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tha 32 bit virtual address is divided into fields as follows: 5. Challenge: For the following...
so in this code, it computes the sum 1+2+....+n but i want it to compute 2*(1+2+....+n)...
so in this code, it computes the sum 1+2+....+n but i want it to compute 2*(1+2+....+n) using semaphores implement solution to the critical section problem #include #include int sum; /* this data is shared by the thread(s) */ void *runner(void *param); /* threads call this function */ int main(int argc, char *argv[]) { pthread_t tid; /* the thread identifier */ pthread_attr_t attr; /* set of thread attributes */ if (argc != 2) { fprintf(stderr,"usage: a.out \n"); return -1; } if...
In C using the following 2 files to create a 3rd file that uses multiple threads...
In C using the following 2 files to create a 3rd file that uses multiple threads to improve performance. Split the array into pieces and each piece is handled by a different thread. Use 8 threads. run and compile in linux. #include <stdio.h> #include <sys/time.h> #define BUFFER_SIZE 4000000 int countPrime=0; int numbers[BUFFER_SIZE]; int isPrime(int n) { int i; for(i=2;i<n;i++) if (n%i==0) return 0; return 1; } int main() { int i; // fill the buffer for(i=0;i<BUFFER_SIZE;i++) numbers[i] = (i+100)%100000; //...
Using C programming please 5. Write a multithreaded program to do the following: Accepts two positive...
Using C programming please
5. Write a multithreaded program to do the following: Accepts two positive integers from the command line as the amounts to withdraw a. and deposit from an account. b. Creates two threads to perform withdraw and deposit operations repectively. Passes the amount to withdraw/deposit as the parameter to thread's runner function c. Waits for both threads to terminate. Since both threads need to update the account balance, it is necessary to protect sections. You may use...
Debugging and testing multithreaded programs is made more difficult compared to dealing with single-threaded programs by...
Debugging and testing multithreaded programs is made more difficult compared to dealing with single-threaded programs by: 1. the necessity to divide activities into separate and concurrent tasks 2. the existence of many more different execution paths made possible by parallel thread execution 3. multithreading library APIs with confusing semantics -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Consider the following code that creates N threads using the POSIX threading library. The thread function threadFun receives as parameter a thread index (from 0 to N-1). #define NTHREADS 4...
1. (50 pts) Write a C or C++ program A6p1.c(pp) that accepts one command line argument which is an integer...
1. (50 pts) Write a C or C++ program A6p1.c(pp) that accepts one command line argument which is an integer n between 2 and 6 inclusive. Generate a string of 60 random upper case English characters and store them somewhere (e.g. in a char array). Use pthread to create n threads to convert the string into a complementary string ('A'<>'Z', 'B'<->'Y', 'C''X', etc). You should divide this conversion task among the n threads as evenly as possible, Print out the...
C 155 (d 105.5 4. The following is apiece of C# code. Explain what it will...
C 155 (d 105.5 4. The following is apiece of C# code. Explain what it will do. using System using System.Collections.Generic; using System.Ling using System.Text using System. Threading.Tasks using System.Threading Inamespace testThreading class Program static Thread[] threads new Thread[10] static Semaphore sem new Semaphore(3, 3) static void Csharpcorner() Console.iriteline( o is waiting in line... ", Thread.Current Thread.None) sem.Waitone); Thread.Current Thread. Name); Console.Mriteline( (o enters the C-sharpcorner!", Thread.Sleep(38e); Console.kiriteline("(e) is leaving the C_sharpcorner", Thread.Current sem.Release); static void Main(stringt] args) for (int...
I am supposed to write documentation and report for the code below but I am new...
I am supposed to write documentation and report for the code below but I am new to operating system concepts I will appreciate if someone can help make a detailed comment on each line of code for better understanding. Thanks #include <pthread.h> #include <string.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <ctype.h> #define handle_error_en(en, msg) \ do { errno = en; perror(msg); exit(EXIT_FAILURE); } while (0) #define handle_error(msg) \ do { perror(msg); exit(EXIT_FAILURE); } while (0) struct thread_info...
//In this assignment, we use multiple threads to calculate the sum // 1*1 + 2*2 +...
//In this assignment, we use multiple threads to calculate the sum // 1*1 + 2*2 + 3*3 + 4*4 + ... + n*n // Note we should know from CSE2500 that this sum is // n*(n+1)*(2*n+1)/6 // We a n value, we will create 2*n threads to do the calculation so that // we can have a race condition. // Before you change the code, read the code and run the code and see what // happens. Do we already...
//In this assignment, we use multiple threads to calculate the frequencies of the first digits //of...
//In this assignment, we use multiple threads to calculate the frequencies of the first digits //of the numbers in an array of long integers #include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <assert.h> //#define NUM_THREADS 2 #define DIGITS 10 #define MAX 100000000 unsigned long a[MAX]; struct thread_data { int thread_num; int i, j; //the staring and ending index unsigned long freq[DIGITS]; // results }; //initialize the array void init_array(unsigned...
Do the following project: Following is the file to be programmed in Linux kernel. Run this...
Do the following project: Following is the file to be programmed
in Linux kernel. Run this program. Include the screenshot of the
results.
Multi threaded Sorting Application
Write a multithreaded sorting program that works as follows: A
list of integers is divided into two smaller lists of equal size.
Two separate threads (which we will term sorting threads) sort each
sub list using a sorting algorithm of your choice. The two sub
lists are then merged by a third thread—a...
Using C programming please
5. Write a multithreaded program to do the following: Accepts two positive integers from the command line as the amounts to withdraw a. and deposit from an account. b. Creates two threads to perform withdraw and deposit operations repectively. Passes the amount to withdraw/deposit as the parameter to thread's runner function c. Waits for both threads to terminate. Since both threads need to update the account balance, it is necessary to protect sections. You may use...
1. (50 pts) Write a C or C++ program A6p1.c(pp) that accepts one command line argument which is an integer n between 2 and 6 inclusive. Generate a string of 60 random upper case English characters and store them somewhere (e.g. in a char array). Use pthread to create n threads to convert the string into a complementary string ('A'<>'Z', 'B'<->'Y', 'C''X', etc). You should divide this conversion task among the n threads as evenly as possible, Print out the...
C 155 (d 105.5 4. The following is apiece of C# code. Explain what it will do. using System using System.Collections.Generic; using System.Ling using System.Text using System. Threading.Tasks using System.Threading Inamespace testThreading class Program static Thread[] threads new Thread[10] static Semaphore sem new Semaphore(3, 3) static void Csharpcorner() Console.iriteline( o is waiting in line... ", Thread.Current Thread.None) sem.Waitone); Thread.Current Thread. Name); Console.Mriteline( (o enters the C-sharpcorner!", Thread.Sleep(38e); Console.kiriteline("(e) is leaving the C_sharpcorner", Thread.Current sem.Release); static void Main(stringt] args) for (int...
Do the following project: Following is the file to be programmed
in Linux kernel. Run this program. Include the screenshot of the
results.
Multi threaded Sorting Application
Write a multithreaded sorting program that works as follows: A
list of integers is divided into two smaller lists of equal size.
Two separate threads (which we will term sorting threads) sort each
sub list using a sorting algorithm of your choice. The two sub
lists are then merged by a third thread—a...
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