A method for managing constant values among disparate code portions that use the same constant names is provided. The present invention allows a control signal in the phase domain of an internal clock to be synchronized with an external clock, when the phase domain of the external clock differs substantially from that of the internal clock. The first client computer sends, to the coordinator computer, a response relating to the comparing. The baffle surface directs gas in a flow path from the first inlet toward the second inlet and defines a baffle opening positioned between the first and second inlets.