|Authors||B. Bogdanski, B. D. Johnsen, F. Zahid and E. G. Gran|
|Title||System and method for efficient network reconfiguration in fat-trees|
|Afilliation||Communication Systems, Communication Systems|
|Project(s)||ERAC: Efficient and Robust Architecture for the Big Data Cloud|
|Year of Publication||2016|
Systems and methods are provided for supporting efficient reconfiguration of an interconnection network having a pre-existing routing comprising. An exemplary method can provide, a plurality of switches, the plurality switches comprising at least one leaf switch, wherein each of the one or more switches comprise a plurality of ports, and a plurality of end nodes, wherein the plurality of end nodes are interconnected via the one or more switches. The method can detect, by a subnet manager, a reconfiguration triggering event. The method can compute, by the subnet manager, a new routing for the interconnection network, wherein the computing by the subnet manager of the new routing for the interconnection network takes into consideration the pre-existing routing and selects the new routing for the interconnection network that is closest to the pre-existing routing. The method can reconfigure the interconnection network according to the new routing.