MPI_Win_get_attr(3) | Open MPI | MPI_Win_get_attr(3) |
MPI_Win_get_attr - Obtains the value of a window attribute.
#include <mpi.h> int MPI_Win_get_attr(MPI_Win win, int win_keyval, void *attribute_val, int *flag)
USE MPI ! or the older form: INCLUDE 'mpif.h' MPI_WIN_GET_ATTR(WIN, WIN_KEYVAL, ATTRIBUTE_VAL, FLAG, IERROR) INTEGER WIN, WIN_KEYVAL, IERROR INTEGER(KIND=MPI_ADDRESS_KIND) ATTRIBUTE_VAL LOGICAL FLAG
USE mpi_f08 MPI_Win_get_attr(win, win_keyval, attribute_val, flag, ierror) TYPE(MPI_Win), INTENT(IN) :: win INTEGER, INTENT(IN) :: win_keyval INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(OUT) :: attribute_val LOGICAL, INTENT(OUT) :: flag INTEGER, OPTIONAL, INTENT(OUT) :: ierror
#include <mpi.h> bool MPI::Win::Get_attr(int win_keyval, void* attribute_val) const
Obtains the value of a window attribute.
The MPI standard prescribes portable Fortran syntax for the ATTRIBUTE_VAL argument only for Fortran 90. FORTRAN 77 users may use the non-portable syntax
INTEGER*MPI_ADDRESS_KIND ATTRIBUTE_VAL
where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the length of the declared integer in bytes.
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.
October 29, 2018 | 3.1.3 |