communication_planes_m Module

Communication among planes Non-blocking communication allowing overlap of communication and computation

Uses

- precision_grillix_m
- mpi

Contents

Subroutines

start_comm_planes finalize_comm_planes

Subroutines

public subroutine start_comm_planes(comm, ndim, ndim_halo, u, shift, uhalo, request)

Starts communication among two planes

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	comm	MPI communicator
integer,	intent(in)			::	ndim	Dimension of data to be sent
integer,	intent(in)			::	ndim_halo	Dimension of data to be received
real(kind=GP),	intent(in),		dimension(ndim)	::	u	Data to be sent
integer,	intent(in)			::	shift	Shift to current rank, where data is received from (rank+shift, assumung periodicity)
real(kind=GP),	intent(out),		dimension(ndim_halo)	::	uhalo	Halo values (Available after call to finalize_planes_comm)
integer,	intent(out),		dimension(2)	::	request	Communicator request

public subroutine finalize_comm_planes(request)

Finalises communication

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in),		dimension(2)	::	request	Communicator request