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

Posted By: Viheke Fischer     Category: C Programming     Views: 6329

Program to find sum of the elements of the array using self scheduling.

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

# 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"// included in attachment 
# 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; } /* Output

[divyen@localhost pp-tw2]$ ./Prog02

Partial Sum of Process:1 is 55
Partial Sum of Process:2 is 0
Partial Sum of Process:3 is 0
Partial Sum of Process:4 is 0
Partial Sum of Process:0 is 0
Final Sum is : 55


*/
  
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Viheke Fischer
Viheke Fischer author of Program to find sum of the elements of the array using self scheduling is from Frankfurt, Germany.
 
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