The B_____method of threads begins but does not execute a thread. The ______ method executes a thread.
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The B_____method of threads begins but does not execute a thread. The ______ method executes a thread.
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- No screenshot needed, just explain the program and answer the red question to copy program /* Multi-threaded example */ #include <stdio.h> #include <stdlib.h> #include <pthread.h> #define NUM_THREADS 10 /*This data is shared by the thread(s) */ pthread_t tid[NUM_THREADS]; /*This is the thread function */ void *runner(void *param); int main(int argc, char *argv[]) { int i; pthread_attr_t attr; printf("I am the parent thread\n"); /* get the default attributes */ pthread_attr_init(&attr); /* set the scheduling algorithm to PROCESS(PCS) or SYSTEM(SCS) */ pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); /* set the scheduling policy - FIFO, RR, or OTHER */ pthread_attr_setschedpolicy(&attr, SCHED_OTHER); /* create the threads */ for (i = 0; i < NUM_THREADS; i++) pthread_create(&tid[i], &attr, runner, (void *) i); /* now join on each thread */ for (i = 0; i < NUM_THREADS; i++) pthread_join(tid[i], NULL); printf("I am the parent thread…The ______ method of threads begins but does not execute a thread. The ____method executes a thread.15. It is also known that user credentials may be available in a remote database. The wanted user credentials need to be downloaded from a remote database. While the main thread executing the local processing, because an external database is accessed over the Internet, data accessing is executed in another thread. As the remote data is downloaded in a thread, the data needs to be passed back to the main thread. The following statement ensures that the main thread is updated on the main queue. DispatchQueue._______._______ { // do something here }
- Parallel version 1 (Name this file as Q1_PLV1.java): o Repeat the sequential version using two threads along with the main thread. o Each thread creates a list of 25,000 students with randomly generated GPAs, randomly generated Ages, and sequential IDs. o Each of the two threads then calculates the average GPA and AGE (after creating the lists). o The two threads work in parallel. o The main thread waits for the two threads to finish and then calculates and prints the final average GPA and AGE from what is reported by the individual threads. • Parallel version 2 (Name this file as Q1_PLV2.java): o Repeat the Parallel version1 task using five threads (each is working on 10000 students) along with the main thread. To measure the time your computer takes to complete a certain task: • Read and store the current time (t1) before you start the task (e.g., before creating the lists), • After the task (e.g., after calculating the average), read and store the current time (t2). • The…Write complete Java code to define a thread for printing all the Odd Nos from 1 to 5000 which are divisible by 9. Thread must sleep for 5 seconds. Implement the threading using the Runnable java provided Interface. Finally, create three different threads with names ThreadOne, ThreadTwo and ThreadThree in main(). Execute the code in the file where threading is implemented. Apply the Java multithreading exception handling mechanism properlyCourse: Operating Systems write a multi-threadeddirectory copy program. The program will create destination directory and open thesource directory. Then for each file in the source directory it will create a thread. Thethread will copy file from source directory to the destination directory. At the end it willprint the number of files copied. Both the source and destination names will be passed ascommand line arguments. Sample execution is as follows:mtcopy.exe source_dir destination_dirCopied 8 files Note: The answer is availible on chegg.
- Assignment 5.py: #Assignment 5 import Queueimport threadingimport timeimport random THREADS = 200 class addingThread (threading.Thread):def __init__(self, l):threading.Thread.__init__(self)self.threadID = 3self.name = "addingThread"self.l = lself.iteration = 0 def run(self):#delay start by a random time between 0 and 0.1 secsleep_time= random.randint(1,1000)/10000.0time.sleep(sleep_time)while self.iteration < len(self.l):#remove the comment for Question 1.3#lock.acquire()self.l[self.iteration] = self.l[self.iteration] +1#remove the comment for Question 1.3#lock.release()self.iteration= self.iteration + 1#remove the comment for Question 1.3 #lock = threading.Lock()workList = range(1,101)threads = [] # Create new threadsthread_num=0while thread_num < THREADS:thread = addingThread(workList)threads.append(thread)thread_num = thread_num +1 # Start threadsfor t in threads:t.start() # Wait for all created threads to finishfor t in threads:t.join() #print final listprint "Final list:…calculate the number of memory bytes accessed by this program: void my_dgemv(int n, double* A, double* x, double* y) { #pragma omp parallel { int nthreads = omp_get_num_threads(); int thread_id = omp_get_thread_num(); printf("Hello world: thread %d of %d checking in. \n", thread_id, nthreads); } // insert your dgemv code here. you may need to create additional parallel regions, // and you may want to comment out the above parallel code block that prints out // nthreads and thread_id so as to not taint your timings #pragma omp parallel for // insert your code here: implementation of basic matrix multiply for(int i = 0; i < n; i++) { #pragma omp parallel for for(int j = 0; j < n; j++) { y[i] += A[i * n + j] * x[j]; } } }The Fibonacci sequence (https://en.wikipedia.org/wiki/Fibonacci_number) is the series of numbers 0, 1, 1, 2, 3, 5, 8, .... Write a multithreaded C++ program that generates the Fibonacci sequence using Pthread. The program should work as follows. The user will enter on the command line the number of Fibonacci numbers that the program is to generate. The program will then create a separate thread (child thread) that will generate the Fibonacci numbers, placing the sequence in a buffer/array (dynamically allocated in child thread). When the thread finishes execution, it returns the array to the calling/parent thread. Because the parent/calling thread cannot begin outputting the Fibonacci sequence until the child thread finishes, this will require having the parent/calling thread wait for the child thread to complete. You need to write the thread function and the main function. You may run & test your program in cs1 and copy-and-paste your code here for your answer. This problem aims…
- USE PYTHON MULTI THREADING TO COMPLETE DO NOT USE PROCESSES ONLY COMPLETE PART 2 using MULTI THREADING 1) 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). ************ONLY COMPLETE THIS PART BELOW*************** 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 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…Write a multi thread C++ code that adds an array of 1000 numbers. This program will be passed a number on the command line and then create threads accordingly. The array should be evenly distributed according to the number of threads. Each thread calculates its sum and then the main thread displays the final sum.1. In order to avoid deadlock between threads we can use a —— object. 2. A class —— another if its objects contain objects of the other class. Java a single word answer