NAME

       MPI_Comm_dup_with_info -  Duplicates an existing communicator with all its cached information

SYNOPSIS

       #ifdef ENABLE_QMPI
       #ifndef MPICH_MPI_FROM_PMPI
       int QMPI_Comm_dup_with_info(QMPI_Context context, int tool_id, MPI_Comm comm, MPI_Info info,
       MPI_Comm *newcomm) MPICH_API_PUBLIC

INPUT PARAMETERS

       comm   - communicator (handle)
       info   - info object (handle)

OUTPUT PARAMETERS

       newcomm
              - copy of comm (handle)

NOTES

       MPI_Comm_dup_with_info  behaves  exactly  as  MPI_Comm_dup except that the info hints associated with the
       communicator comm are not duplicated in newcomm.  The hints provided by the argument info are  associated
       with the output communicator newcomm instead.

THREAD AND INTERRUPT SAFETY

       This routine is thread-safe.  This means that this routine may be safely used by multiple threads without
       the  need  for  any  user-provided thread locks.  However, the routine is not interrupt safe.  Typically,
       this is due to the use of memory allocation routines such as malloc or other non-MPICH  runtime  routines
       that are themselves not interrupt-safe.

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_Comm_set_errhandler   (for   communicators),   MPI_File_set_errhandler   (for   files),    and
       MPI_Win_set_errhandler  (for  RMA windows).  The MPI-1 routine MPI_Errhandler_set may be used but its use
       is deprecated.  The predefined error handler MPI_ERRORS_RETURN may be used to cause error  values  to  be
       returned.   Note that MPI does not guarantee that an MPI program can continue past an error; however, MPI
       implementations will attempt to continue whenever possible.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.

       MPI_ERR_ARG
              - Invalid argument.  Some argument is invalid and is not identified  by  a  specific  error  class
              (e.g., MPI_ERR_RANK ).
       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_INFO
              - Invalid Info
       MPI_ERR_OTHER
              - Other error; use MPI_Error_string to get more information about this error code.

SEE ALSO

       MPI_Comm_dup, MPI_Comm_free, MPI_Keyval_create,  MPI_Attr_put,  MPI_Attr_delete,  MPI_Comm_create_keyval,
       MPI_Comm_set_attr, MPI_Comm_delete_attr

                                                    1/21/2022                          MPI_Comm_dup_with_info(3)