Hi 

I got a problem of open MPI.

My program has 5 processes. 

All of them can run MPI_Finalize() and return 0. 

But, the whole program cannot be completed. 

In the MPI cluster job queue, it is strill in running status. 

If I use 1 process to run it, no problem.

Why ? 

My program:

int main (int argc, char **argv) 

{

MPI_Init(&argc, &argv);

MPI_Comm_rank(MPI_COMM_WORLD, &myRank);

MPI_Comm_size(MPI_COMM_WORLD, &mySize);

MPI_Comm world;

world = MPI_COMM_WORLD;

if (myRank == 0)

        {

do some things. 

}

if (myRank != 0)

       {

do some things. 

MPI_Finalize();

return 0 ;

}

if (myRank == 0)

        {

MPI_Finalize();

  return 0;

}

}

And, some output files get wrong codes, which can not be readible. 

In 1-process case, the program can print correct results to these output files . 

Any help is appreciated. 

thanks

Jack

Oct. 24 2010