Cloudsim Tutorials

What is Cloudsim?

Cloudsim in Cloud Computing

CloudSim is a simulation toolkit that supports the modelling and simulation of the core functionality of the cloud, like job/task queue, processing of events, creation of cloud entities(datacenter, datacenter brokers, etc.), communication between different entities, implementation of broker policies, etc. This toolkit allows to:

The core features of CloudSim:

Is Cloudsim suitable for my research work?

This simulation toolkit is an API that allows a developer to run any server hardware model as a software simulation, to analyze its behavior for real-world workloads.

Therefore it is clear that it allows a researcher to simulate the Infrastructure as a Service(IaaS) layer.

This includes software models of data centers, hosts, storage, virtual machines, Cloud datacenter brokers, allocation & scheduling policies for the virtual machines as well as tasks, power management policies including migrations and consolidation of the virtual machines over different hosts, defining the workload attributes for its execution simulation over the cloud systems, etc.

It is not applicable/suitable where you are looking to analyze any service related to Platform as a Service(PaaS) or Software as a Service(SaaS) for example real-time applications, security algorithms, platform implementations, etc

Does Cloudsim setup require a High computing system?

No, not at all. The cloudsim is a software simulation toolkit and is developed using Java programming language, Therefore, any computer system with a dual-core processor, 2 GB RAM, and 1 GB storage is good enough to simulate the cloud-based systems using the cloudsim as this is required to support the JRE working.

Also, the hardware requirements may differ on the basis of which IDE you are using for JAVA development.

How to download Cloudsim?

Cloudsim project source code, as well as compiled jars files, are published through the GitHub project page: https://github.com/Cloudslab/cloudsim.

By default, the project page displays the source code(based on the maven build tool) of the current release, which is currently released version 5.0(beta) and the page displays the basic information about the project along with the publication details.

Now if you are interested in using the previous versions of this project then you have to click on the releases link option available on the project’s main page or otherwise, you may access it directly from the following links:

Every version except 6.0 and 5.0(still under development) contains 4 asset files.

The example description for each asset file is as follows:

How to install Cloudsim?

Cloudsim setup is very easy, and I encourage you to start with version 3.0.3.

For this, you may follow the following link: cloudsim-setup-using-eclipse/.

This link describes in detail all the steps required to configure the Cloudsim 3.0.3 version successfully and can help you to also understand the core architecture of this cloudsim simulation tool.

The cloudsim 3.0.3 version is best to start with that once you understand the basic working and architecture then you can move to the latest version.

How does cloudsim work?

As it is already mentioned that the cloudsim allows modeling and simulate the cloud system components, therefore to support its function different set of classes has been developed by its developers:

To read and understand more about the architecture, you should definitely read the article titled “CloudSim Simulation Toolkit: An Introduction” as well as “Beginners Guide to Cloudsim Project Structure

How to run my first cloudsim simulation scenario?

Once you have completed your installation/setup and understand the basic workings of the cloudsim, the next step is to implement your custom scenario.

Any simulation will go through the following steps:

The step-by-step detailed description of each step can be read in the article “Guide to CloudsimExample1.java simulation workflow

Cloudsim is frequently used for?

Other simulators based on cloudsim

The Cloudsim 3.x.x version was a very important release and become the base for many other extensions which in turn support a very specific type of use cases:

Cloudsim simulation toolkit Learning Resources

Sample Cloudsim Source Codes

There are various researchers who have published their cloudsim project code on their GitHub handles, following are the quick links for your reference:

As a beginner, you may refer to these pieces of code to understand, how other fellow researchers have worked on the cloudsim-based simulation to implement their work.

And definitely, this will help you to accelerate yours by forking these projects and working on your own additions or a complete overhaul of these sets of codes.

Also, To quickly get started with Cloudsim Simulation Toolkit, Feel free to join our ongoing series of webinars for beginners to Cloudsim Simulation Toolkit I am really interested to interact with you.

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