NAME¶
MPI_Win_get_group - Returns a duplicate of the group of the communicator
used to create the window.
SYNTAX¶
C Syntax¶
#include <mpi.h>
MPI_Win_get_group(MPI_Win win, MPI_Group *group)
Fortran Syntax¶
INCLUDE 'mpif.h'
MPI_WIN_GET_GROUP( WIN, GROUP, IERROR)
INTEGER WIN, GROUP, IERROR
C++ Syntax¶
#include <mpi.h>
MPI::Group MPI::Win::Get_group() const
- win
- Window object (handle).
OUTPUT PARAMETERS¶
- group
- Group of processes that share access to the window
(handle).
- IERROR
- Fortran only: Error status (integer).
DESCRIPTION¶
MPI_Win_get_group returns a duplicate of the group of the communicator used to
create the window associated with
win. The group is returned in
group.
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. By
default, this error handler aborts the MPI job, except for I/O function
errors. The error handler may be changed with MPI_Comm_set_errhandler; the
predefined error handler MPI_ERRORS_RETURN may be used to cause error values
to be returned. Note that MPI does not guarantee that an MPI program can
continue past an error.