mpi.cart.coords {Rmpi} | R Documentation |
mpi.cart.coords
translates a rank to its Cartesian topology coordinate.
mpi.cart.coords(comm=3, rank, maxdims)
comm |
Communicator with Cartesian structure |
rank |
rank of a process within group |
maxdims |
length of vector coord in the calling program |
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.coords
returns an integer array containing the Cartesian
coordinates of specified process.
Alek Hunchak and Hao Yu
http://www.lam-mpi.org/, http://www-unix.mcs.anl.gov/mpi/www/www3/
## 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.coords(3,4,2) ## End(Not run)