You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.1 KiB
56 lines
1.1 KiB
5 years ago
|
#include <stdio.h>
|
||
|
|
#include "mpi.h"
|
||
|
|
|
||
|
|
main(int argc, char** argv) {
|
||
|
|
int my_rank;
|
||
|
|
int p,k,res,finres,a1,b1,num;
|
||
|
|
int source;
|
||
|
|
int target;
|
||
|
|
int tag1 = 50;
|
||
|
|
int tag2 = 60;
|
||
|
|
int endnum;
|
||
|
|
MPI_Status status;
|
||
|
|
|
||
|
|
|
||
|
|
MPI_Init(&argc, &argv);
|
||
|
|
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
|
||
|
|
MPI_Comm_size(MPI_COMM_WORLD, &p);
|
||
|
|
|
||
|
|
|
||
|
|
if (my_rank == 0) {
|
||
|
|
printf("Dose plithos aritmon:\n");
|
||
|
|
scanf("%d", &endnum);
|
||
|
|
for (target = 1; target < p; target++)
|
||
|
|
MPI_Send(&endnum, 1, MPI_INT, target, tag1, MPI_COMM_WORLD);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
MPI_Recv(&endnum, 1, MPI_INT, 0, tag1, MPI_COMM_WORLD, &status);
|
||
|
|
|
||
|
|
|
||
|
|
res = 0;
|
||
|
|
num = endnum/p;
|
||
|
|
a1 = (my_rank * num) + 1;
|
||
|
|
b1 = a1 + num - 1;
|
||
|
|
for (k=a1; k<=b1; k++)
|
||
|
|
res = res + (k*k);
|
||
|
|
|
||
|
|
|
||
|
|
if (my_rank != 0) {
|
||
|
|
MPI_Send(&res, 1, MPI_INT, 0, tag2, MPI_COMM_WORLD);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
finres = res;
|
||
|
|
printf("\n Apotelesma of process %d: %d\n", my_rank, res);
|
||
|
|
for (source = 1; source < p; source++) {
|
||
|
|
MPI_Recv(&res, 1, MPI_INT, source, tag2, MPI_COMM_WORLD, &status);
|
||
|
|
finres = finres + res;
|
||
|
|
printf("\n Apotelesma of process %d: %d\n", source, res);
|
||
|
|
}
|
||
|
|
printf("\n\n\n Teliko Apotelesma: %d\n", finres);
|
||
|
|
}
|
||
|
|
|
||
|
|
MPI_Finalize();
|
||
|
|
}
|
||
|
|
|
||
|
|
|