Speed-up is implemented only in one or more portions of a network that would otherwise experience contention (i.e. when operated without speed-up). For example, an initial stage of a multi-stage interconnection network (MIN) is kept undilated while dilating at least a portion of a later stage. The dilated...http://www.google.de/patents/US6724758?utm_source=gb-gplus-sharePatent US6724758 - Stage specific dilation in multi-stage interconnection networks
