Virtual control channel and its application to the massivelyparallel computer RWC-1

摘要

Global operation and system control are important issues inmassively parallel systems. The paper discusses virtual control networks(VCNs), which are substitutes for the current dedicated controlnetworks. First we introduce a new mechanism called Virtual ControlChannel (VCC) used to conduct control information over data networklinks. The network nodes have control finite state machines (CFSMs) anda VCN is composed of CFSMs. The VCC performs the role of a connectionwire between CFSMs. The mechanisms are applied to the RWC-1 machine. Thesimulation results reveal that reduction and broadcasting operations areefficiently executed on VCNs by exploiting the tree structure