Pci express to pci express based low latency interconnect scheme for clustering systems

Abstract

PCI-Express (PCIE) is a hierarchical Bus or-I/O interconnect standard-used for interconnection between a root-complex of a PCIE enabled computing system and peripheral devices over the bus that may include hierarchically connected and controlled PCIE switches. The current application describes a PCIE based interconnect scheme for a plurality of PCIE enabled computing systems connected in a cluster using a network switch, having a plurality of inbound PCIE ports, The network switch is independently configured and controlled as a hub of a star interconnection topology for switching and data-transfer between its inbound PCIE ports. Connecting an outbound PCIE port, enabled for interconnection, on each of the plurality of the PCIE enabled computing systems of the cluster to one of the plurality of inbound PCIE ports on the network switch the star interconnection for communication and data-transfer between the PCIE enabled systems of the cluster through the network switch is enabled.