On the power of segmenting and fusing buses

The authors investigate communication among synchronous parallel processors through a new model of parallel computation called the reconfigurable multiple bus machine (RMBM). Four versions of the RMBM are introduced. In these models processors communicate over buses and possess varying abilities to segment and/or fuse buses. A hierarchy of the versions of the RMBM and the PRAM based on their relative 'powers' is established, indicating the relative contribution of segmenting and fusing buses.<<ETX>>