process_xnode Subroutine

public subroutine process_xnode(buffer_x_to_y, Ne, m_in, m_out, f_plus_kind, total, B_buffer, F_buffer)

Generic processing function, it works both for variable- and for check- nodes - for variable nodes, f_plus_kind is a simple addition routine - for check nodes, f_plus_kind can be: + the "box plus" for exact message passing + the min abs with sign product for the min-sum algorithm + whatever you want for your approximation

Arguments

Type	Intent	Optional	Attributes		Name
type(TEdgeList),	intent(in)			::	buffer_x_to_y	List of edges "y" connected to node "x"
integer,	intent(in)			::	Ne	Number of edges
real(kind=wp),	intent(in)			::	m_in(Ne)	Input messages
real(kind=wp),	intent(out)			::	m_out(Ne)	Output messages
procedure(f_real_real)				::	f_plus_kind	Function with 2 real inputs and one real output used to perform the combination of input messages to output messages
real(kind=wp),	intent(out),	optional		::	total	f_plus_kind applied to all input messages
real(kind=wp),	intent(inout),	optional,	target	::	B_buffer(2:buffer_x_to_y%N)	pre-allocated backwords buffer for partial message processing results
real(kind=wp),	intent(inout),	optional,	target	::	F_buffer(buffer_x_to_y%N-1)	pre-allocated forward buffer for partial message processing results