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mpi.cart.coords
translates a rank to its Cartesian topology coordinate.
mpi.cart.coords(comm=3, rank, maxdims)
mpi.cart.coords
returns an integer array containing the Cartesian
coordinates of specified process.
Communicator with Cartesian structure
rank of a process within group
length of vector coord in the calling program
Alek Hunchak and Hao Yu
This function is the rank-to-coordinates translator. It is the inverse map of
mpi.cart.rank
. maxdims is at least as big as ndims as
returned by mpi.cartdim.get
.
mpi.cart.rank
# \donttest{
#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.coords(3,4,2)
# }
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