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Hello
I'm working on reducing power consumption in fog computing.
Can I find the energy consumed in the connections between the nodes (the energy consumed in the links) in the iFogsim or do I have to write a function for this?

hello everyone, i need help! how can i recover the energy consumption in Ifogsim using the method "UpdateEnergyConsumption"

I have implemented a module allocation that they get placed only on fog nodes through some conditions. I want to know whether these modules are also getting executed on the placed fog nodes or not. How can we possibly know that.

Hi guys,
I apologize in advance for the question, probably is very silly or maybe not. I try to create my own topologies to make a simulation and see some results but:

1. I think it's not possible to create both directional edges between two nodes. It's true? (for example one edge from node A to node B and another one from node B to node A independently from the layer in which the nodes are)
2. it's not possible to create ONE edge between nodes of the same level. it's true? (if I create two fog nodes of level 1 and i want to connect them with an edge)
3. if I draw my topology and i want to test it to have back results (like the ones in the results folder), how i can do it?
   Can someone help me to take these doubts off? Thank you in advance.

There is a red mark is showing in source file so already installed example cannot run is shows error.

I used the Fog Gui to create a topology but when I click on Execution there is no change and the Fog Analyst Panel does not appear? The run simulation button is grayed out and if I do enable it, it asks for a deployment file and I'm not exactly sure what a deployment file is. Could someone please help me out wit the basic steps that are required to simulate a topology?

https://github.com/Cloudslab/iFogSim/blob/1282e44c29b20276bc59e1b804b53323456bf039/src/org/fog/placement/Controller.java#L106

How can I determine the Fractional Selectivity value or I just set whatever I want? AppEdge direction, too.

How do I save the output of my code and create a result file in a straightforward way

Hello,
I am getting "Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/math3/util/Pair" exception while I am trying to run the VRGameFog test. I have added all the jars to the classpath but it gives the error. I also added the screenshot. Anyone can help?
Thanks,

In the current version of iFogSim, I understand that each fog device defined only supports one parent device id.

Thus, how to resolve this issue? Thanks.

Please where can I add a scheduling algorithm in ifogsim

hello , there is no official documentation on how to use ifogsim or a real tutorials on how to use it, i wish if there will be an official guide on how to use and an examples with explanation

I want to create a topology for my framework using your cloudslab ifogsim simulator i have already downloaded all the required applications and on java eclipse i wanted to use the latest version eclips 2021-06 and I have already downloaded and installed it bu I can't find org.fog.gui file on Jrs Source folder. so how or where can i get org.fog.gui file to start creating topology and do simulations. Thank you!

Dear authors,

I need to simulate a service based scenario, where new applications are coming in and a controller is assigning them to fog nodes.
Thus, I need to add new applications after simulation start.
Is this possible is ifogsim? If so, please give me some advice on how to achieve this.

Thanks a lot in advance.

In line 252:
application.addTupleMapping("object_detector", "MOTION_VIDEO_STREAM", "DETECTED_OBJECT", new FractionalSelectivity(0.05)); // 0.05 tuples of type MOTION_VIDEO_STREAM are emitted by Object Detector module per incoming tuple of type MOTION_VIDEO_STREAM

should be corrected as

application.addTupleMapping("object_detector", "MOTION_VIDEO_STREAM", "DETECTED_OBJECT", new FractionalSelectivity(0.05)); // 0.05 tuples of type DETECTED_OBJECT are emitted by Object Detector module per incoming tuple of type MOTION_VIDEO_STREAM

Dear Authors,
Im a bachelor degree student and currently involved in doing a research project QoE in fog computing for academic purpose. As im doing my research, i come across your research paper titled "Quality of Experience (QoE)-aware placement of applications in Fog computing environments" http://www.buyya.com/papers/QoE-Fog-JPDC.pdf

I was wondering whether if you can provide the fog simulator source project file for QoE. It will be a great help to me in having a better understanding on how you develop the QoE application placement policy. Thanks a lot for your efforts.

Hi,
I have two questions.

1. Is it possible to create a data center inside the cloud and make a connection between it and the fog device? What command is used to make this connection?
2. Is it possible to have two user sets instead of sensors?
   For example, a set as a sender and a set as a receiver.
   thanks

Hi,
I need to use PSO in fog servers manager, to manage the resource allocation
Where I should write the code of PSO?

I included the JAR files but I dont know how can I open the VRGame.java program

Hi everyone,
I'm not a java expert, so I have questions about modulePlacementEdgeward.
My question is about the "shiftModuleNorth" function.
I think this function has some problems in calculating the total load and current load. I modified the code to work correctly but I'm not sure if it is right or not. I really appreciate it if you can help me.

Whenever large number of numOfAreas (more than 4) and/or numOfCamerasPerArea (more than 75), an error is thrown as attached below.

Hi, I just don't understand a couple of things about this project:

1. Can someone help me having a exactly definition of what are "Execution in cloud" and "execution in time"? what they are exactly? just RTT or one way traveling?
2. Is possible, to monitor and extract how much time or energy the modules spent processing informations (or tuple) or something like that?
3. This project talks about real-time...where, in the code, I can find a proof of this management? where the code manage and setting the real-time conditions?
4. One of the examples is the intelligent surveillance with distributed cameras...so I have to find some informations about bitrate or resolutions to send video informations. But I can find only informations about tuples send and received. Where I can find these informations about video testing?