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CPU_Scheduler.py
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CPU_Scheduler.py
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# -*- coding: utf-8 -*-
"""
Created on Sat Apr 24 05:34:34 2021
CPU sheduler project
"""
import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
from PyQt5 import QtCore, QtGui, QtWidgets
import numpy as np
import sys
import os
def resource_path(relative_path):
"""Function that allows GUI images to be built into the exe."""
if hasattr(sys, '_MEIPASS'):
return os.path.join(sys._MEIPASS, relative_path)
return os.path.join(os.path.abspath("."), relative_path)
class Queue:
"""Class created to assist the RR algorithm"""
def __init__(self,l=None):
if(l == None):
self.q=[]
else:
self.q = list(l)
def __str__(self):
return str(self.q)
def __repr__(self):
return self.q
def push(self,elem):
self.q.append(elem)
def pop(self):
temp = self.q[0]
self.q = self.q[1:]
return temp
def empty(self):
if(len(self.q) == 0): return 1
return 0
class SJF(object):
"""SJF scheduler implementation and GUI."""
def fig_init(self, processes_name, total_burst):
#Declaring a figure
self.fig, self.ax = plt.subplots()
self.processes_name= processes_name
#Setting x-axis and y-axis limits
self.ax.set_ylim(0, len(processes_name))
self.ax.set_xlim(0, total_burst)
#Labels
self.ax.set_ylabel('Processes')
self.ax.set_xlabel('Time Taken by Each Process')
#Setting y-axis ticks
ytick = [(i + 1) * 10 for i in range(len(processes_name) + 1)]
self.ax.set_xticks(np.arange(0, total_burst + 1, 1))
self.ax.set_yticks(ytick)
self.ax.grid(axis='x')
def draw(self, name, start_time, end_time):
no = int(name[1:])
name = name.title()
colors = ['blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', 'blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf']
# Declearing a bar in the schedule
self.ax.broken_barh([(start_time, end_time - start_time)], (0,8), facecolors=colors[no])
for _ in range(0, len(self.processes_name)):
x = start_time + (end_time-start_time)/2
y = 4
s = name[0:]
self.ax.text(x, y, s=s, ha='center',va='bottom', fontsize =10, fontweight = "bold")
self.ax.spines['left'].set_visible(False)
self.ax.spines['bottom'].set_visible(False)
self.ax.spines['top'].set_visible(False)
self.ax.spines['right'].set_visible(False)
self.ax.set_axisbelow(True)
def swapPositions(self,list, pos1, pos2):
list[pos1], list[pos2] = list[pos2], list[pos1]
return list
def get_min_pos(self,list):
Min = 0
for x in range(len(list)):
Min = list[x]
if Min > 0:
break
for x in range(len(list)):
for y in range(x + 1, len(list)):
if (list[y] < Min and list[y] > 0):
Min = list[y]
return Min
def sjf(self,processesNames,burstTime,arrivalTime,numberProcesses,Preemptive):
self.fig_init(processesNames, sum(burstTime) + 10 + max(arrivalTime))
last_x = 0
flag = 0
newBurstList = []
newProcessesList = []
arrivedList = []
avgWaitingTime = []
sumAvgTime = 0
if not (Preemptive):
# Sorting based on arrival time
for x in range(numberProcesses):
for y in range(x + 1, numberProcesses):
if arrivalTime[x] > arrivalTime[y]:
self.swapPositions(arrivalTime, x, y)
self.swapPositions(burstTime, x, y)
self.swapPositions(processesNames, x, y)
elif arrivalTime[x] == arrivalTime[y]:
if burstTime[x] > burstTime[y]:
self.swapPositions(burstTime, x, y)
self.swapPositions(processesNames, x, y)
# Graphing the processes
for z in range(numberProcesses):
for count in range(numberProcesses):
if last_x >= arrivalTime[count]:
flag = 1
arrivedList.append(arrivalTime[count])
newBurstList.append(burstTime[count])
newProcessesList.append(processesNames[count])
if sum(newBurstList) == 0:
flag = 0
if (flag):
min_value = self.get_min_pos(newBurstList)
minIndex = newBurstList.index(min_value)
self.draw(newProcessesList[minIndex], last_x, last_x + newBurstList[minIndex])
last_x = last_x + newBurstList[minIndex]
flag = 0
index_of_sepec_process = processesNames.index(newProcessesList[minIndex])
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
burstTime[index_of_sepec_process] = 0
elif not (flag):
if last_x < arrivalTime[z]:
self.draw(processesNames[z], arrivalTime[z], arrivalTime[z] + burstTime[z])
last_x = arrivalTime[z] + burstTime[z]
burstTime[z] = 0
else:
self.draw(processesNames[z], last_x, last_x + burstTime[z])
last_x = last_x + burstTime[z]
avgWaitingTime.append(last_x - arrivalTime[z]
- burstTime[z])
burstTime[z] = 0
newBurstList = []
newProcessesList = []
arrivedList = []
sumAvgTime = sum(avgWaitingTime) / numberProcesses
elif Preemptive:
# Sorting by arrival time
for x in range(numberProcesses):
for y in range(x + 1, numberProcesses):
if arrivalTime[x] > arrivalTime[y]:
self.swapPositions(arrivalTime, x, y)
self.swapPositions(burstTime, x, y)
self.swapPositions(processesNames, x, y)
elif arrivalTime[x] == arrivalTime[y]:
if burstTime[x] > burstTime[y]:
self.swapPositions(burstTime, x, y)
self.swapPositions(processesNames, x, y)
# Printing all until final arrival time
for i in range(numberProcesses):
arrivedList.append(arrivalTime[i])
newBurstList.append(burstTime[i])
newProcessesList.append(processesNames[i])
while (1):
min_value = self.get_min_pos(newBurstList)
minIndex = newBurstList.index(min_value)
index_of_sepec_process = processesNames.index(newProcessesList[minIndex])
if i != len(arrivalTime) - 1:
if last_x < arrivalTime[i]:
if arrivalTime[i + 1] > (arrivalTime[i] + newBurstList[minIndex]):
self.draw(newProcessesList[minIndex], arrivalTime[i], arrivalTime[i] +
newBurstList[minIndex])
last_x = arrivalTime[i] + newBurstList[minIndex]
newBurstList[minIndex] = 0
else:
self.draw(newProcessesList[minIndex], arrivalTime[i],
arrivalTime[i + 1])
last_x = arrivalTime[i + 1]
newBurstList[minIndex] = newBurstList[minIndex] - (
last_x - arrivalTime[i])
if newBurstList[minIndex] == 0:
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
else:
if arrivalTime[i + 1] > (last_x + newBurstList[minIndex]):
self.draw(newProcessesList[minIndex], last_x, last_x + newBurstList[minIndex])
last_x = last_x + newBurstList[minIndex]
newBurstList[minIndex] = 0
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
else:
self.draw(newProcessesList[minIndex], last_x, arrivalTime[i + 1])
newBurstList[minIndex] = newBurstList[minIndex] - (
arrivalTime[i + 1] - last_x)
last_x = arrivalTime[i + 1]
if newBurstList[minIndex] == 0:
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
elif i == len(arrivalTime) - 1:
if last_x < arrivalTime[i]:
self.draw(newProcessesList[minIndex], arrivalTime[i], arrivalTime[i] +
newBurstList[minIndex])
last_x = arrivalTime[i] + newBurstList[minIndex]
newBurstList[minIndex] = 0
else:
self.draw(newProcessesList[minIndex], last_x, last_x + newBurstList[minIndex])
last_x = last_x + newBurstList[minIndex]
newBurstList[minIndex] = 0
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
if i == numberProcesses - 1:
break
elif (arrivalTime[i + 1] - last_x) == 0 or sum(newBurstList) == 0:
break
# Sorting by burst time
for x in range(numberProcesses):
for y in range(x + 1, numberProcesses):
if newBurstList[x] > newBurstList[y]:
self.swapPositions(newBurstList, x, y)
self.swapPositions(arrivedList, x, y)
self.swapPositions(newProcessesList, x, y)
elif newBurstList[x] == newBurstList[y]:
if arrivedList[x] > arrivedList[y]:
self.swapPositions(arrivedList, x, y)
self.swapPositions(newProcessesList, x, y)
# Drawing after final arrival time
for i in range(numberProcesses):
if newBurstList[i] > 0:
self.draw(newProcessesList[i], last_x, last_x + newBurstList[i])
last_x = last_x + newBurstList[i]
index_of_sepec_process = processesNames.index(newProcessesList[i])
avgWaitingTime.append(last_x - arrivalTime[index_of_sepec_process]
- burstTime[index_of_sepec_process])
sumAvgTime = sum(avgWaitingTime) / numberProcesses
red_patch = mpatches.Patch(label="The Average Waiting Time is: {}".format(sumAvgTime), fill=False)
plt.legend(handles=[red_patch])
plt.show()
def click(self):
"""Function that connects values obtained by GUI to sorting algorithm."""
numberOfProcesses = int(self.textEdit_3.toPlainText())
value_of_textedit_2 = self.textEdit_2.toPlainText()
arrivalTime = value_of_textedit_2.splitlines()
value_of_textedit = self.textEdit.toPlainText()
burstTime = value_of_textedit.splitlines()
processesNames = []
i = 0
for i in range(numberOfProcesses):
arrivalTime[i] = float(arrivalTime[i])
burstTime[i] = float(burstTime[i])
processesNames.append("p" + str(i + 1))
Preemptive = self.radioButton.isChecked()
self.sjf(processesNames, burstTime, arrivalTime, numberOfProcesses, Preemptive)
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(876, 866)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("bigger.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
resource_path("bigger.png")
MainWindow.setWindowIcon(icon)
MainWindow.setAutoFillBackground(False)
MainWindow.setStyleSheet("background-color: white;")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.radioButton = QtWidgets.QRadioButton(self.centralwidget)
self.radioButton.setGeometry(QtCore.QRect(490, 170, 301, 31))
self.radioButton.setStyleSheet("\n"
"font: 12pt \"Montserrat\"; font-weight: bold; color: black;")
self.radioButton.setObjectName("radioButton")
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setGeometry(QtCore.QRect(490, 250, 411, 51))
self.label_4.setAutoFillBackground(False)
self.label_4.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_4.setObjectName("label_4")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(90, 250, 301, 51))
self.label_3.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label_3.setAutoFillBackground(False)
self.label_3.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_3.setObjectName("label_3")
self.label_5 = QtWidgets.QLabel(self.centralwidget)
self.label_5.setGeometry(QtCore.QRect(90, 130, 231, 101))
self.label_5.setAutoFillBackground(False)
self.label_5.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_5.setObjectName("label_5")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(150, 40, 651, 101))
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setAutoFillBackground(False)
self.label.setStyleSheet("font: 16pt \"Montserrat\"; color: black ; font-weight: bold;\n"
" font-weight:bold;")
self.label.setObjectName("label")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(290, 730, 271, 91))
self.pushButton.setStyleSheet("font: 14pt \"Montserrat\"; font-weight: bold; color:#FF5757; font-size: 14;")
self.pushButton.setObjectName("pushButton")
self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit.setGeometry(QtCore.QRect(490, 310, 291, 371))
self.textEdit.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit.setObjectName("textEdit")
self.textEdit_2 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_2.setGeometry(QtCore.QRect(90, 310, 291, 371))
self.textEdit_2.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_2.setObjectName("textEdit_2")
self.textEdit_3 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_3.setGeometry(QtCore.QRect(330, 150, 91, 61))
self.textEdit_3.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_3.setObjectName("textEdit_3")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
#Connecting to the Run Button
self.pushButton.clicked.connect(self.click)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "CPU Job Scheduler"))
self.radioButton.setText(_translate("MainWindow", "Preemptive or not?"))
self.label_4.setText(_translate("MainWindow", "Burst Time of Each Process"))
self.label_3.setText(_translate("MainWindow", "Arrival time of Each Process"))
self.label_5.setText(_translate("MainWindow", "Number of Processes"))
self.label.setText(_translate("MainWindow", "PLEASE ENTER THE FOLLOWING INPUTS:"))
self.pushButton.setText(_translate("MainWindow", "RUN"))
class Queue:
"""Class created to assist the RR algorithm"""
def __init__(self,l=None):
if(l == None):
self.q=[]
else:
self.q = list(l)
def __str__(self):
return str(self.q)
def __repr__(self):
return self.q
def push(self,elem):
self.q.append(elem)
def pop(self):
temp = self.q[0]
self.q = self.q[1:]
return temp
def empty(self):
if(len(self.q) == 0): return 1
return 0
class rr(object):
"""RR scheduler algorithm implementation and GUI."""
def fig_init(self, processes_name, total_burst):
#Declaring a figure
self.fig, self.ax = plt.subplots()
self.processes_name= processes_name
#Setting x-axis and y-axis limits
self.ax.set_ylim(0, len(processes_name))
self.ax.set_xlim(0, total_burst)
#Labels
self.ax.set_ylabel('Processes')
self.ax.set_xlabel('Time Taken by Each Process')
#Setting y-axis ticks
ytick = [(i + 1) * 10 for i in range(len(processes_name) + 1)]
self.ax.set_xticks(np.arange(0, total_burst + 1, 1))
self.ax.set_yticks(ytick)
self.ax.grid(axis='x')
def draw(self, name, start_time, end_time):
no = int(name[1:])
name = name.title()
colors = ['blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', 'blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf']
self.ax.broken_barh([(start_time, end_time - start_time)], (0,8), facecolors=colors[no])
for _ in range(0, len(self.processes_name)):
x = start_time + (end_time-start_time)/2
y = 4
s = name[0:]
self.ax.text(x, y, s=s, ha='center',va='bottom', fontsize =10, fontweight = "bold")
self.ax.spines['left'].set_visible(False)
self.ax.spines['bottom'].set_visible(False)
self.ax.spines['top'].set_visible(False)
self.ax.spines['right'].set_visible(False)
self.ax.set_axisbelow(True)
def Round_Robin(self, processesNames, burstTime, arrivalTime, numberProcesses, quantum):
turnAround = [i for i in range(len(processesNames))]
total = sum(burstTime) + 10 + max(arrivalTime)
self.fig_init(processesNames, total)
# first step of sorting
for i in range(numberProcesses):
swapping = False
for j in range(numberProcesses - i - 1):
if (arrivalTime[j] > arrivalTime[j + 1]):
arrivalTime[j], arrivalTime[j + 1] = arrivalTime[j + 1], arrivalTime[j]
processesNames[j], processesNames[j + 1] = processesNames[j + 1], processesNames[j]
burstTime[j], burstTime[j + 1] = burstTime[j + 1], burstTime[j]
swapping = True
elif (arrivalTime[j] == arrivalTime[j + 1]):
if (int(processesNames[j][1:]) > int(processesNames[j + 1][1:])):
arrivalTime[j], arrivalTime[j + 1] = arrivalTime[j + 1], arrivalTime[j]
processesNames[j], processesNames[j + 1] = processesNames[j + 1], processesNames[j]
burstTime[j], burstTime[j + 1] = burstTime[j + 1], burstTime[j]
swapped = True
if (swapping == False): break
burstCopy = list(burstTime)
termination =0
i=0
queue = Queue()
flag=[0 for i in range (numberProcesses)]
firstTime=1
while(termination < numberProcesses):
last_x = arrivalTime[i]
queue.push([processesNames[i], burstTime[i]])
while(not queue.empty()):
temp = queue.pop()
if(temp[1] <= quantum):
duration = min(temp[1],quantum)
self.draw(temp[0] , last_x, last_x +duration )
old_x=last_x
last_x=last_x+duration
turnAround[ processesNames.index(temp[0])] = last_x-arrivalTime[ processesNames.index(temp[0])]
termination=termination+1
flag[ processesNames.index(temp[0]) ] =1
if (firstTime):
for it in range(1, len(arrivalTime)):
if (arrivalTime[it] > last_x):
break
if (arrivalTime[it] >= old_x and arrivalTime[it] <= last_x and temp[0] !=
processesNames[it]):
queue.push(
[processesNames[it], burstTime[it]])
else:
for it in range(len(arrivalTime)):
if (arrivalTime[it] > last_x):
break
if (arrivalTime[it] > old_x and arrivalTime[it] <= last_x and temp[0] !=
processesNames[it]):
queue.push(
[processesNames[it], burstTime[it]])
else:
duration = quantum
self.draw(temp[0] , last_x, last_x +duration)
old_x=last_x
last_x=last_x+duration
temp[1] = temp[1]-quantum
if (firstTime):
for it in range(1,len(arrivalTime)):
if (arrivalTime[it] > last_x): break
if (arrivalTime[it] >= old_x and arrivalTime[it] <= last_x and temp[0] != processesNames[it]):
queue.push(
[processesNames[it], burstTime[it]])
else:
for it in range(len(arrivalTime)):
if (arrivalTime[it] > last_x):
break
if (arrivalTime[it] > old_x and arrivalTime[it] <= last_x and temp[0] != processesNames[it]):
queue.push(
[processesNames[it], burstTime[it]])
queue.push(temp)
firstTime = 0
# If the queue is empty
if (termination == numberProcesses):
break
else:
for f in range(numberProcesses):
if(flag[f] == 0):
i=f
break
waiting = []
for i in range(len(processesNames)):
waiting.append(turnAround[i] - burstCopy[i])
avgWaitingTime = sum(waiting) / len(waiting)
red_patch = mpatches.Patch(label="The Average Waiting Time is: {}".format(avgWaitingTime), fill=False)
plt.legend(handles=[red_patch])
plt.show()
def click(self):
numberProcesses = int(self.textEdit_4.toPlainText())
value_of_textedit_2 = self.textEdit_2.toPlainText()
arrivalTime = value_of_textedit_2.splitlines()
value_of_textedit_3 = self.textEdit_3.toPlainText()
burstTime = value_of_textedit_3.splitlines()
quantum = float(self.textEdit_5.toPlainText())
processesNames = []
i = 0
for i in range(numberProcesses):
arrivalTime[i] = float(arrivalTime[i])
burstTime[i] = float(burstTime[i])
processesNames.append("p" + str(i + 1))
self.Round_Robin(processesNames, burstTime, arrivalTime, numberProcesses, quantum)
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(828, 900)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("scheduler (1).png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
MainWindow.setWindowIcon(icon)
MainWindow.setAutoFillBackground(False)
MainWindow.setStyleSheet("background-color: white;")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label_5 = QtWidgets.QLabel(self.centralwidget)
self.label_5.setGeometry(QtCore.QRect(50, 160, 231, 101))
self.label_5.setAutoFillBackground(False)
self.label_5.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_5.setObjectName("label_5")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(110, 60, 651, 101))
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setAutoFillBackground(False)
self.label.setStyleSheet("font: 16pt \"Montserrat\"; color: black ; font-weight: bold;\n"
" font-weight:bold;")
self.label.setObjectName("label")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(50, 270, 341, 71))
self.label_3.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label_3.setAutoFillBackground(False)
self.label_3.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_3.setObjectName("label_3")
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setGeometry(QtCore.QRect(440, 280, 411, 51))
self.label_4.setAutoFillBackground(False)
self.label_4.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_4.setObjectName("label_4")
self.label_6 = QtWidgets.QLabel(self.centralwidget)
self.label_6.setGeometry(QtCore.QRect(450, 160, 111, 101))
self.label_6.setAutoFillBackground(False)
self.label_6.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_6.setObjectName("label_6")
self.textEdit_2 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_2.setGeometry(QtCore.QRect(50, 340, 291, 371))
self.textEdit_2.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_2.setObjectName("textEdit_2")
self.textEdit_3 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_3.setGeometry(QtCore.QRect(440, 340, 291, 371))
self.textEdit_3.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_3.setObjectName("textEdit_3")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(260, 750, 271, 91))
self.pushButton.setStyleSheet("font: 14pt \"Montserrat\"; font-weight: bold; color:#FF5757; font-size: 14;")
self.pushButton.setObjectName("pushButton")
self.textEdit_4 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_4.setGeometry(QtCore.QRect(290, 180, 91, 61))
self.textEdit_4.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_4.setObjectName("textEdit_4")
self.textEdit_5 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_5.setGeometry(QtCore.QRect(570, 180, 91, 61))
self.textEdit_5.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_5.setObjectName("textEdit_5")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
#Connecting to the Run Button
self.pushButton.clicked.connect(self.click)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "CPU Job Scheduler"))
self.label_5.setText(_translate("MainWindow", "Number of Processes"))
self.label.setText(_translate("MainWindow", "PLEASE ENTER THE FOLLOWING INPUTS:"))
self.label_3.setText(_translate("MainWindow", "Arrival time of Each Process"))
self.label_4.setText(_translate("MainWindow", "Burst Time of Each Process"))
self.label_6.setText(_translate("MainWindow", "Quantum"))
self.pushButton.setText(_translate("MainWindow", "RUN"))
class FCFS(object):
"""FCFS scheduler algorithm implementation and GUI."""
def fig_init(self, processes_name, total_burst):
#Declaring a figure
self.fig, self.ax = plt.subplots() # must be global
self.processes_name= processes_name
#Setting x-axis and y-axis limits
self.ax.set_ylim(0, len(processes_name))
self.ax.set_xlim(0, total_burst)
#Labels
self.ax.set_ylabel('Processes')
self.ax.set_xlabel('Time Taken by Each Process')
#Setting y-axis ticks
ytick = [(i + 1) * 10 for i in range(len(processes_name) + 1)]
self.ax.set_xticks(np.arange(0, total_burst + 1, 1))
self.ax.set_yticks(ytick)
######self.ax.set_yticklabels(["self.processes_name"," "," "," "])
#self.ax.grid(True)
self.ax.grid(axis='x')
def draw(self, name, start_time, end_time):
no = int(name[1:])
name = name.title()
colors = ['blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf']
color = []
for i in range(0,len(self.processes_name)+1):
color = colors[i]
# Declearing a bar in the schedule
#self.ax.broken_barh([(start_time, end_time - start_time)], ((no * 10) - 4, 7), facecolors=('tab:blue'))
self.ax.broken_barh([(start_time, end_time - start_time)], (0,8), facecolors=colors[no])
for i in range(0, len(self.processes_name)):
x = start_time + (end_time-start_time)/2
y = 4
s = name[0:]
self.ax.text(x, y, s=s, ha='center',va='bottom', fontsize =10, fontweight = "bold")
self.ax.spines['left'].set_visible(False)
self.ax.spines['bottom'].set_visible(False)
self.ax.spines['top'].set_visible(False)
self.ax.spines['right'].set_visible(False)
self.ax.set_axisbelow(True)
def sort(self,arrival_time, process_name, burst_time):
for i in range(len(arrival_time)):
swapped = False
for j in range(len(arrival_time) - i - 1):
if (arrival_time[j] > arrival_time[j + 1]):
arrival_time[j], arrival_time[j + 1] = arrival_time[j + 1], arrival_time[j]
process_name[j], process_name[j + 1] = process_name[j + 1], process_name[j]
burst_time[j], burst_time[j + 1] = burst_time[j + 1], burst_time[j]
swapped = True
elif (arrival_time[j] == arrival_time[j + 1]):
if (burst_time[j]>burst_time[j+1]):
arrival_time[j], arrival_time[j + 1] = arrival_time[j + 1], arrival_time[j]
process_name[j], process_name[j + 1] = process_name[j + 1], process_name[j]
burst_time[j], burst_time[j + 1] = burst_time[j + 1], burst_time[j]
swapped = True
elif(burst_time[j]==burst_time[j+1]):
if(int(process_name[j][1:]) > int(process_name[j + 1][1:])):
arrival_time[j], arrival_time[j + 1] = arrival_time[j + 1], arrival_time[j]
process_name[j], process_name[j + 1] = process_name[j + 1], process_name[j]
burst_time[j], burst_time[j + 1] = burst_time[j + 1], burst_time[j]
swapped = True
if (swapped == False):
return
def fcfs(self,Processes_Names,Burst_Time_List,Arrival_Time_List,Number_Of_Processes):
turn_around = []
####
self.fig_init(Processes_Names, sum(Burst_Time_List) + 20 + max(Arrival_Time_List))
# sorrrrrrt
self.sort(Arrival_Time_List,Processes_Names,Burst_Time_List)
#####
last_x = Arrival_Time_List[0]
for i in range(len(Processes_Names)):
if (last_x < Arrival_Time_List[i]):
last_x = Arrival_Time_List[i]
self.draw(Processes_Names[i], last_x, Burst_Time_List[i] + last_x)
last_x = last_x + Burst_Time_List[i]
turn_around.append(last_x - Arrival_Time_List[i])
waiting_time = []
for k in range(len(turn_around)):
waiting_time.append(turn_around[k] - Burst_Time_List[k])
average_waiting = sum(waiting_time) / len(Processes_Names)
red_patch = mpatches.Patch(label="The Average Waiting Time is: {}".format(average_waiting), fill=False)
plt.legend(handles=[red_patch])
plt.show()
def click(self):
#try:
Number_Of_Processes = int(self.textEdit_4.toPlainText())
value_of_textedit_2 = self.textEdit_2.toPlainText()
Arrival_Time_List = value_of_textedit_2.splitlines()
value_of_textedit_3 = self.textEdit_3.toPlainText()
Burst_Time_List = value_of_textedit_3.splitlines()
Processes_Names = []
i = 0
x = 0
for i in range(Number_Of_Processes):
Arrival_Time_List[i] = float(Arrival_Time_List[i])
Burst_Time_List[i] = float(Burst_Time_List[i])
Processes_Names.append("p" + str(i + 1))
self.fcfs(Processes_Names, Burst_Time_List, Arrival_Time_List, Number_Of_Processes)
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setEnabled(True)
MainWindow.resize(872, 859)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("bigger.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
resource_path("bigger.png")
MainWindow.setWindowIcon(icon)
MainWindow.setAutoFillBackground(False)
MainWindow.setStyleSheet("background-color: white;")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(150, 50, 651, 101))
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setAutoFillBackground(False)
self.label.setStyleSheet("font: 16pt \"Montserrat\"; color: black ; font-weight: bold;\n"
" font-weight:bold;")
self.label.setObjectName("label")
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setGeometry(QtCore.QRect(450, 260, 411, 71))
self.label_4.setAutoFillBackground(False)
self.label_4.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_4.setObjectName("label_4")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(60, 280, 341, 41))
self.label_3.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label_3.setAutoFillBackground(False)
self.label_3.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_3.setObjectName("label_3")
self.label_5 = QtWidgets.QLabel(self.centralwidget)
self.label_5.setGeometry(QtCore.QRect(60, 150, 231, 101))
self.label_5.setAutoFillBackground(False)
self.label_5.setStyleSheet("font: 12pt \"Montserrat\"; color: black; font-weight: bold;")
self.label_5.setObjectName("label_5")
self.textEdit_2 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_2.setGeometry(QtCore.QRect(60, 330, 291, 371))
self.textEdit_2.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_2.setObjectName("textEdit_2")
self.textEdit_3 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_3.setGeometry(QtCore.QRect(450, 330, 291, 371))
self.textEdit_3.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_3.setObjectName("textEdit_3")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(280, 730, 271, 91))
self.pushButton.setStyleSheet("font: 14pt \"Montserrat\"; font-weight: bold; color:#FF5757; font-size: 14;")
self.pushButton.setObjectName("pushButton")
self.textEdit_4 = QtWidgets.QTextEdit(self.centralwidget)
self.textEdit_4.setGeometry(QtCore.QRect(300, 180, 91, 61))
self.textEdit_4.setStyleSheet("border: 2px solid black; font: 75 20pt")
self.textEdit_4.setObjectName("textEdit_4")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
#Connecting to the Run Button
self.pushButton.clicked.connect(self.click)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "CPU Job Scheduler"))
self.label.setText(_translate("MainWindow", "PLEASE ENTER THE FOLLOWING INPUTS:"))
self.label_4.setText(_translate("MainWindow", "Burst Time of Each Process"))
self.label_3.setText(_translate("MainWindow", "Arrival time of Each Process"))
self.label_5.setText(_translate("MainWindow", "Number of Processes"))
self.pushButton.setText(_translate("MainWindow", "RUN"))
class priority(object):
"""Priority scheduling algorithm implementation and GUI."""
def fig_init(self, processes_name, total_burst):
#Declaring a figure
self.fig, self.ax = plt.subplots() # must be global
self.processes_name= processes_name
#Setting x-axis and y-axis limits
self.ax.set_ylim(0, len(processes_name))
self.ax.set_xlim(0, total_burst)
#Labels
self.ax.set_ylabel('Processes')
self.ax.set_xlabel('Time Taken by Each Process')
#Setting y-axis ticks
ytick = [(i + 1) * 10 for i in range(len(processes_name) + 1)]
self.ax.set_xticks(np.arange(0, total_burst + 1, 1))
self.ax.set_yticks(ytick)
######self.ax.set_yticklabels(["self.processes_name"," "," "," "])
#self.ax.grid(True)
self.ax.grid(axis='x')
def draw(self, name, start_time, end_time):
no = int(name[1:])
name = name.title()
colors = ['blue','#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf', '#1f77b4','#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
'#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf']
color = []
for i in range(0,len(self.processes_name)+1):
color = colors[i]
# Declearing a bar in the schedule
#self.ax.broken_barh([(start_time, end_time - start_time)], ((no * 10) - 4, 7), facecolors=('tab:blue'))
self.ax.broken_barh([(start_time, end_time - start_time)], (0,8), facecolors=colors[no])
#for i in range(0, len(self.processes_name)):
# x = start_time + (end_time-start_time)/2
# y = 4
s = name[0:]
self.ax.text(start_time + (end_time-start_time)/2, 4, s=s, ha='center',va='bottom', fontsize =10, fontweight = "bold")
self.ax.spines['left'].set_visible(False)
self.ax.spines['bottom'].set_visible(False)
self.ax.spines['top'].set_visible(False)
self.ax.spines['right'].set_visible(False)
self.ax.set_axisbelow(True)
def swapPositions(self,list, pos1, pos2):
list[pos1], list[pos2] = list[pos2], list[pos1]
return list
def sorting(self,proc, arr, pior, Exc):
for i in range(0, len(proc) - 1):
for j in range(0, len(proc) - 1):
if (arr[j] > arr[j + 1]):
proc =self.swapPositions(proc, j, j + 1)
arr = self.swapPositions(arr, j, j + 1)
pior = self.swapPositions(pior, j, j + 1)
Exc = self.swapPositions(Exc, j, j + 1)
elif (arr[j] == arr[j + 1]):
if (pior[j] > pior[j + 1]):
proc = self.swapPositions(proc, j, j + 1)
arr = self.swapPositions(arr, j, j + 1)
pior = self.swapPositions(pior, j, j + 1)
Exc = self.swapPositions(Exc, j, j + 1)
def get_min_pos(self, list):
Min = 0
for x in range(len(list)):
Min = list[x]
if Min > 0:
break
for x in range(len(list)):
for y in range(x + 1, len(list)):
if (list[y] < Min and list[y] > 0):
Min = list[y]
return Min
def priorit(self,Processes_Names,priority,Burst_Time_List,Arrival_Time_List,Preemptive,Number_Of_Processes):
if not (Preemptive):
self.sorting(Processes_Names, Arrival_Time_List, priority, Burst_Time_List)
#########################
last_time = []
first_time = []
done = []
wt = []
########################## initial
Avr_waiting_Time = []
first_time.append(Arrival_Time_List[0])
last_time.append(Arrival_Time_List[0] + Burst_Time_List[0])
done.append(Processes_Names[0])
last_x = last_time[0]
Avr_waiting_Time.append(last_x - Arrival_Time_List[0] - Burst_Time_List[0])
################clear
Processes_Names.remove(done[0])
Arrival_Time_List.remove(Arrival_Time_List[0])
priority.remove(priority[0])
Burst_Time_List.remove(Burst_Time_List[0])
#####################
while not len(Processes_Names) == 0:
for i in range(0, len(Processes_Names)):
if (Arrival_Time_List[i] <= last_x):
wt.append(i)
#######wt not empty
if not len(wt) == 0:
first_time.append(last_x)
index = wt[0]
min = priority[index]
for i in range(1, len(wt)):
if priority[wt[i]] < min:
min = priority[wt[i]]
index = wt[i]
done.append(Processes_Names[index])
last_x = last_x + Burst_Time_List[index]
last_time.append(last_x)
Avr_waiting_Time.append(last_x - Arrival_Time_List[index] - Burst_Time_List[index])
##################
Processes_Names.remove(Processes_Names[index])
Arrival_Time_List.remove(Arrival_Time_List[index])
priority.remove(priority[index])
Burst_Time_List.remove(Burst_Time_List[index])
wt.clear()
else:
done.append(Processes_Names[0])
first_time.append(Arrival_Time_List[0])
last_x = Arrival_Time_List[0] + Burst_Time_List[0]
last_time.append(last_x)
Avr_waiting_Time.append(last_x - Arrival_Time_List[0] - Burst_Time_List[0])
################
Processes_Names.remove(Processes_Names[0])
Arrival_Time_List.remove(Arrival_Time_List[0])
priority.remove(priority[0])
Burst_Time_List.remove(Burst_Time_List[0])
Sum_avg_time = sum(Avr_waiting_Time) / Number_Of_Processes
for z in range(0, Number_Of_Processes):
self.draw(done[z], first_time[z], last_time[z])
##########################################################################
elif Preemptive:
last_x = 0
flag = 0
New_list_burst = []
New_list_Process = []
Arrived_List = []
New_priority = []
Avr_waiting_Time = []
#############################################################
# Sorting Lists by Arrival Time
##########################################################