MPI_File_write_at - Write using explicit offset


SYNOPSIS

       C:

            #include "mpi.h"

            int MPI_File_write_at(MPI_File fh, MPI_Offset offset,
            void *buf, int count, MPI_Datatype datatype,
            MPI_Status *status)

       Fortran:

            INCLUDE "mpif.h" (or USE MPI)

            <type> BUF(*)
            INTEGER fh, count, datatype, status(MPI_STATUS_SIZE),
            ierror
            INTEGER(KIND=MPI_OFFSET_KIND) offset

            CALL MPI_FILE_WRITE_AT(fh, offset, buf, count,
            datatype, status, ierror)


DESCRIPTION

       MPI_File_write_at writes a file beginning at the position
       specified by offset.

       MPI_File_write_at accepts the following arguments:

       fh        Specifies the file handle (handle)

       offset    Specifies the file offset (nonnegative integer)

       buf       Specifies the initial address of the buffer
                 (choice)

       count     Specifies the number of elements in the buffer
                 (nonnegative integer)

       datatype  Specifies the data type of each buffer element
                 (handle)

       status    Returns the status object (status)

       ierror    Specifies the return code value for successful
                 completion, which is in MPI_SUCCESS.
                 MPI_SUCCESS is defined in the mpif.h file.

   Notes for Fortran
       All MPI objects (for example, MPI_Datatype, MPI_Comm,
       MPI_File) are of type INTEGER.

       MPI_File_open(3), MPI_File_write(3), MPI_IO(3)


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