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MPI_File_iread_at(3)                  MPI                 MPI_File_iread_at(3)

NAME
       MPI_File_iread_at -  Nonblocking read using explict offset

SYNOPSIS
       #ifdef HAVE_MPI_GREQUEST
       #include "mpiu_greq.h"
       #endif

       int MPI_File_iread_at(MPI_File mpi_fh, MPI_Offset offset, void *buf,
                             int count, MPI_Datatype datatype,
                             MPIO_Request *request)

INPUT PARAMETERS
       fh     - file handle (handle)
       offset - file offset (nonnegative integer)
       count  - number of elements in buffer (nonnegative integer)
       datatype
              - datatype of each buffer element (handle)

OUTPUT PARAMETERS
       buf    - initial address of buffer (choice)
       request
              - request object (handle)

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.

LOCATION
       mpi-io/iread_at.c

                                   11/2/2007              MPI_File_iread_at(3)