A plurality of processor tiles are provided, each processor tile including a processor core. An interconnection network interconnects the processor cores and enables transfer of data among the processor cores. The interconnection network has a plurality of dimensions and is configurable to transmit data from an initial processor core or an input/output device to an intermediate processor core based on a first dimension ordering policy, and from the intermediate processor core to a destination processor core. The first dimension ordering policy specifies an ordering of the dimensions of the interconnection network when routing data through the interconnection network.