osx man page for mpi_cart_coords

MPI_Cart_coords(3OpenMPI)												 MPI_Cart_coords(3OpenMPI)

NAME
       MPI_Cart_coords - Determines process coords in Cartesian topology given rank in group.

SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Cart_coords(MPI_Comm comm, int rank, int maxdims,
	    int *coords)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_CART_COORDS(COMM, RANK, MAXDIMS, COORDS, IERROR)
	    INTEGER   COMM, RANK, MAXDIMS, COORDS(*), IERROR

C++ Syntax
       #include <mpi.h>
       void Cartcomm::Get_coords(int rank, int maxdims,
	    int coords[]) const

INPUT PARAMETERS
       comm	 Communicator with Cartesian structure (handle).

       rank	 Rank of a process within group of comm (integer).

       maxdims
		  Length of vector coord in the calling program (integer).

OUTPUT PARAMETERS
       coords	 Integer array (of size ndims,which was defined by MPI_Cart_create call) containing the Cartesian coordinates of specified process
		 (integer).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       The inverse mapping, rank-to-coordinates translation is provided by MPI_Cart_coords.

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++ func-
       tions  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.

Open MPI 1.2							  September 2006					 MPI_Cart_coords(3OpenMPI)