openmpi/examples/hello_f90.f90

!
! Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
!                         University Research and Technology
!                         Corporation.  All rights reserved.
! Copyright (c) 2004-2005 The Regents of the University of California.
!                         All rights reserved.
! Copyright (c) 2006      Cisco Systems, Inc.  All rights reserved.
!
! Sample MPI "hello world" application in Fortran 90
!
program main
    use mpi
    implicit none
    integer :: ierr, rank, size, len
    character*(MPI_MAX_LIBRARY_VERSION_STRING) :: version
    character*(MPI_MAX_OBJECT_NAME) :: name

    call MPI_INIT(ierr)
    call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierr)
    call MPI_COMM_SIZE(MPI_COMM_WORLD, size, ierr)
    call MPI_GET_LIBRARY_VERSION(version, len, ierr)
    print *, "Hello, world, I am ", rank, " of ", size," (", &
       version, ",", len, ")"
    call MPI_FINALIZE(ierr)
end