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MPI_File_sync - Makes semantics consistent for data-access operations
(collective).
C Syntax
#include <mpi.h>
int MPI_File_sync(MPI_File fh)
INCLUDE ’mpif.h’
MPI_FILE_SYNC(FH, IERROR)
INTEGER FH, IERROR
#include <mpi.h>
void MPI::File::Sync()
- fh
- File handle (handle).
- IERROR
- Fortran
only: Error status (integer).
Calling MPI_File_sync with fh
causes all previous writes to fh by the calling process to be written
to permanent storage. If other processes have made updates to permanent
storage, then all such updates become visible to subsequent reads of fh
by the calling process.
MPI_File_sync is a collective operation. The user
is responsible for ensuring that all nonblocking requests on fh have been
completed before calling MPI_File_sync. Otherwise, the call to MPI_File_sync
is erroneous.
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.
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