mpi.cart.rank: MPI\_Cart\_rank
In snoweye/Rmpi_PROF: Interface (Wrapper) to MPI (Message-Passing Interface)

Description Usage Arguments Details Value Author(s) References See Also Examples

mpi.cart.rank translates a Cartesian topology coordinate to its rank.

1	mpi.cart.rank(comm=3, coords)

`comm`	Communicator with Cartesian structure
`coords`	Specifies the Cartesian coordinates of a process

For a process group with a Cartesian topology, this function translates the logical process coordinates to process ranks as they are used by the point-to-point routines. It is the inverse map of mpi.cart.coords.

mpi.cart.rank returns the rank of the specified process.

Alek Hunchak and Hao Yu

http://www.lam-mpi.org/, http://www-unix.mcs.anl.gov/mpi/www/www3/

mpi.cart.coords

## Not run: 
#Need at least 9 slaves
mpi.bcast.cmd(mpi.cart.create(1,c(3,3),c(F,T)))
mpi.cart.create(1,c(3,3),c(F,T))
mpi.cart.rank(3,c(1,0))

## End(Not run)