A method and apparatus for accelerating data routing between applications of an application group are disclosed. In the method and apparatus, a host computer system receives registration information from a first computer system instantiated on the host computer system, whereby the registration information indicates whether a first application is executed on the first computer system. In response to a request from a second computer system that is instantiated on the host computer system to route data to the first application, the host computer system routes the data to the first computer system, whereby the internal routing of the data is determinable by the first computer system.