hw2-s24

Fill in the blanks:5. The ( 6 ) is used to implement mutual exclusion where it can be decremented by aprocess and incremented by another, but the value must either be 0 or 1.6. If deadlock prevention approach is used to deal with deadlocks in a system, the ( 7 )condition can be prevented using the direct method.7. Two threads may share the memory space, but they cannot share the same ( 8 )8. Consider round-robin (RR) scheduling algorithm is implemented with 2 seconds timeslice and it is now selecting a new process; if we have 3 blocked processes (A, B, and C),and A has been waiting the longest, then A would need to wait a period of ( 9 ) secondsto be selected.9. In real-time systems, if a task appears at random times, then it is considered ( 10 ).

Explain the terms "thread safety" and "race condition" in the context of multithreading.

CONCURRENT AND PARALLEL PROGRAMMING Implement a server class that control access to server using semaphores and listen to port 5555, also the server uses thread pools to manage client request, select a thread count that should optimal on thread count.

Is it possible, in your opinion, for a single threaded process to get deadlocked without affecting any other threads? If you could elaborate on your answer in the following sentence, that would be great.

doable without textbook

In what situations might thread preemption be problematic?

The following question is related to Threading   Task-1:  Write a c program that creates 5 threads and prints which thread is running and after the thread is closed, a new thread starts its execution. Each thread should run sequentially one by one.  OUTPUT:  thread-1 running thread-1 closed thread-2 running thread-2 closed

Part 3: Interrupt handling (30%)In Java multithreading environment, one thread can send an interrupt to another by calling theinterrupt() method on the Thread object for the target thread (i.e., the thread to beinterrupted). To handle interrupts in a target thread, Java allows two approaches. One is performedby writing an exception handler for InterruptedException (only applicable if the targetthread is invoking methods which throw that exception such as sleep). The other approach isperformed by periodically checking the interrupt status flag Thread.interrupted andperforming the handling routine when that flag is set to true.Write a Java program that illustrates the use of the two approaches described above. Your programshould start by creating two threads, each thread should use different interrupt handling approach.Then, the program needs to send interrupts to each one of the created threads such that a threadneeds to return (i.e., stop execution) after receiving an interrupt from…

In this particular situation, a solution that just makes use of a single thread is preferable than one that makes use of several threads.

Here, a solution that uses a single thread is preferable than one that uses several threads.

In this particular situation, a solution with a single thread is preferable than a solution with several threads.

Explain the concept of thread pool in the context of dynamic multithreading.

Lab 4 Directions Write a C program called threadcircuit to run on ocelot which will provide a multithreaded solution to the circuit-satisfiability problem which will compute for what combinations of input values will the circuit output the value 1. This is the sequential solution, which is also attached. You should create 6 threads and divide the 65,536 test cases among them. For example, if p=6, each thread would be responsible for roughly 65,536/6 number of iterations (if it's not divisible, some threads can end up with one more iteration than the others). The test cases must be allocated in a cyclic fashion one by one. #include <stdio.h>#include <sys/time.h>/* Return 1 if 'i'th bit of 'n' is 1; 0 otherwise */#define EXTRACT_BIT(n,i) ((n&(1<<i))?1:0)int check_circuit (int z) {  int v[16];        /* Each element is a bit of z */  int i;  for (i = 0; i < 16; i++) v[i] = EXTRACT_BIT(z,i);  if ((v[0] || v[1]) && (!v[1] || !v[3]) && (v[2] || v[3])…

Explain the concept of thread safety and race conditions. Provide a detailed example of a multithreaded program that demonstrates a race condition and propose a solution to eliminate it.

Answer the given question with a proper explanation and step-by-step solution.  show work

A deadlock condition can occur in concurrent code if two or more threads each hold a resource and are waiting for another thread to release a resource they need to proceed.   Question 10 options:   True   False

Explain the terms "thread safety" and "race condition" in the context of multithreaded programming. Provide an example of a situation where race conditions can occur and how to prevent them.

Please write your answer clearly .

Describe the difference between cooperative (or non-preemptive) multitasking in thread execution and non-cooperative (or preemptive) multitasking.

In the four diagrams illustrated below, show which of them result in deadlock? For those situations that will result in deadlock, provide the cycle of resources and threads. For those situations which are not in deadlock, show by illustration the order in which the threads may complete their executions

Describe the terms "thread synchronization" and "thread safety" in the context of multithreading.

Suppose I have two threads that perform a few operations, a mutex mx and a condition variable cond, as follows: Thread 1:{ q(); lock(mx); t(); wait(cond); unlock(mx); n(); } Thread 2:{ lock(mx); i(); signal(cond); 1(); unlock(mx); } Which of the following orderings are possible? Select ALL correct answers (The notation "a→b" means that the call to a() "happens before" the call to b().) O one of the threads could block forever, while the other thread finishes O q>i>l>t→n x O i>q>l>t→n x O i>q>t→n→I O q>i>t→I→n q→t→i>l»n[ O both threads could block forever Select all possible options that apply. e X 0%

Write a java program to create a Thread using Runnable Interface

Write java program for the following  Create a child thread class for calculating base b to the power p   Create a single object of each thread in the main thread, and stop the execution of main thread until the termination of all child threads using join method

One way to avoid deadlock is to schedule threads carefully. Assume the following characteristics of threads T1, T2, T3 and T4: • T1 (at some point) acquires and releases locks L1, L2 and L5 • T2 (at some point) acquires and releases locks L2, L3 and L4 • T3 (at some point) acquires and releases locks L1, L2 and L4 • T4 (at some point) acquires and releases locks L3, L4 and L5 For which schedules below is deadlock possible? (a) T4, T2, T3, and T1 run concurrently. (b) T1 and T2 run concurrently to completion, then T3 runs to completion, then T4 runs. (c) T1 and T3 run concurrently to completion, then T2 and T4 run concurrently to completion. O (d) T2 and T4 run concurrently to completion, then T1 runs to completion. (e) T1 and T4 run concurrently to completion, T1 finishes first after which T4 continuous to run to completion with T2. O

Use Ue CUR Question 10 Consider the following code: #pragma omp parallel for for(int i= 1:1<= 12; ++) a) = i Rewrite the code so the values of i assigned to each thread are the following: P1: 1, 2, 7, 8 P2: 3, 4, 9, 10 P3: 5, 6, 11, 12 Ise the editor to format vour answer

List the 4 conditions that can cause a deadlock for concurrent processes P1 and P2.   (short answer is ok)

Investigate how race conditions can be avoided by using a mutex and locks, as well as other thread management techniques in C++.

In the four diagrams illustrated below, show which of them result in deadlock? For those which are not in deadlock, show by illustration the order in which the threads may complete their executions situations that will result in deadlock, provide the cycle of resources and threads. For those situations