gaddressf90.f90

mpi并行计算的c++代码 可用vc或gcc编译通过 可以用来搭建并行计算试验环境

! This file created from test/mpi/f77/datatype/gaddressf.f with f77tof90
! -*- Mode: Fortran; -*- 
!
!
!  (C) 2003 by Argonne National Laboratory.
!      See COPYRIGHT in top-level directory.
!
      program main
      use mpi
      integer max_asizev
      parameter (max_asizev=2)
      integer (kind=MPI_ADDRESS_KIND) asize, asizev(max_asizev)

      integer iarray(200), gap, intsize
      integer ierr, errs

      errs = 0

      call MPI_Init(ierr)

      call MPI_Get_address( iarray(1), asizev(1), ierr )
      call MPI_Get_address( iarray(200), asizev(2), ierr )
      gap = asizev(2) - asizev(1)

      call MPI_Type_size( MPI_INTEGER, intsize, ierr )

      if (gap .ne. 199 * intsize) then
         errs = errs + 1
         print *, ' Using get_address, computed a gap of ', gap
         print *, ' Expected a gap of ', 199 * insize
      endif
      if (errs .gt. 0) then
          print *, ' Found ', errs, ' errors'
      else
          print *, ' No Errors'
      endif

      call MPI_Finalize( ierr )
      end