USE SIMPLE PYTHON CODE TO COMPLETE Basic version with two levels of threads (master and slaves) One master thread aggregates and sums the result of n slave-threads where each slavethread sums a different range of values in an array of 1000 random integers (please  program to generate 1000 random integers to populate the array). The number of slave-threads is a parameter which the user can change. For example, if the  user chooses 4 slave threads, each slave thread will sum 1000/4 = 250 numbers. If the user  chooses 3 slave threads, the first two may each sum 333 numbers and the third slave thread sums the rest 334 numbers. 2) Advanced version with more than two levels of threads The master thread creates two slave-threads where each slave-thread is responsible to sum  half segment of the array.  Each slave thread will fork/spawn two new slave-threads where each new slave-thread sums half of the array segment received by its parent. Each slave thread will return the  subtotal to its parent thread and the parent thread aggregates and returns the total to its  parent thread. Start with 7 nodes thread tree, when you are comfortable, you can extend it  to a full thread tree.  *** HERE IS MULTI PROCESSING REPLACE WITH MULTI THREADING PART 1 AND PART 2 PLEASE *** BASIC VERSION PART 1 import multiprocessing import random def sum_range(arr, start, end):     #Calculates the sum of a range of values in an array.     return sum(arr[start:end]) def sum_array(arr, num_processes):     #Sums the values in an array using multiple processes.     pool = multiprocessing.Pool(num_processes)     chunk_size = len(arr) // num_processes     results = []     for i in range(num_processes):         start = i * chunk_size         end = start + chunk_size if i < num_processes - 1 else len(arr)         result = pool.apply_async(sum_range, args=(arr, start, end))         results.append(result)     total = sum(result.get() for result in results)     pool.close()     pool.join()     return total if __name__ == '__main__':     num_processes = 4     arr = [random.randint(1, 100) for _ in range(1000)]     total = sum_array(arr, num_processes)     print(f'Total: {total}') ***MORE ADVANCE VERSION PART 2 BELOW*** import multiprocessing import random def sum_range(arr, start, end):     #Calculates the sum of a range of values in an array.     return sum(arr[start:end]) def sum_array(arr, num_processes):     #Sums the values in an array using a multi-level process tree.     if num_processes == 1:         return sum_range(arr, 0, len(arr))     else:         pool = multiprocessing.Pool(num_processes)         chunk_size = len(arr) // num_processes         results = []         for i in range(num_processes):             start = i * chunk_size             end = start + chunk_size if i < num_processes - 1 else len(arr)             result = pool.apply_async(sum_range, args=(arr, start, end))             results.append(result)         subtotals = [result.get() for result in results]         pool.close()         pool.join()         return sum_array(subtotals, num_processes // 2) if __name__ == '__main__':     num_processes = 7     arr = [random.randint(1, 100) for _ in range(1000)]     total = sum_array(arr, num_processes)     print(f'Total: {total}')

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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USE SIMPLE PYTHON CODE TO COMPLETE

Basic version with two levels of threads (master and slaves)


One master thread aggregates and sums the result of n slave-threads where each slavethread sums a different range of values in an array of 1000 random integers (please 
program to generate 1000 random integers to populate the array).


The number of slave-threads is a parameter which the user can change. For example, if the 
user chooses 4 slave threads, each slave thread will sum 1000/4 = 250 numbers. If the user 
chooses 3 slave threads, the first two may each sum 333 numbers and the third slave thread
sums the rest 334 numbers.


2) Advanced version with more than two levels of threads
The master thread creates two slave-threads where each slave-thread is responsible to sum 
half segment of the array. 


Each slave thread will fork/spawn two new slave-threads where each new slave-thread
sums half of the array segment received by its parent. Each slave thread will return the 
subtotal to its parent thread and the parent thread aggregates and returns the total to its 
parent thread. Start with 7 nodes thread tree, when you are comfortable, you can extend it 
to a full thread tree. 

*** HERE IS MULTI PROCESSING REPLACE WITH MULTI THREADING PART 1 AND PART 2 PLEASE ***

BASIC VERSION PART 1

import multiprocessing
import random

def sum_range(arr, start, end):
    #Calculates the sum of a range of values in an array.
    return sum(arr[start:end])

def sum_array(arr, num_processes):
    #Sums the values in an array using multiple processes.
    pool = multiprocessing.Pool(num_processes)
    chunk_size = len(arr) // num_processes
    results = []

    for i in range(num_processes):
        start = i * chunk_size
        end = start + chunk_size if i < num_processes - 1 else len(arr)
        result = pool.apply_async(sum_range, args=(arr, start, end))
        results.append(result)

    total = sum(result.get() for result in results)
    pool.close()
    pool.join()

    return total

if __name__ == '__main__':
    num_processes = 4
    arr = [random.randint(1, 100) for _ in range(1000)]
    total = sum_array(arr, num_processes)
    print(f'Total: {total}')

***MORE ADVANCE VERSION PART 2 BELOW***

import multiprocessing
import random

def sum_range(arr, start, end):
    #Calculates the sum of a range of values in an array.
    return sum(arr[start:end])

def sum_array(arr, num_processes):
    #Sums the values in an array using a multi-level process tree.
    if num_processes == 1:
        return sum_range(arr, 0, len(arr))
    else:
        pool = multiprocessing.Pool(num_processes)
        chunk_size = len(arr) // num_processes
        results = []

        for i in range(num_processes):
            start = i * chunk_size
            end = start + chunk_size if i < num_processes - 1 else len(arr)
            result = pool.apply_async(sum_range, args=(arr, start, end))
            results.append(result)

        subtotals = [result.get() for result in results]
        pool.close()
        pool.join()

        return sum_array(subtotals, num_processes // 2)

if __name__ == '__main__':
    num_processes = 7
    arr = [random.randint(1, 100) for _ in range(1000)]
    total = sum_array(arr, num_processes)
    print(f'Total: {total}')

 

 

 

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