Queue Simulations

Prerequisites

• install docker

• Setup:

  • Get the image:

    docker pull galletti/simulations:latest
    

  • Run:

    docker run -it simulations:latest /bin/bash
    

• Alternatively you can build the image locally:

  • cd to this repo and run

    docker build -t simulations:latest .
    

  • Then run

    docker run -it simulations
    

• In the new shell, python2.7 and all the requirements will be install and you will be able to run the code as bellow

NetworkOfQueues.py

• Processes come into CPU with rate 40/s

• The CPU is an MM2, with service time .02s

• After being serviced by the CPU, the process moves on to: * the NetWork with probability .4 * the disk with probability .1 * is done with probability .5

• The Network is an MM1 queue with service time .025

• The Disk is an MM1 queue with service time .1

• After being serviced by the Network, the process circles back to get serviced by the CPU with probability 1

• After being serviced by the disk, the process: * circles back to get serviced by the CPU with probability .5 * moves on to the Network with probability .5

BasicQueueSimulation.py

• For MM1, compile with:

      python BasicQueueSimulation.py --type MM1
      
  

• For UU1, compile with:

      python BasicQueueSimultaion.py --type UU1
  

• For MM2, compile with:

      python BasicQueueSimulation.py --type MM2
  

To generate a plot of Average Queue Length (w) against Service Time (Ts) add -generateRawResults flag before --type flag

Example:

python BasicQueueSimulation.py -generateRawResults --type MM1

Issues

generateRawResults cannot (yet) display plot from docker container