MPI_File_write_shared(3)           Open MPI           MPI_File_write_shared(3)



NAME
       MPI_File_write_shared - Writes a file using the shared file pointer
       (blocking, noncollective).


SYNTAX
       C Syntax
           #include <mpi.h>
           int MPI_File_write_shared(MPI_File fh, void *buf, int count,
                  MPI_Datatype datatype, MPI_Status *status)

       Fortran Syntax
           INCLUDE 'mpif.h'
           MPI_FILE_WRITE_SHARED(FH, BUF, COUNT, DATATYPE, STATUS, IERROR)
                 <type>         BUF(*)
                 INTEGER        FH, COUNT, DATATYPE, STATUS(MPI_STATUS_SIZE),
                                IERROR


C++ Syntax
       #include <mpi.h>
       void MPI::File::Write_shared(const void* buf, int count,
            const MPI::Datatype& datatype, MPI::Status& status)

       void MPI::File::Write_shared(const void* buf, int count,
            const MPI::Datatype& datatype)


INPUT/OUTPUT PARAMETER
       fh        File handle (handle).


INPUT PARAMETERS
       buf       Initial address of buffer (choice).

       count     Number of elements in buffer (integer).

       datatype  Data type of each buffer element (handle).


OUTPUT PARAMETERS
       status    Status object (status).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPI_File_write_shared is a blocking routine that uses the shared file
       pointer to write files. The order of serialization is not deterministic
       for this noncollective routine.


ERRORS
       Almost all MPI routines return an error value; C routines as the value
       of the function and Fortran routines in the last argument. C++
       functions do not return errors. If the default error handler is set to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is
       called. For MPI I/O function errors, the default error handler is set
       to MPI_ERRORS_RETURN. The error handler may be changed with
       MPI_File_set_errhandler; the predefined error handler
       MPI_ERRORS_ARE_FATAL may be used to make I/O errors fatal. Note that
       MPI does not guarantee that an MPI program can continue past an error.




1.4.1                            Jan 14, 2010         MPI_File_write_shared(3)
