharacteristics object that stores the

// properties of a Grid resource: architecture, OS, list of

// Machines, allocation policy: time- or space-shared, time zone

// and its price (G$/PowerPe 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

DatacenterCharacteristics characteristics = new DatacenterCharacteristics(

arch, os, vmm, hostList, time_zone, cost, costPerMem, costPerStorage, costPerBw);

// 6. Finally, we need to create a PowerDatacenter object.

                PowerDatacenter datacenter = null;

try {

//RoundRobinVmAllocationPolicy vm_policy = new RoundRobinVmAllocationPolicy(hostList);

datacenter = new PowerDatacenter(name, 

characteristics,

new VmAllocationPolicySimple(hostList), 

storageList, 

0.5);

} catch (Exception e) {

}

return datacenter;

}

        public double getNumberOfHosts()

        { 

            

            System.out.println("hostNumber :"+ hostsNumber);

               

          return 0;

        }

        

        public List<PowerHost> getHostList() {

            return hostList;

}

                

      

   // public static double getHostCpuUtilization(PowerHost host) {

      //  double cpuUtilization = host.getAvailableMips();

      //  System.out.println("cpu................................"+cpuUtilization);

         //   return cpuUtilization;

   /// }

// submit vms and cloudlets according

// to the specific rules of the simulated scenario

/**

 * Creates the broker.

 *

 * @return the datacenter broker

 */

     

private static DatacenterBroker createBroker() {

DatacenterBroker broker = null;

try {

broker = new DatacenterBroker("Broker");

} catch (Exception e) {

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 = "\t";

Log.printLine();

Log.printLine("========== OUTPUT ==========");

Log.printLine("Cloudlet ID" + indent + "STATUS" + indent

+ "Resource 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());

if (cloudlet.getCloudletStatus() == Cloudlet.SUCCESS) {

Log.printLine(indent + "SUCCESS"

+ indent + indent + cloudlet.getResourceId()

+ indent + cloudlet.getVmId()

+ indent + dft.format(cloudlet.getActualCPUTime())

+ indent + dft.format(cloudlet.getExecStartTime())

+ indent + indent + dft.format(cloudlet.getFinishTime())

);

                                

}

}

}

}

sir if possiblle then plz give suggestion what to do how to do .

I am really thankful to you if you can provide me any help possible

i am using cloudsim 3.0.3

[Manoel Campos]

Well, I finished studying CloudSim documentation and I saw there is a lot of different classes in the package org.cloudbus.cloudsim.power that determine host over utilization applying different methods.

You can start by seeing the abstract class PowerVmAllocationPolicyMigrationAbstract and its subclasses.

The method isHostOverUtilized in the subclasses applies different techniques to detect host overutilization.

See the other message I just posted about cloudsim documentation update and get the new cloudsim version.

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

thank you sir

cloudsim 3.0.3. is not latest version??

sir criteria for overutilization or under utilized host is decided but first i have to find host utilization but getUtilizationOfHost() is alwys return 0 

and if i use power datacenter start.simulation gave me nullpointerException 

[Manoel Campos]

I updated the entire cloudsim documentation. A pull request was merged today. 

The version may continue as 3.0.3, but the entire documentation has changed.

So, if you want more detailed documentation, is better to download cloudsim again

at the official git repository: https://github.com/Cloudslab/cloudsim

About the host utilization, see this example:

https://gist.github.com/manoelcampos/3dc9db6d16867153d76f

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

i used that latest version still i have the same  error ..

sir, how to use powerdatacenter is it true just replace our datacenter with powerdatacenter and powerhost 

because in my program if i use power datacenter then error generate and it terminate my simulation after some code run 

[Manoel Campos]

Probably you have to use PowerDataCenter, PowerHost and PowerVM. 

But I haven't worked with theses classes yet.

If you post the entire error stack trace, I can try to figure out what the problem is. 

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

--

[Binal Parekh]

yes sir ... i used that and finally i got results .. thank you soo much sir for your help

--

---
You received this message because you are subscribed to a topic in the Google Groups "cloudsim" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/cloudsim/MVVXolbAgVc/unsubscribe.
To unsubscribe from this group and all its topics, send an email to cloudsim+u...@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

[Manoel Campos]

You're welcome.

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

sir i want to know

i am using powerdatacenter it directly gives host utilization in each every time frame 

i want to store that host utilization in particular array .. is it possible??

[Manoel Campos]

Well, if you navigate through the method calls using some IDE, you can see that, in fact, the time

is being ignored for the common used UtilizationModelFull class. The last call is to the method getUtilization of a class implementing the UtilizationModel interface.

An UtilizationModel object is used when instantiating a cloudlet, to define how it will use resources such as RAM, CPU or BW. The UtilizationModelFull assumes that the resource to it is assigned is being consumed 100% of its capacity all the time. So, assigning such an instance to the cloudlet CPU utilization, it will use all its CPU all the time. Thus, the time parameter of the method getUtilization of the UtilizationModel interface will be ignored for the UtilizationModelFull implementation.

Usually, you have to create a implementation of this interface to define your resource utilization model. The UtilizationModelPlanetLabInMemory class, for instance, uses a PlanetLab trace file to determine resource utilization. There, the time parameter is in fact being used.

Other implementations such as UtilizationModelStochastic, defines the resource usage randomly. 

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

300.10: [Host #4] utilization at 0.00 was 0.00%, now is 6.75%

under utilized host...[6.751558797246508]

300.10: [Host #4] energy is 0.00 W*sec

300.10: [Host #5] utilization at 0.00 was 0.00%, now is 6.94%

under utilized host...[6.941921885950228]

300.10: [Host #5] energy is 0.00 W*sec

300.10: [Host #6] utilization at 0.00 was 0.00%, now is 37.58%

under utilized host...[]

300.10: [Host #6] energy is 0.00 W*sec

300.10: [Host #7] utilization at 0.00 was 0.00%, now is 8.02%

under utilized host...[8.019334149642603]

300.10: [Host #7] energy is 0.00 W*sec

300.10: Data center's energy is 0.00 W*sec

.............................

java.lang.NullPointerException

at org.cloudbus.cloudsim.power.PowerDatacenter.updateCloudetProcessingWithoutSchedulingFutureEventsForce(PowerDatacenter.java:267)

at org.cloudbus.cloudsim.power.PowerDatacenter.updateCloudletProcessing(PowerDatacenter.java:106)

at org.cloudbus.cloudsim.Datacenter.processEvent(Datacenter.java:253)

at org.cloudbus.cloudsim.core.SimEntity.run(SimEntity.java:406)

at org.cloudbus.cloudsim.core.CloudSim.runClockTick(CloudSim.java:518)

at org.cloudbus.cloudsim.core.CloudSim.run(CloudSim.java:882)

at org.cloudbus.cloudsim.core.CloudSim.startSimulation(CloudSim.java:188)

at org.cloudbus.cloudsim.power.Csim_4.main(Csim_4.java:84)

Unwanted errors happen

My example finished!

m getting this type of error 

[Manoel Campos]

Follow the stack trace and discover the exact line of code of what method and class the error is occurring.

Post the code snippet here and tell from what method and class the error come that I try to help you.

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

thank you sir 

my goal is to minimize the working host maximize sleepy host using live migration for that migration i want cloudlet utilization on vm and host utilization at once place ..i making changes in powerdatacenter class when i will apply algo for migration.i make changes in power datacenter class but i give error null pointer exception 

protected void updateCloudletProcessing() {

if (getCloudletSubmitted() == -1 || getCloudletSubmitted() == CloudSim.clock()) {

CloudSim.cancelAll(getId(), new PredicateType(CloudSimTags.VM_DATACENTER_EVENT));

schedule(getId(), getSchedulingInterval(), CloudSimTags.VM_DATACENTER_EVENT);

return;

}

double currentTime = CloudSim.clock();

// if some time passed since last processing

if (currentTime > getLastProcessTime()) {

System.out.print(currentTime + " ");

List<Double> try1 = updateCloudetProcessingWithoutSchedulingFutureEventsForce();

for(PowerHost host:this.<PowerHost>getHostList())

{

if(currentTime>0)

{

utilizationOfCpu = host.getUtilizationOfCpu();

///int W= (100- (int)utilizationOfCpu);

Log.printLine("Host_utilization=["+utilizationOfCpu*100+"]"+"at host [#"+host.getId()+"]"+ "...at current time["+currentTime +"]");

//Log.printLine("W="+W);

if(utilizationOfCpu==0.0)

{

Log.printLine("0 utilizatio host has power=["+host.getEnergyLinearInterpolation(0,utilizationOfCpu , currentTime)+"]");

}

}

}

Log.printLine("cloudlet utilization"+Csim_4.cloudlet_utilization);

for(PowerHost host:this.<PowerHost>getHostList())

{

for(PowerVm vm:host.<PowerVm>getVmList())

{

double vm_utilization = vm.getTotalUtilizationOfCpu(currentTime);

Log.printLine("VM utilization@@@@@@["+vm_utilization+"]"+"at host[#"+host.getId()+"]");

Log.printLine("cloudlet submitted&["+vm.getCloudletScheduler()+"]"+"atVm[#"+vm.getId()+"]");

}

}

double Total_weight= 100.00;

Log.printLine("total number of Under_utilized host="+UnderHosts.size());

UnderHosts.sort();

}

}

[Manoel Campos]

I think we are using different versions of CloudSim, so I couldn't track the error.

You have to highlight the exact line in this code where the exception is thrown, so I can try to figure out the problem.

Manoel Campos da Silva Filho Professor and Software Engineer
manoel...@gmail.com | www.manoelcampos.com

Professor at Federal Institute of Education, Science and Technology of Tocantins - Brazil
Computer Science and Engineering PhD Student at University of Beira Interior - Portugal

 about.me

[Binal Parekh]

sir can you help me for vm migration from one host to another ?

[Viswa nathan]

Can any one pleases send me the code for using powerdatacenter powervm and powerhost

[Viswa nathan]

Whether we can just modify the vm host and datacenter as Powervm powerhost powerdataceter,,,

if we modify like this is it run without the error

[Binal Parekh]

here i am sending file which use power datacenter power host and power vm