npRmpi (version 0.60-20)

mpi.cartdim.get: MPI_Cartdim_get

Description

mpi.cartdim.get gets dim information about a Cartesian topology.

Usage

mpi.cartdim.get(comm=3)

Value

mpi.cartdim.get returns the number of dimensions of the Cartesian structure

Arguments

comm

Communicator with Cartesian structure

Author

Alek Hunchak and Hao Yu

Details

Can be used to provide other functions with the correct size of arrays.

References

https://www.mpich.org/, https://www.mpich.org/static/docs/latest/www3/

See Also

mpi.cart.get

Examples

if (FALSE) {
# Not run in checks: requires a Cartesian communicator built from spawned slaves.
#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.cartdim.get(comm=3)
}