FreeBSD Manual Pages
MPI_Win_get_attr(3) MPI MPI_Win_get_attr(3) NAME MPI_Win_get_attr - Get attribute cached on an MPI window object SYNOPSIS int MPI_Win_get_attr(MPI_Win win, int win_keyval, void *attribute_val, int *flag) INPUT PARAMETERS win - window to which the attribute is attached (handle) win_keyval - key value (integer) OUTPUT PARAMETERS attribute_val - attribute value, unless flag is false flag - false if no attribute is associated with the key (logical) NOTES The following attributes are predefined for all MPI Window objects: MPI_WIN_BASE - window base address. MPI_WIN_SIZE - window size, in bytes. MPI_WIN_DISP_UNIT - displacement unit associated with the window. THREAD AND INTERRUPT SAFETY This routine is thread-safe. This means that this routine may be safely used by multiple threads without the need for any user-provided thread locks. However, the routine is not interrupt safe. Typically, this is due to the use of memory allocation routines such as malloc or other non-MPICH runtime routines that are themselves not interrupt- safe. NOTES FOR FORTRAN All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement. All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran. ERRORS All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in the last argument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job. The error handler may be changed with MPI_Comm_set_errhandler (for com- municators), MPI_File_set_errhandler (for files), and MPI_Win_set_er- rhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. 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; however, MPI implementations will attempt to continue when- ever possible. MPI_SUCCESS - No error; MPI routine completed successfully. MPI_ERR_WIN - Invalid MPI window object MPI_ERR_KEYVAL - Invalid keyval MPI_ERR_OTHER - Other error; use MPI_Error_string to get more information about this error code. 12/16/2021 MPI_Win_get_attr(3)
NAME | SYNOPSIS | INPUT PARAMETERS | OUTPUT PARAMETERS | NOTES | THREAD AND INTERRUPT SAFETY | NOTES FOR FORTRAN | ERRORS
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=MPI_Win_get_attr&sektion=3&manpath=FreeBSD+13.1-RELEASE+and+Ports>