hello1.c

并行算法实验用的源代码

/************************************************************************
 * Write an MPI "hello World!" program using the appropriate MPI calls.
 ************************************************************************/
#include	<stdio.h>
#include	<mpi.h>

void main(int argc, char *argv[])
{
  int rank, size;

  MPI_Init(&argc, &argv);

  MPI_Comm_rank(MPI_COMM_WORLD, &rank);

  /* Insert code to do conditional work if my rank is 0 */
  /* XXXXXXXXXXXXXXXXXXXXXXXXXXXX */
  
    MPI_Comm_size(MPI_COMM_WORLD, &size);

    /* XXXXXXXXXXXXXXXXXXXXXXXXXXXX */

  }

  MPI_Finalize();

}/* End Main */