What impact does the thread count (-n) have on the result of the program? Exists an of-n value that ensures there won't be a deadlock?
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What impact does the thread count (-n) have on the result of the program? Exists an of-n value that ensures there won't be a deadlock?
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- Write a program using pthreads, which calculates the sum of elements in a hard-coded integer array in parallel using 4 threads. The program must divide the work between 4 threads which run simultaneously. For simplicity, you can assume that the size of the array is 100. Note that the integer array must be declared as a global data structure. Initially code your solution so that the sum of elements is maintained in a global shared variable. Each thread modifies the same shared variable as it sums up elements from the array. Use a suitable synchronization primitive (mutex) to ensure safe access to the global variable. (A sample code of Mutex is attached for your reference)...also put screenshot of output.Improve the binary tree search program by associating a lock with each node in the tree (as opposed to a single lock with the entire tree). A thread locks a node when it reads or writes it. Examine the performance properties of this implementation.Can you help me with this code because i don't know what to do with this code, this code has to be in C. question that I need help with:You need to use the pthread for matrix multiplication. Each threadfrom the threadpool should be responsible for computing only a partof the multiplication (partial product as shown in the above picture –all Ti(S) are called a partical product). Your main thread should splitthe matrices accordingly and create the partial data arrays that areneeded to compute each Ti. You must create a unique task with thedata and submit it to the job queue. You can compute the partialproducts concurrently as long as you have threads available in thethreadpool. You have to remove the task the from queue and submitto a thread in the threadpool. You should define the number ofthreads to be 5 and keep it dynamic so that we can test the samecode with a higher or lower number of threads as needed. When allthe partial products are computed all the threads in the…
- Please answer the follwoing regarding the java code: When looking at the code below, assume that the MyThread and MyRunnable classes are correctly implemented in other files. How many threads are there in the program shown below? (Be careful to consider ALL the threads!)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 threadsums the rest 334 numbers. 2) Advanced version with more than two levels of threadsThe 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-threadsums half of the array segment received by its parent. Each slave thread will return the subtotal to its parent…Complete the following code. The goal is to implement the producer-consumer problem. You are expected to extend the provided C code to synchronize the thread operations consumer() and producer() such that an underflow and overflow of the queue is prevented. You are not allowed to change the code for implementing the queue operations, that is the code between lines 25 and 126 as shown in the Figure below. You must complete the missing parts between lines 226-261 as shown in the screenshot.
- Can you please help me with this code because I am struggling on how to do this, This has to be in C code. question that I need help with: Write a multithreaded program that calculates various statistical values for a list of numbers. This program will be passed a series of numbers on the command line and will then create three separate worker threads. One thread will determine the average of the numbers, the second will determine the maximum value, and the third will determine the minimum value. For example, suppose your program is passed the integers 90 81 78 95 79 72 85 The program will report The average value is 82 The minimum value is 72 The maximum value is 95 The variables representing the average, minimum, and maximum values will be stored globally. The worker threads will set these values, and the parent thread will output the values once the workers have exited. (We could obviously expand this program by creating additional threads that determine other statistical values,…3. Implement mutual exclusion with multithreading in Java Build a Java program which simulates a communication between a server and clients. You must use a thread to represent each party (as server or client). (Hint: study about the Semaphore class to perform mutual exclusion between threads) Create three threads. One thread will act as a server, which always ready to receive a message from a client (ping) and then replies the message to the same client (pong). The other two threads will become the clients, where each client will send a message to the server (ping) and waits for the reply (pong). Define 2 different classes to represent the server and the client. To perform the communication, each thread will refer to a same variable/data structure for sending and receiving the message. Use mutual exclusion approach to ensure each client can send and receive the reply without interruption from any other client(s). For this simulation, your objective is to ensure that each client must…Explain why synchronization is necessary in the following situation:You have modeled a bank as an array of BankAccountobjects. Each BankAccount object has an associated thread, which transfers money from this bank account to another, randomly selected bank account in the same bank. The amount to transfer is the same for all transactions. The threads work in parallel.
- Consider the below Java code. import public class Semaphore Demo java.util.concurrent.Semaphore; Semaphore binarySema= new Semaphore (1); public static void main (String args[]) { final SemaphoreDemo sema DemoObj= new Semaphore Demo (); Thread td1= new Thread() ( public void run () { } }} } }; Thread td2= new Thread () { @Override public void run () { sema DemoObj.testMutualExclusion (); } sema DemoObj.testMutualExclusion (); tdl.start(); td2.start (); private void testMutualExclusion () { try { binarySema.acquire(); System.out.println (Thread.currentThread().getName()+ "inside the region of mutual exclusive."); Thread.sleep (1000); } catch (InterruptedException e) { ie.printStackTrace(); } finally ( System.out.println (Thread.currentThread().getName() + "outside the region of mutual exclusive."); What would be the output of the program?Exercise 1: Write a thread class TabPrinter that prints the elements of an array of integers (in one line) every 2 seconds 5 times. Use the way of extending the class thread. Write the main method which creates and starts three threads Printer which will print different arrays of integers. After that it prints "Main won’t wait. Main exits". Modify the above thread program so that you implement the interface Runnable. Make the main thread waiting till all other threads finish execution. ____________________________________________________________________________________________ Exercise 2: Write a thread class TextThread that prints a text every 1 second 10 times. Read the following main class. Try to guess what will be its output. class Test { public static void main(String s[]) throws Exception { TextThread x = new TextThread ("I am thread x"); TextThread y= new TextThread ("I am thread y"); System.out.println("I am Main thread"); } } Write it and execute it. Is the…Java: In this scenario, one thread is waiting for another thread to finish transfer and vice versa. They are stuck with each other, and the program cannot continue. Thus, deadlock occurs. To avoid deadlock it is necessary to lock accounts in the same order. To fix the program we’ll give each account a unique number so that we can lock accounts in the same order when transferring the money. // // DeadlockAccounts.java // public class DeadlockAccounts { public static void main(String[] args) throws InterruptedException { class Account { int balance = 100; public Account(int balance) { this.balance = balance; } public synchronized void deposit(int amount) { balance += amount; } public synchronized boolean withdraw(int amount) { if (balance >= amount) { balance -= amount; return true; } return false; } public synchronized boolean transfer(Account destination, int amount) { if (balance >= amount) { balance -= amount; synchronized(destination) {…
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