File: allredint8f.f

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mpich 4.3.0%2Breally4.2.1-1
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C
C Copyright (C) by Argonne National Laboratory
C     See COPYRIGHT in top-level directory
C

      program main
      implicit none
      include 'mpif.h'
      integer*8 inbuf, outbuf
      integer errs, ierr

      errs = 0
      
      call mtest_init( ierr )
C
C A simple test of allreduce for the optional integer*8 type

      call mpi_allreduce(inbuf, outbuf, 1, MPI_INTEGER8, MPI_SUM, 
     &                   MPI_COMM_WORLD, ierr)
      
      call mtest_finalize( errs )
      end