MPIFileiwriteshared(3OpenMPI) MPIFileiwriteshared(3OpenMPI)

NAME
       MMPPIIFFiilleeiiwwrriitteesshhaarreedd  -  Writes  a file using the shared file pointer
       (nonblocking, noncollective).




SSYYNNTTAAXX
       C Syntax
           #include 
           int MPIFile(MPIFile fh, void *buf, int count, MPIDatatype
                  datatype, MPIRequest *request)

       Fortran Syntax
           INCLUDE 'mpif.h'
           MPIFile(FH, BUF, COUNT, DATATYPE, REQUEST, IERROR)
                          BUF(*)
                 INTEGER        FH, COUNT, DATATYPE, REQUEST, IERROR


CC++++ SSyynnttaaxx
       #include 
       MPI::Request MPI::File::Iwriteshared(const void* buf, int count,
            const MPI::Datatype& datatype)


IINNPPUUTT//OOUUTTPPUUTT PPAARRAAMMEETTEERR
       fh        File handle (handle).


IINNPPUUTT PPAARRAAMMEETTEERRSS
       count     Number of elements in buffer (integer).

       datatype  Data type of each buffer element (handle).


OOUUTTPPUUTT PPAARRAAMMEETTEERRSS
       buf       Initial address of buffer (choice).

       request   Request object (handle).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPIFileiwriteshared is a nonblocking routine that  uses  the  shared
       file  pointer  to write files. The order of serialization is not deter-
       ministic for this noncollective routine, so you need to use other meth-
       ods of synchronization to impose a particular order.


EERRRROORRSS
       Almost  all MPI routines return an error value; C routines as the value
       of the function and Fortran routines in the last  argument.  C++  func-
       tions  do  not  return  errors.  If the default error handler is set to
       MPI::ERRORSTHROWEXCEPTIONS, 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   MPIERRORSRETURN.   The   error   handler  may  be  changed  with
       MPIFileseterrhandler;     the     predefined      error      handler
       MPIERRORSAREFATAL  may  be  used to make I/O errors fatal. Note that
       MPI does not guarantee that an MPI program can continue past an  error.




Open MPI 1.2                    September 2006MPIFileiwriteshared(3OpenMPI)