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NAME

       MPI_Comm_test_inter -  Tests to see if a comm is an inter-communicator

SYNOPSIS

       #include "mpi.h"
       int MPI_Comm_test_inter ( MPI_Comm comm, int *flag )

INPUT PARAMETER

       comm   - communicator (handle)

OUTPUT PARAMETER

       flag   - (logical)

NOTES FOR FORTRAN

       All  MPI  routines  in  Fortran  (except  for MPI_WTIME and MPI_WTICK ) have an additional
       argument ierr at the end of the argument list.  ierr  is  an  integer  and  has  the  same
       meaning  as  the  return  value  of  the  routine  in  C.   In  Fortran,  MPI routines are
       subroutines, and are invoked with the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran.

ERRORS

       All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value;  C  routines  as
       the  value of the function and Fortran routines in the last argument.  Before the value is
       returned, the current MPI error handler is called.  By default, this error handler  aborts
       the  MPI  job.   The error handler may be changed with MPI_Errhandler_set ; the predefined
       error handler MPI_ERRORS_RETURN may be used to cause error values to  be  returned.   Note
       that MPI does not guarentee that an MPI program can continue past an error.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_COMM
              -  Invalid  communicator.   A  common error is to use a null communicator in a call
              (not even allowed in MPI_Comm_rank ).
       MPI_ERR_ARG
              - Invalid argument.  Some argument is invalid and is not identified by  a  specific
              error class (e.g., MPI_ERR_RANK ).

LOCATION

       comm_testic.c

                                            11/14/2001                     MPI_Comm_test_inter(3)