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MPI_CART_RANK(3)					      MPI_CART_RANK(3)

NAME
     MPI_Cart_rank - Determines the process rank in the communicator, given
     the Cartesian location

SYNOPSIS
     C:

	  #include <mpi.h>

	  int MPI_Cart_rank ( comm, coords, rank )
	  MPI_Comm comm;
	  int *coords;
	  int *rank;

     C++:

	  #include <mpi.h>

	  int Cartcomm::Get_rank() const

     Fortran:

	  INCLUDE "mpif.h" (or USE MPI)

	  INTEGER comm, coords(*), rank, ierror

	  CALL MPI_CART_RANK(comm, coords(*), rank,
	  ierror)

STANDARDS
     This release implements the MPI 1.2 standard, as documented by the MPI
     Forum in the spring 1997 release of MPI:  A Message Passing Interface
     Standard.

DESCRIPTION
     The MPI_Cart_rank routine determines the process rank in the
     communicator, given the Cartesian location.  This routine accepts the
     following parameters:

     comm      Specifies a communicator with Cartesian structure (handle)

     coords    Specifies an integer array (of size ndims in the
	       MPI_Cart_create(3) routine), which specifies the Cartesian
	       coordinates of a process

     rank      Returns the rank of the specified process (integer)

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MPI_CART_RANK(3)					      MPI_CART_RANK(3)

     ierror    Specifies the return code value for successful completion,
	       which is in MPI_SUCCESS.	 MPI_SUCCESS is defined in the mpif.h
	       file.

SEE ALSO
     MPI_Cart_create(3)

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