debian man page for mpi_group_difference

Query: mpi_group_difference

OS: debian

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

MPI_Group_difference(3) 						MPI						   MPI_Group_difference(3)

NAME
MPI_Group_difference - Makes a group from the difference of two groups
SYNOPSIS
int MPI_Group_difference(MPI_Group group1, MPI_Group group2, MPI_Group *newgroup)
INPUT PARAMETERS
group1 - first group (handle) group2 - second group (handle)
OUTPUT PARAMETER
newgroup - difference group (handle)
NOTES
The generated group containc the members of group1 that are not in group2 .
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 communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (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 guarentee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible. MPI_SUCCESS - No error; MPI routine completed successfully. MPI_ERR_GROUP - Null or invalid group passed to function. MPI_ERR_INTERN - This error is returned when some part of the MPICH implementation is unable to acquire memory.
SEE ALSO
MPI_Group_free
LOCATION
group_difference.c 11/6/2010 MPI_Group_difference(3)
Related Man Pages
mpi_comm_create(3) - debian
mpi_group_difference(3) - debian
mpi_group_incl(3) - debian
mpi_group_rank(3) - debian
mpi_group_translate_ranks(3) - debian
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