MPI

#include<stdio.h>
#include<mpi.h>
#include<stdlib.h>
void initialize(float* inarray, int n)
{ int
i;
float sum=0;
for (i=0; i<n; i++)
{
inarray[i] = random() / (float)RAND_MAX;
printf("%f\t",inarray[i]);
sum=sum+inarray[i];
}
printf("\nTotal sum is : %f \n",sum);
}
void main(int argc, char* argv[])
{
MPI_Comm comm=MPI_COMM_WORLD;
int numnodes, myid, ierr;
ierr=MPI_Init(&argc, &argv);
ierr=MPI_Comm_size(comm, &numnodes);
ierr=MPI_Comm_rank(comm, &myid);
int n = 100;
float *x = malloc(sizeof(float)*n);
initialize(x, n);
ierr=MPI_Finalize();
}