CloudSim is a framework for modeling and simulation of Cloud Computing Infrastructures and Services.
Questions tagged [cloudsim]
94 questions
5
votes
2 answers
Load Balancing CloudSim
I have been recently trying to work on Cloud Computing as a part of my College assignment.
I have been trying to implement a new Load Balancing algorithm, (which has been proposed in some research paper) using CloudSim.
Please help me out with this…
user007
- 2,156
- 2
- 20
- 35
3
votes
2 answers
How change task priority in cloudsim?
I change task priorities based my algorithm now I want gives this tasks to vms , How I can do it in cloudsim?
Sara tabaghchi
- 111
- 10
2
votes
1 answer
CloudSim - Cpu Utilization
Can anyone explain the real difference between these two methods
vm.getTotalUtilizationOfCpu(CloudSim.clock());
and
cloudlet.getUtilizationOfCpu(CloudSim.clock());
Thanks in advance
Nemah Awad
- 29
- 4
2
votes
1 answer
Is there any way to find out number of cloudlet on a specific VM in cloudsim?
Is there any way to find out number of cloudlet on VM in cloudsim?
ly0905
- 41
- 2
2
votes
1 answer
CloudSim - Understanding Basic Simulation Results
In this famous paper Modeling and simulation of scalable Cloud computing environments and the CloudSim toolkit: Challenges and opportunities
The author presented in Figure 9 and 10 a very unclear and explained graphs
In both figures 50 task were…
130wde
- 49
- 8
2
votes
4 answers
Submit cloudlet task by some delay
I'm working on Cloudsim. How can I delay the cloudlet submission by 30 seconds? After the first cloudlet is submitted after 30 seconds, the second cloudlet has to start the execution.
Is there any way to do this?
anil Kumar
- 31
- 4
1
vote
0 answers
CloudsimSDN Error while running example file given in github
Command run:
java -cp cloudsimsdn-1.0-with-dependencies.jar org.cloudbus.cloudsim.sdn.example.SDNExample MFF ../dataset-energy/energy-physical.json ../dataset-energy/energy-virtual.json ../dataset-energy/energy-workload.csv >…
AKB
- 11
- 1
1
vote
0 answers
Cloudsim- How to calculate totalCurrentRequestedRam of a VM?
I am working on SLA violation Time per Active Host(SLATAH). I want to consider three parameters CPU, RAM and Bw for calculation of this metric. Now, for considering this three parameters I need to calculate the totalCurrentRequestedRam.
The bellow…
Ali Mosavi
- 23
- 5
1
vote
0 answers
SingularMatrixException: matrix is singular
I am trying to use the org.apache.commons.math3 OLSMultipleLinearRegression.java:
OLSMultipleLinearRegression regression = new OLSMultipleLinearRegression();
The data format of my x and y are different in every iteration like the following:
first…
Ali Mosavi
- 23
- 5
1
vote
0 answers
How can I calculate requested CPU and RAM in the CloudSim plus?
I want to implement a new VmAllocation policy in the CloudSim plus. How can I calculate the requested CPU and RAM? Also, I want to loop over all the hosts to figure out the current resource utilization in each host. How can I do this?
Hami
- 101
- 2
- 8
1
vote
0 answers
CloudsimSDN ERROR:could not find or load main class org.cloudbus.cloudsim.sdn.example
I wanted to run SDNExample of CloudSimSDN with CMD. First I downloaded cloudsim.4.0 then I put it in the directory cloudsimsdn-2.0.1-beta. Then I installed mvn with code mvn clean install in cmd.
mvn with some warning was run. When I enter
java -cp…
marzie bagheri
- 11
- 2
1
vote
0 answers
Scheduling tasks in vm waiting queue
We all know both timeshared and spaceshared in which timeshared act like round robin while spaceshared to represent fcfs based algorithms
But the problem here how to implement RR on the waiting queue for vm if we have 100 cloudlets and one vm
Please…
محمد علي الزيادنه
- 41
- 2
1
vote
1 answer
how can we schedule cloudlets Round-Robin scheduling algorithm if the quantum time=5
how can we schedule cloudlets using Round-Robin scheduling algorithm if they are sorted according to the arrival time.
For example there are 2 VMs and 6 cloudlets. Cloudlets exec time= 12, 5, 10, 7, 15, 18 Quantum = 5 Can you guide me in an…
محمد علي الزيادنه
- 41
- 2
1
vote
1 answer
How can we create VM and Cloudlets dynamically in cloudsim afterCloudSim.startSimulation() is being called?
How can we create VM and Cloudlets dynamically in cloudsim afterCloudSim.startSimulation() is being called?
I am trying to add vms and cloudlets, to an already existing broker, dynamically as the simulation progresses.
I tried…
محمد علي الزيادنه
- 41
- 2
1
vote
2 answers
how the timeshared in cloudsim work in cloudsim?
how the timeshared in cloudsim work, there is no variable that represent a time slice or quantum, so how the concept of round robin is verified in cloudsim?
If we have 50 cloudlets,10 VMs
محمد علي الزيادنه
- 41
- 2