fork download
copy 
  1. import SimPy.Simulation as sp
  2. import random as rd
  3. import numpy as np
  4.  
  5.  
  6. def interarriv():  # Generates the interarrival time between two clients
  7.     return 3  # Original version: probability distribution
  8.  
  9.  
  10. def service():  # Generates the time needed to execute a job
  11.     return 2  # Original version: probability distribution
  12.  
  13.  
  14. class ServerClass(sp.Process):
  15.     Busy = []  # List of busy servers
  16.     Idle = []  # List of available servers
  17.     Queue = []  # List of jobs to be executed
  18.  
  19.     def __init__(self):
  20.         sp.Process.__init__(self)
  21.         ServerClass.Idle.append(self)  # Saves the server in the list of the available ones
  22.  
  23. 	def Run(self):
  24.        while 1:
  25.            yield sp.passivate, self  # Waits for a new client to be served
  26.            ServerClass.Idle.remove(self)  # Moves the server from the idle list to the busy one
  27.            ServerClass.Busy.append(self)
  28.            while ServerClass.Queue != []:
  29. 			   # Takes the job
  30.                J = ServerClass.Queue.pop(0)
  31. 			   # Performs the job
  32.                yield sp.hold, self, service()
  33.            ServerClass.Busy.remove(self)
  34.            ServerClass.Idle.append(self)
  35.  
  36.  
  37. class JobClass:
  38.     def __init__(self):
  39.         self.ArrivalTime = sp.now()
  40.  
  41.  
  42. class ArrivalClass(sp.Process):
  43.    def  __init__(self):
  44.       sp.Process.__init__(self)
  45.  
  46.    def Run(self):
  47.       while 1:
  48.           # Waits for the arrival of a new client
  49.           yield sp.hold, self, interarriv()
  50.           J = JobClass()
  51. 		  # Stores the job to be performed
  52.           ServerClass.Queue.append(J)
  53.           if ServerClass.Idle != []:  # If there is an available machine
  54.               sp.reactivate(ServerClass.Idle[0])
  55.  
  56.  
  57. if __name__ == '__main__': 
  58. 	NMachines = 1
  59.     sp.initialize()
  60.  
  61. 	for I in range(NMachines):
  62.         M = ServerClass()
  63.         sp.activate(M,M.Run())
  64.  
  65. 	A = ArrivalClass()
  66.     sp.activate(A,A.Run())    
  67.  
  68. 	MaxSimTime = 104.0
  69.     sp.simulate(until=MaxSimTime)
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/py_compile.py", line 117, in compile
    raise py_exc
py_compile.PyCompileError: Sorry: IndentationError: ('unindent does not match any outer indentation level', ('prog.py', 24, 16, '       while 1:\n'))
stdout
copy 
Standard output is empty
https://ideone.com/DVGacK
language:
Python (cpython 2.7.16)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!