def send_sys_p p
            puts " * send_sys_p #{(p.next_dst.nil? ? 'no dst' : p.next_dst)} ..." if @spin.debug_routing
            _send p, true
            puts "   -> #{p.dst.path}#{Edoors::ACT_SEP}#{p.action}" if @spin.debug_routing
            @spin.post_sys_p p
        end
def send_sys_p p
            puts " * send_sys_p #{(p.next_dst.nil? ? 'no dst' : p.next_dst)} ..." if @spin.debug_routing
            _send p, true
            puts "   -> #{p.dst.path}#{Edoors::ACT_SEP}#{p.action}" if @spin.debug_routing
            @spin.post_sys_p p
        end
send the given Particle to system Particle fifo

 @param [Particle] p the Particle to send