MPI并行计算-简单输出

#include<stdio.h>
#include"mpi.h"
int main(int argc, char **argv){
    MPI_Comm comm = MPI_COMM_WORLD;
    int size ,rank;
    MPI_Init(&argc,&argv);
    MPI_Comm_size(comm,&size);
    MPI_Comm_rank(comm,&rank);
    printf("This is process %d of % process.\n",rank,size);
    MPI_Finalize();
    return 0;
}