mpi.cart.rank: MPI_Cart_rank

In Rmpi: Interface (Wrapper) to MPI (Message-Passing Interface)

MPI_Cart_rank

Description

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

Usage

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

Arguments

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

Details

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.

Value

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

Author(s)

Alek Hunchak and Hao Yu

References

https://www.open-mpi.org/

See Also

mpi.cart.coords

Examples

#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))

Rmpi documentation built on Sept. 23, 2024, 5:09 p.m.