MPI_Win_get_attr - Online Linux Manual PageSection : 3
Updated : Jan 21, 2016
Source : 1.10.2
Note : Open MPI
NAMEMPI_Win_get_attr − Obtains the value of a window attribute.
SYNTAX
C Syntax#include <mpi.h>
int MPI_Win_get_attr(MPI_Win win, int win_keyval,
void *attribute_val, int *flag)
Fortran Syntax (see FORTRAN 77 NOTES)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
C++ Syntax#include <mpi.h>
bool MPI::Win::Get_attr(int win_keyval, void* attribute_val) const
INPUT PARAMETERSwin Window to which the attribute is attached (handle). win_keyval Key value (integer).
OUTPUT PARAMETERSattribute_val Attribute value, unless ag = false flag False if no attribute is associated with the key (logical). IERROR Fortran only: Error status (integer).
DESCRIPTIONObtains the value of a window attribute.
FORTRAN 77 NOTESThe 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.
ERRORSAlmost 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. 0
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