text: #include "stdio.h"
  #include "mpi.h"
  
  
  int main(int argc, char** argv)
  {
  	MPI_Init(&argc, &argv);
  	int rank = 0;
  	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  
  	int buf[7] = {10, 20, 30, 40, 50, 60, 70};
  	int recv_buf[3] = {0, 0, 0};
  	MPI_Scatter(buf, 2, MPI_INT, recv_buf, 3, MPI_INT, 0, MPI_COMM_WORLD);
  	printf("rank: %d %d %d %d\n", rank, recv_buf[0], recv_buf[1], recv_buf[2]);
  	return 0;
  }
  