mpi.cart.get: MPI_Cart_get

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

MPI_Cart_get

Description

mpi.cart.get provides the user with information on the Cartesian topology associated with a comm.

Usage

 mpi.cart.get(comm=3, maxdims)

Arguments

comm	Communicator with Cartesian structure
maxdims	length of vectors dims, periods, and coords in the calling program

Details

The coords are as given for the rank of the calling process as shown.

Value

mpi.cart.get returns a vector containing information on the Cartesian topology associated with comm. maxdims must be at least ndims as returned by mpi.cartdim.get.

Author(s)

Alek Hunchak and Hao Yu

References

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

See Also

mpi.cart.create,mpi.cartdim.get

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.remote.exec(mpi.cart.get(3,2))

Rmpi documentation built on April 1, 2023, 12:20 a.m.