MPIFilereadatallend(3OpenMPI) MPIFilereadatallend(3OpenMPI)

NAME
       MMPPIIFFiilleerreeaaddaattaalllleenndd  -  Reads  a file at explicitly specified off-
       sets; ending part of a split collective routine (blocking).


SSYYNNTTAAXX
       C Syntax
           #include 
           int MPIFilereadatallend(MPIFile fh, void *buf,
            MPIStatus *status)

       Fortran Syntax
           INCLUDE 'mpif.h'
           MPIFILEREADATALLEND(FH, BUF, STATUS, IERROR)
                          BUF(*)
                 INTEGER        FH, STATUS(MPISTATUSSIZE), IERROR


CC++++ SSyynnttaaxx
       #include 
       void MPI::File::Readatallend(void* buf, MPI::Status& status)

       void MPI::File::Readatallend(void* buf)


IINNPPUUTT PPAARRAAMMEETTEERR
       fh        File handle (handle).


OOUUTTPPUUTT PPAARRAAMMEETTEERRSS
       buf       Initial address of buffer (choice).

       status    Status object (status).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPIFilereadatallend is a split collective routine that stores  the
       number  of  elements  actually read from the file associated with fh in
       status.  MPIFilereadatallend blocks until the operation  initiated
       by MPIFilereadatallbegin completes. The data is taken out of those
       parts of the file specified by the current view. All  other  fields  of
       status are undefined.


NNOOTTEESS
       All  the  nonblocking  collective  routines for data access are "split"
       into two routines, each with begin or end as a  suffix.  These  split
       collective routines are subject to the semantic rules described in Sec-
       tion 9.4.5 of the MPI-2 standard.


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 200M6PIFilereadatallend(3OpenMPI)