A system and method of emulating network communications between applications executing in different partitions of a partitionable computer system is provided. In one example, an oral irrigation device includes a body portion, and a reservoir for storing fluids, wherein the body andor the reservoir define a first major diameter at a lower end of the oral irrigation device, and define a second major diameter at an upper end of the oral irrigation device, the first major diameter being larger than the second major diameter. Reduction in edge thickness swelling has been achieved. A notification is sent from the source node to the other nodes in the ring of an additional allocation of the resource required by the source node in order to convey the data flow to the destination node in the selected direction on the segments in the ring. The network device can be configured locally or using the central management system. The spatulas are rotatable about an axis which is perpendicular to the linear array of pans, the pans movable upwardly away from the pans and downwardly toward the pans.