Logo 
Search:

C Programming Articles

Submit Article
Home » Articles » C Programming » Parallel Processing ProgramsRSS Feeds

Program to do sum of the elements of the array using self scheduling

Posted By: Easy Tutor     Category: C Programming     Views: 4826

Write a program to do sum of the elements of the array using self scheduling.

Code for Program to do sum of the elements of the array using self scheduling in C Programming

/*        Sum of the elements of the array using self scheduling*/

# include <stdio.h>
# include "/usr/include/sys/types.h"
# include "/usr/include/sys/shm.h"
# include "/usr/include/sys/ipc.h"
# include "/usr/include/sys/sem.h"
# include "forkjoin.h"
# include "sharedlib.h"
# include "spinlock.h"
# define arrSize 10

int main()
{
    int arr[arrSize];            // Arrayint iCount;                // Counter Variableint *sum,*index,*lock;          // Shared Variablesint shmidsum,shmidindex,shmidlock;  // ShmID's For 3 Shared Variables        int i;                    // For Storing Index Value in Processesint id;                    // To Store ID of the Processesint nproc=5;                // Number of Processesint parsum;
    /*  Set Values in an Array */for(iCount=0;iCount<arrSize;iCount++)
    {
        arr[iCount]=iCount+1;
    }
    
    sum=(int*)sshared(sizeof(int),&shmidsum);
    index=(int*)sshared(sizeof(int),&shmidindex);
    lock=(int*)sshared(sizeof(int),&shmidlock);
    
    *sum=0;
    *index=0;
    
    spin_lock_init(lock);
    
    id=process_fork(nproc);    

    parsum=0;

    while(1)
    {
        spin_lock(lock);
            // Critical Region
            i=*index;
            *index=*index + 1;
        spin_unlock(lock);

            if(i>=arrSize)
            {
                break; // Exit the While Loop When// Becomes > arrSize
            }
        parsum=parsum + arr[i];        
        
    }

    spin_lock(lock);
        // Critical Region
        *sum=*sum + parsum;
    spin_unlock(lock);
    
    printf("\nPartial Sum of Process:%d is %d",id,parsum);
    process_join(nproc,id);


    printf("\n Final Sum is : %d\n", *sum);

    // Cleaning Shared Memory
    cleanup_memory(&shmidindex);
    cleanup_memory(&shmidsum);
    cleanup_memory(&shmidlock);

    return 0;    
}

  
Share: 



Easy Tutor
Easy Tutor author of Program to do sum of the elements of the array using self scheduling is from United States. Easy Tutor says

Hello Friends,

I am Free Lance Tutor, who helped student in completing their homework.

I have 4 Years of hands on experience on helping student in completing their homework. I also guide them in doing their final year projects.

I have share many programs on this website for everyone to use freely, if you need further assistance, than please contact me on easytutor.2ya [at the rate] gmail [dot] com

I have special discount scheme for providing tutor services. I am providing tutor service to students from various contries, currently most of my students are from United States, India, Australia, Pakistan, Germany, UK and Canada.

I am also here to expand my technical network to receive more opportunity in my career, make friends to help them in resolving their technical problem, learn and share my knowledge, If you like to be my friend, Please send me friend request.

Thanks,
Happy Programming :)

 
View All Articles

 
Please enter your Comment

  • Comment should be atleast 30 Characters.
  • Please put code inside [Code] your code [/Code].

 
No Comment Found, Be the First to post comment!