What is the meaning of a cloudlet ?

[Minu Bala]

I am a new user of cloudsim simulator. I am able to run examples. But I am not able to understand .......What is a cloudlet?..... Please help me in understanding that.

Thanks

[Alessandro Leite]

Basically, a cloudlet represents a application service or a cloud task.

For more informations, read the paper:

Rodrigo N. Calheiros, Rajiv Ranjan, Anton Beloglazov, Cesar A. F. De Rose, and Rajkumar Buyya, CloudSim: A Toolkit for Modeling and Simulation of Cloud Computing Environments and Evaluation of Resource Provisioning Algorithms, Software: Practice and Experience (SPE), Volume 41, Number 1, Pages: 23-50, ISSN: 0038-0644, Wiley Press, New York, USA, January, 2011

On Fri, Oct 5, 2012 at 8:53 AM, Minu Bala <indmi...@gmail.com> wrote:

I am a new user of cloudsim simulator. I am able to run examples. But I am not able to understand .......What is a cloudlet?..... Please help me in understanding that.

Thanks

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[pranesh]

 In cloudsim every task is represented by cloudlet.That means the task that u want to execute in cloudsim.For example if u want to execute a sorting algorithm then the the sorting program is the task and in cloudsim u don't need to put the entire file(that contains the sorting program)....just u have to give the file size,length,input size,output size..etc....

[Sweta Patel]

i want to run 2 different sorting algorithms on 2 different VMs n want to determine the time taken by each VM  to execute the algorithm, so how can i do that ? u told that we dont need to provide the sorting program then how can we do it if u can explain in detail.

[shekhar India]

i am doing the same but using genetic algorithm........

[Shaahid Noor]

But how can I find the length of any problem? Suppose I want to implement a merge sort problem which is written in Java and would sort 1000 inputs. Can you tell me what will be my cloudlet file size, length, input size, and output size? 

I am right now planning to run some real life map reduce problems in cloudsim e.g., word count, inverted index or sorting. But I am no idea how to define cloudlet for those problems. I would appreciate if you give me some more idea about cloudlet.

Thanks

[muskanv...@gmail.com]

Hello,

I am trying to do a similar thing, trying to simulate my java program on cloudsim. But not sure how to write it in terms of million instructions and if the input file size includes both the size of the code and input parameters.

It would be great if someone can help me in this.

Thanks 

[hari priya]

Hi,

As you have mentioned the example of sorting program,instead of giving length, filesize,output size etc. I would like to give total task(sorting program) so, how can I accomplish that?

Thank you, waiting for your valuable reply.

[Laila Bouhouch]

Hello,

Im working on the same thing, did you find how to that ?

Thank you for your help.

[Mona Muhamad]

please if you know now how to define your cloudlet length, input size and output size of your program   which is written in Java, tell me how ? thank you 

[mohammad jomaa]

Hi , 

Cloudlet like a task or Job that you want to run on vm , please check the example 1 in cloudsim , and you can use cloudsim plus for more aspects that you need in your project  .

R,s

Jomaa

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[raja rao]

[Anupinder Singh]

Hello, 

In case if the query is still open.

In brief, Cloudlet in Cloudsim is a model class that defines the specifications for a simulation engine corresponding to the real-life candidate application. The Length defined for a cloudlet is an estimated set of instructions that are going to be executed in a test simulation run. Along with this you specify two more attributes for input file size and output file size, this is very important as this defines the bandwidth related calculations.

Following article presented a detail discussion regarding cloudsim attributes and its behavior https://www.cloudsimtutorials.online/cloudlet-in-cloudsim-simulation/  hope this will serve the purpose

Regards

Anupinder Singh

[Priyanka]

Hello,

I am working on cloudsim-plus simulator. In cloudsim-plus I am trying to implement new vmallocation policy with migration, right now I am using VmAllocationPolicyMigrationBestFitStaticThreshold approach as default which is working fine but instead of this approach when I am using VmAllocationPolicyMigrationStaticThreshold (first fit approach) it doesn't allocate host to vm. Please tell me how implement my own allocation policy and in which class I need to make the changes.

Thanks